220-1001 Test Questions

A PC has been randomly rebooting several times a day. The technician checks the case for overheating and finds the fans appear to be operating normally. Which of the following should the technician check NEXT? A. The motherboard for any sign of swollen capacitors B. The disk drive to determine if it is defragmented and operating properly C. The embedded NIC to ensure it has the latest firmware and drivers D. The RAM to confirm it is the correct type for the motherboard being used

A

What component protects against occasional electrical spikes? A. Surge suppressor B. Motherboard C. Hard disk drive D. Printer

A. A surge suppressor can protect against power surges and spikes.

For security purposes, which of the following user accounts are disabled by default? A. Guest B. Users C. Power Users D. Administrator

A. The Guest account is disabled by default, and it should remain disabled if it is not being used. See Chapter 10 for more information.

Which device operates at layer 2? A. Router B. Switch C. Repeater D. Hub

B. Switches operate at layer 2. Routers operate at layer 3. Hubs and repeaters operate at layer 1.

Which of the following statements are not associated with a star network? (Choose all that apply.) A. A single cable break can cause complete network disruption. B. All devices connect to a central device. C. It uses a single backbone computer to connect all network devices. D. It uses a dual-ring configuration.

A, C, D. In a star network, all systems are connected using a central device, such as a hub or a switch. The network is not disrupted for other users when more systems are added or removed. The star network design is used with today's UTP-based networks.

Which of the following connector types are capable of conducting power and transmitting data? (Choose all that apply.) A. Lightning B. Molex C. USB-C D. DB-9 E. micro-USB

A, C, E. USB cables and eSATA cables can transmit power and data. You will find Lightning, USB-C, and micro-USB connectors on the ends of USB cables. A Molex connector is power-only. A DB-9 is for serial cables and is data-only.

A technician is tasked with upgrading the hard drives of a high-end workstation to SSD. The drives must be configured in a RAID array, but the RAID card does not support SSD. Which of the following would the technician verify in order to use the new drives? A. Controller firmware B. Power requirements C. File system type D. System BIOS

A

A user is accessing webmail and needs to encrypt the contents of the email message and attachments prior to sending.Which of the following should be configured to accomplish this task? A. S/MIME settings B. VPN settings C. TLS settings D. SSL settings

A

Which of the following are disabled when airplane mode is switched on? (Choose all that apply.) A. Cellular B. Wi-Fi C. Bluetooth D. Settings app E. Lock screen

A, B, C. Airplane mode disables all radio communications, including cellular, Wi-Fi, and Bluetooth (and NFC as well). It does not affect the opening of any other apps or the lock screen.

A user wants to add static storage to a laptop and is unable to physically take it apart.Which of the following would be the BEST solution? A. USB drive B. Optical drive C. Network the share D. Cloud storage

A

After a technician installs a video card, which of the following should the technician configure NEXT? A. Resolution B. Colors C. Dots per inch D. Refresh rate

A

A technician has just installed a wireless access point in a customers home office. While testing the network and browsing the Internet, the technician finds that the connection is not stable, speeds are slow, and websites sometimes do not load. Which of the following should the technician do FIRST? A. Re-enable the broadcasting of the access point's SSID so it is visible to mobile devices. B. Use a WiFi analyzer to ensure neighboring networks are not using the same channel. C. Reconfigure network devices to use static IPs instead of DHCP-assigned addresses. D. Change the signal encryption from WPA2 to WEP to ease transmission overhead.

B

Which of the following connections are typically on the external PC chassis? (Select TWO). A. AGP B. SAS C. IEEE1394 D. eSATA E. IDE

C, D

A technician is building a new PC and notices that it has 8 DIMM sockets labeled 0 through 7. Four are white and four are blue. Which of the following should the technician do FIRST? A. Install the memory in the four white slots B. Install the memory in the four blue slots C. Consult the motherboard documentation D. Install the memory in slots 0 through 3 E. Fill all slots with memory

C. Consult the motherboard documentation

You are told by a technician over the phone that you need to bring replacement DDR SDRAM memory. What type of packaging is used for DDR SDRAM memory? A. 168-pin DIMM B. 224-pin DIMM C. 184-pin DIMM D. 240-pin DIMM

C. DDR SDRAM is manufactured on a 184-pin DIMM. DIMMs with 168 pins were used for SDR SDRAM. 224-pin DIMMs do not exist. DIMMs with 240 pins are used for DDR2 and DDR3 SDRAM.

A technician, Anne, notices there are no hardware volume control buttons on the new laptops that were ordered. Which of the following would control the volume on the laptop? A. Software only B. Bluetooth C. Function keys D. WiFi switch

C

A user wants to connect a laptop to the office LAN, charge the battery, and have a dual screen setup. Which of the following would BEST solve this user's requirements? A. Digitizer B. Thunderbolt C. Docking station D. Desktop mode

C

You have been asked to configure a full mesh network with seven computers. How many connections will this require? A. 6 B. 7 C. 21 D. 42

C. In a mesh network, the number of connections is determined by the formula x Å~ (x - 1) ÅÄ 2. With seven computers, that amounts to 21 connections.

Which unit of measurement relates to disk throughput? AƆMHz BƆGHz CƆIOPS DƆUptime

C. Input and output operations per second (IOPS) is a unit of measurement related to disk performance; more IOPS means better performance.

A technician is asked to upgrade RAM in a laptop from 4GB to 8GB. Which of the following should the technician do FIRST? A. Download the newest motherboard drivers B. Enable TPM C. Review the vendor laptop documentation D. Flash the BIOS

C. Review the vendor laptop documentation

Which of the following protocols is responsible for sending email? A. IMAP4 B. POP3 C. SMTP D. SNMP

C. Simple Mail Transfer Protocol (SMTP) - port 25 - is responsible for sending email. IMAP4 - port 143 - and POP3 - port 110 - both receive email. SNMP is a network management protocol.

You are pairing a Bluetooth headset to a mobile device. On the mobile device, after finding the device for pairing, what is the next step to take? A. Enable Bluetooth. B. Test connectivity. C. Enter the appropriate PIN code. D. Enable pairing.

C. The next step is to enter the PIN code. The steps, in order, are as follows: Enable Bluetooth, enable pairing, find a device for pairing, enter the appropriate PIN code, and test connectivity.

Your manager wants you to install a networked Internet appliance that prevents network traffic-based attacks and includes anti-malware and anti-spam software. What should you install? A. NIPS B. NIDS C. UTM D. Endpoint management system

C. It sounds like the manager wants a unified threat management (UTM) device. They are designed to be one-stop network protection devices. Networked intrusion detection and prevention systems will detect network attacks but do not have anti-malware or anti-spam capabilities. An endpoint management system is not a security appliance.

How many pins does a DDR2 DIMM have? ​ 240 ​ 200 ​ 168 ​ 184

240 A DDR2 DIMM has 240 pins. Incorrect: DDR2 SO-DIMMs have 200 pins, DDR DIMMs have 184 pins, and SDR DIMMS use 168 pins.

You are attaching an external hard drive to a computer with USB 2.0 ports. The user is concerned about data transfer speed. What is the maximum speed of USB 2.0? A. 480 Mbps B. 5 Gbps C. 10 Gbps D. 20 Gbps

A. USB 2.0 has a maximum speed of 480 Mbps. USB 3.0 is 5 Gbps; USB 3.1 is 10 Gbps; and USB 3.2 is 20 Gbps.

A broken fan can cause __________ damage to the CPU. ​ Electro-static ​ Thermal ​ Shock ​ Radiation

Correct Answer: Thermal damage is simply a more technical way to say "overheating". Incorrect Answers: A broken fan will not cause any electro-static, radiation, or shock damage to the CPU.

The IP address 3.4.15.124 is an example of which of the following class licenses? ​ Class A ​ Class C ​ Class D ​ Class B

Correct Answer: This is a Class A address. The Class A first octet is from 1 to 126. Incorrect Answers: The Class B first octet is from 128 to 191. The Class C first octet is from 192 to 223. The Class D first octet is from 224 to 239.

You want to equip yourself with FRUs for a laptop. What would you take with you? (Choose two.) ​ SD card reader ​ Hard drive ​ Video card ​ RAM ​ NIC

Hard drive RAM Correct Answers: The HDD and RAM are very easy to replace and are considered laptop field replaceable units (FRUs). Incorrect Answers: Video cards, NICs, and SD card readers are usually integrated into the laptop's motherboard and are not considered FRUs.

Which cloud computing concept is BEST described as focusing on the replacement of physical hardware at a customer's location with cloud-based resources? ​ SECaaS ​ IaaS ​ SaaS ​ PaaS

IaaS OBJ-4.1: Infrastructure as a Service (Iaas) is focused on moving your servers and computers into the cloud. If you purchase a server in the cloud and then install and manage the operating system and software, this is Iaas.

You have just set up an FTP server to allow users to download the new open-source application your company is releasing. Which port should be opened to allow users to connect to this server? ​ 22 ​ 23 ​ 25 ​ 21

OBJ-2.1: Port 21 is used for FTP. Port 22 is used for SSH. Port 23 is used for telnet. Port 25 is used for SMTP.

What PHYSICAL part of the hard drive stores data? ​ Track ​ Platter ​ Head Actuator ​ Cylinder

Platter Correct Answer: The metallic platters of the hard drive store data. Incorrect Answers: Cylinders, Heads, and Sectors are simply locations and are not physical parts of the drive.

Which of the following is the BEST approach a technician should take when informing a customer about their findings of any specific computer problem? A. Use non-technical terms. B. Use the appropriate acronyms. C. Use proper technical terms. D. Use email to ensure a written record.

A

Which kind of device stores data in patterns of magnetic polarity? AƆDVD BƆCD CƆUSB flash drive DƆHDD

D. A hard disk drive (HDD) uses magnetic polarity to store data. DVD and CD are both optical, and a USB flash drive is solid state.

A computer with an IP address of 143.75.125.1 most likely has a subnet mask that looks like which of the following? ​ 0.0.0.0 ​ 255.255.255.0 ​ 255.0.0.0 ​ 255.255.0.0

255.255.0.0 Any IP address with a starting number from 128 through 191 is almost certainly the old Class B which always has a subnet range of 255.255.0.0. Incorrect Answers: 255.0.0.0 is a Class A subnet. 255.255.255.0 is a Class C subnet. 0.0.0.0 is a invalid address. Note: 0.0.0.0 is a totally valid address for routers. It's called a default route. Don't worry about that term for now, but I bet you can't wait for Network+!

What is the "DDRXXX" rating for PC3200? ​ 400MHz ​ 100MHz ​ 200MHz ​ 320MHz

400MHz 400MHz. The term "PC3200" tells us this is DDR. You can calculate the DDR rating simply by dividing by eight. Incorrect Answers: 320MHz would be PC2560, which doesn't exist. 200MHz would be PC1600. 100MHz would be PC800, which doesn't exist.

A computer technician wants to boot up a computer using a USB flash drive. After inserting the USB drive and powering on the computer, it does not boot to the flash drive and instead boots to the OS on the hard drive. Which of the following is MOST likely the cause? A. The boot order in the BIOS is incorrect B. The hard drive is not formatted C. There is a disc in the optical drive D. There is insufficient memory

A

A finance officer has submitted a request for a new wireless access point. The technician has set up the physical equipment and powered it on, but the router will not recognize it. Which of the following should the technician do to correct the problem? A. Install firmware updates B. Run Windows updates C. Perform RPM updates D. Use apt-get for updates

A

Joe, a user, has a new slim profile laptop and is in need of additional USB ports. He has also requested FireWire connection capabilities which his laptop does not provide. Which of the following would BEST fit the specifications Joe has provided? A. A docking station B. An external USB hub C. A USB to FireWire converter D. A cable lock

A

The technician would like to upgrade a workstation by adding a USB 3.0 card, and upgrading the video card, sound card, and NIC. The technician is concerned about power consumption by the expansion cards. Which of the following upgrades would MOST likely require also upgrading the power supply? A. Video card B. USB 3.0 card C. Sound card D. Network card

A

Two drives in a RAID 5 have failed. Which of the following will the technician need to implement? A. Replace the failed drives and restore the data from backup to the RAID. B. Replace one of the failed drives and run the RAID repair. C. Replace the failed drives and format the RAID using the quick option. D. Replace one of the failed drives and repair the RAID using system utilities.

A

When a technician is planning to replace a laptop hard drive, the technician will need to: A. select a drive that is the correct form factor. B. choose the correct drive cache size for the laptop. C. also upgrade the memory. D. verify voltage requirements.

A

When configuring a VM, which of the following devices MOST likely needs to be configured to allow the VM access to other client VMs on the same host? A. Virtual switch B. Host C. Hypervisor D. Workstation NIC

A

Which of the following components of a motherboard is responsible for communications between CPU and RAM? A. North Bridge B. South Bridge C. PCIe slot D. CMOS battery

A

Which of the following connection types is capable of transmissions speeds up 100 Gbps? A. Fiber B. Coaxial C. Infrared D. DSL

A

Which of the following displays has the HIGHEST Hz frequency? A. Plasma B. LED C. CRT D. LCD

A

Which of the following has color codes that match on both ends (e.g. orange-white, orange, green- white, blue, blue-white, green, brown-white, brown)? A. UTP straight-through B. UTP crossover C. Multi-mode fiber D. Single-mode fiber

A

Which of the following is an advantage of an IPv6 network? A. Virtually unlimited number of network addresses B. Backwards compatible with all network devices and operating systems C. Less security concerns D. Higher available speed

A

Which of the following supports a MAXIMUM frequency of 100MHz? A. Cat5 B. Cat5e C. Cat6 D. Cat6a

A

Which of the following types of device cable types are used to connect output devices such as printers and scanners? A. Parallel B. eSATA C. IDE D. PATA

A

To configure two drives for MAXIMUM performance, which of the following RAID types should be used? A. RAID 0 B. RAID 1 C. RAID 5 D. RAID 10 Hide Solution

A Cheapest is Raid 1 Maximum performance is Raid 0

Which of the following are possible interfaces for printers? (Choose three.) A. Parallel B. SATA C. USB D. Network

A, C, D. Printers can communicate via parallel, serial, USB, wireless, and network connections.

Which type of server is responsible for preventing users from accessing websites with objectionable content? A. Proxy B. Web C. DHCP D. DNS

A. A proxy server can be configured to block access to websites that contain potentially dangerous or inflammatory material. Web servers host web pages, some of which may have objectionable content. DHCP servers provide clients with IP addresses, and DNS servers resolve host names to IP addresses.

Which connector is used for telephone cord? A. RJ-11 B. RJ-45 C. RS-232 D. BNC

A. An RJ-11 is a standard connector for a telephone line and is used to connect a computer modem to a phone line. It looks much like an RJ-45 but is noticeably smaller. The RJ-45 is used for networking. RS 232 is a serial connector. BNC is a coaxial connector.

A user wants to attempt to ensure that their boss can't see where they are, based on tracking their iPhone. Which option should they disable? A. Location Services B. GPS C. Tracking Services D. Airplane Mode

A. Apple calls its GPS services Location Services. For the phone to use GPS (and to be tracked), Location Services should be enabled. There is no Apple service called Tracking Services. Airplane Mode would turn off GPS (and Location Services), but it needs to be enabled, not disabled.

Which voltage is applied to the paper to transfer the toner to the paper in an EP process laser printer? A. +600VDC B. -600VDC C. +6000VDC D. -6000VDC

A. Because the toner on the drum has a slight negative charge (-100VDC), it requires a positive charge to transfer it to the paper; +600VDC is the voltage used in an EP process laser printer.

What is the lowest grade of UTP that is rated for 100 Mbps transmission? A. CAT-5 B. CAT-5e C. CAT-6 D. CAT-6a

A. CAT-5 was the first UTP standard ratified for 100 Mbps transmissions. Before that, CAT-3 was popular but only supported 10 Mbps. CAT-5e, CAT-6, and CAT-6a all support at least 1 Gbps and came after CAT-5.

You are setting up a small network that will not connect to the Internet. You want computers to be able to locate each other by using hostnames. What service will do this? A. DNS B. DHCP C. FTP D. APIPA

A. DNS is typically known as a name resolver on the Internet, but it will work on private networks as well. DNS resolves hostnames to IP addresses. DHCP automatically configures clients with IP address information. FTP is for file downloads. APIPA is a process used to assign clients a private IP address automatically when they can't reach the DHCP server.

When configuring a DNS server, administrators must create which of the following? A. Zone file B. Hosts file C. Scope file D. DNS proxy

A. DNS server records are contained in the zone file, which must be configured by administrators. A hosts file is an alternative to using DNS (but that does not work well when scaling to the Internet). A scope is created on DHCP servers. There is no DNS proxy.

Which type of coaxial cable is recommended for digital television cable signals? A. RG-6 B. RG-8 C. RG-58 D. RG-59

A. The two RG standards used for cable television are RG-6 and RG-59. Of the two, RG-6 is better because it can run longer distances and can handle digital signals. RG-59 is for analog signals only. RG-8 is thicknet coax, and RG-58 is thinnet coax.

An end user is building a small home media server. The user wants to be able to add and remove hard drives without powering down the server.Which of the following should be enabled to allow for this? A. NVMe B. AHCI C. ATAPI D. UEFI

AHCI Advanced Host Controller Interface

Which of the following is the virtualization technology supported by most modern AMD processors? ​ HT ​ AMD-V ​ VT ​ Intel-V

AMD-V OBJ-4.2: To use virtualization and have virtual machines running on a single workstation, you need to have a CPU specifically designed to support virtualization. For Intel processors, they must support Virtualization Technology (VT). If you are using an AMD processor, it should support AMD-V (AMD's virtualization technology).

How often should you reapply thermal compound on your CPU? ​ Reapply every two years. ​ Reapply yearly. ​ Applying thermal paste is not a maintenance issue. ​ It's a good idea to reapply thermal paste whenever you clean the inside of the system unit.

Applying thermal paste is not a maintenance issue. You never reapply thermal paste as a maintenance issue! Once it's on, you don't need to touch it again unless you remove the CPU fan. Incorrect Answers: The other answers should not be mistaken for being correct. They are, in fact, incorrect.

What computer component contains a lot of lead and must be recycled? AƆCRT BƆToner cartridge CƆInk cartridge DƆHard disk drive

AƆCRT A. A CRT monitor contains lead, so it must be disposed of properly, not thrown out with regular trash.

A bank wants to maximize the security of employee computer data displayed on their screen. Which of the following would BEST accomplish these goals? A. Keyboard filters B. Privacy filters C. Screensavers D. Secure display drivers

B

A brand new datacenter has been wired with all CAT6a wiring. A technician has been tasked to immediately install and boot up an already configured mission critical file server. Prior to turning the server on, the technician realizes that they had brought CAT5e patch cords by mistake. Which of the following should the technician do? A. Install the CAT5e cable, boot the server and then return and replace it later. B. Inform the customer and recommend temporarily using the CAT5e cable. C. Install the CAT5e cable, document the installation and leave the premises. D. Inform the customer that the server will be available as soon as a CAT6a cable is acquired.

B

A client, Joe, has reported issues with the back cover of his company-issued smartphone. Joe stated that it seems to either come off on its own, or will not seat properly on the phone. Which of the following is MOST likely the problem? A. The MicroSD card is not installed properly. B. The battery needs to be replaced. C. The charging port is bent. D. The smartphone has a non-OEM cover.

B

A clients computer is not connecting to a website. Which of the following commands will allow the technician to view the route/number of hops between the host and remote systems? A. nbtstat B. tracert C. nslookup D. netstat

B

A technician has built a custom workstation for an end user. The end user reports that the workstation ran for a few minutes and then crashed. When the user subsequently boots the workstation, it crashes much more quickly.Which of the following did the technician forget to do when building the workstation? A. Apply thermal paste. B. Connect the case fans. C. Configure integrated GPU. D. Overclock the CPU.

B

Joe's company just moved into a new building, and the company's management is very concerned about proper equipment grounding. Which of the following risks are they attempting to mitigate by grounding equipment? A. Security breaches B. Electrical shock C. Chemical burns D. Equipment theft

B

There are 20 laptops in a room and they all need to connect wirelessly to the network. Which of the following would be the BEST device to use? A. Switch B. Router C. Access point D. Hub

B

When referring to laser printing, which of the following describes the development process? A. The corona wire places a static charge on the drum. B. Toner is pulled to the charged areas of the drum. C. Toner is pulled from the drum to the paper. D. The toner is permanently affixed to the paper.

B

Which of the following BEST describes the reason a network administrator would task a technician with replacing a hub with a switch? A. The hub did not provide PoE B. The hub had too many collisions C. The hub was out of ports D. The hub had a bad port

B

Which of the following BIOS level settings allow an administrator to view warnings on possible hardware level changes? A. Drive lock B. Intrusion detection C. BIOS password D. Trusted platform module

B

Which of the following RAM types is used if it is labeled as 4 GB PC1333? A. RAMBUS B. DDR3 C. SDIMM D. SIM

B

Which of the following adapter types uses a 7-pin cable to transmit video signals? A. RGB B. S-Video C. HDMI D. DVI

B

Which of the following connectors are commonly used for fiber optic cables? A. RJ-11 and RJ-45 B. ST and LC C. F-connectors D. BNC

B

Which of the following devices can be used to merge traffic between two different network topologies? A. Hub B. Bridge C. Switch D. Access point

B

Which of the following expansion cards would MOST likely have the requirements of utilizing a direct auxiliary 6-pin power plug to operate properly? A. PCI Express RAID card B. PCI Express video card C. PCI Express FireWire card D. PCI Express LAN card

B

Which of the following expansion slots is MOST commonly used for high-end video cards? A. PCI B. PCIe C. CNR D. AGP

B

Which of the following types of connectors would be found to connect printers and scanners to a device that did not have any network connections? A. RJ-45 B. Parallel C. RJ-11 D. BNC

B

Video editing workstations require the fastest hard drive access times with large storage capacity. Which of the following hard disk setups would be MOST ideal for the described computer? A. Two 500 GB SATA2 hard drives used in a JBOD array B. Two 500 GB SATA2 hard drives in a hardware RAID 0 C. Two 500 GB SATA2 hard drives in a hardware RAID 1 D. Two 500 GB SATA2 hard drives in a software RAID 0

B JBOD (which stands for "just a bunch of disks") generally refers to a collection of hard disks that have not been configured to act as a redundant array of independent disks (RAID) array

A customer needs to run 3 virtual machines on their software design workstation. Which of the following CPUs would be MOST cost effective for this task? A. 3 Core B. 4 Core C. 8 Core D. 12 Core

B 1 for the host and one for each of the virtual machines

A brownout has occurred within a building. A technician is repairing a workstation which has a power light, but is not displaying anything on the screen and is not making any sounds during boot up. Which of the following should be used to further troubleshoot the workstation? A. Loop back plug B. POST card C. Power supply tester D. Multimeter

B In computing, a POST card is a plug-in diagnostic interface card that displays progress and error codes generated during power-on self-test (POST) of a computer. It is used to troubleshoot computers that do not start up.

Ann is cleaning the printer pickup rollers and spills the cleaning fluid on her leg. In which of the following would she find the proper way to cleanup the spill? A. Inventory spreadsheet B. MSDS C. Project management plan D. EULA

B Material Safety Data Sheets (MSDSs), the original versions of documents containing chemical hazard information prior to GHS, had as many formats as the imaginations of chemical suppliers would allow, leading to confusion and lost time including during situations when workers most needed to access the information.

A user opens a service ticket for a laser printer that has paper jams. Lately, jamming has become more frequent. The technician recreates the problem and checks the printer logs for more information about the printer. Which of the following choices are MOST likely fixes to this problem? (Select TWO). A. Clean and inspect the laser drum assembly B. Clean and inspect the entire paper path C. Use the printer maintenance kit to replace parts D. Replace the paper exit assembly switch E. Clean and replace the paper out sensor F. Clean the fuser cold roller and verify fuser operation

B, C

Your manager wants to use the cloud because everyone seems to be talking about it. What should you include when you are listing the benefits of using the cloud? (Choose all that apply.) A. Increased security B. Increased scalability C. Lower cost D. Improved reliability

B, C, D. Cloud solutions are great for enhancing scalability and reliability while generally lowering costs. The biggest issue with cloud computing is security.

A customer is building a high-end gaming PC and is seeking an appropriate power supply unit. Which of the following feature-sets of a power supply should be installed? (Select THREE). A. Mini-ITX form factor B. High number of connectors C. 24-pin main connector D. 20-pin main connector E. 350-450 watts of power F. Dual 12v rails

B, C, F Gaming PC needs at least 500 Watts. Dual rails refer to the +12V rail(s). Essentially, having a dual(or quad) rail design splits the total +12V amperage capability among four circuits. This can allow for safer operation because you're not forcing loads of power through a single rail.

Which of the following are advantages to using dial-up Internet service? (Choose two.) A. High speed B. Broad availability C. Low cost D. High security

B, C. Dial-up Internet is archaic by today's standards, but it is widely available (anywhere there is phone service), and it's generally lower in cost than other Internet access methods. It's definitely not high speed, and its security is really no different from that of broadband Internet access methods.

Which of the following are advantages of e-readers using E Ink over tablets? (Choose two.) A. More vivid colors B. Longer battery life C. Easier to read in bright light D. Better screen resolution

B, C. E-readers that use electrophoretic ink (E Ink) have a longer battery life than tablets and are easier to read in bright light conditions. They do not have more vivid colors or better screen resolution.

Which two communications technologies can you use to create a VPN connection? (Choose two.) A. Bluetooth B. Wi-Fi C. Cellular D. NFC

B, C. You can create virtual private network (VPN) connections on a mobile device using Wi-Fi or cellular network connections. Bluetooth and NFC are not used to create VPNs.

You are troubleshooting a Windows-based desktop computer that is experiencing unexpected shutdowns. Which of the following would be a good next step to resolve the issue? (Choose all that apply.) A. Replace the motherboard, CPU, and RAM to see if it resolves the problem. B. Replace the RAM to see if it resolves the problem. C. Reinstall Windows to see if it resolves the problem. D. Replace the CPU to see if it resolves the problem.

B, D. Intermittent shutdowns are hard to troubleshoot but are most likely hardwarerelated. When troubleshooting, always make one change at a time to try to resolve the issue. Replacing the RAM or the CPU to see if it resolves the problem could be a good next step, but replacing three components at once is too many changes unless you have specific reason to believe it is all three. Reinstalling Windows is probably overkill as well. Narrow down the issue before implementing sweeping solutions such as that.

Which of the following have been common methods to backlight an LCD monitor? (Choose two.) A. RGB OLEDs B. LEDs C. Incandescent bulbs D. Halogen bulbs E. Fluorescent bulbs

B, E. Early LCD monitors featured one or more fluorescent bulbs that were used to produce light that shone through the LCD panel. Modern LCD monitors have LED panels to generate the light, the advantage being that there is now a separate LED for each picture element instead of a common light source for the entire monitor. OLEDs do provide light, but RGB OLEDs are not used. Incandescent and halogen bulbs are not used for backlighting.

You are training new technicians to install RAM and pointing out differences between packages. Which of the following are the numbers of pins that can be found on DIMM modules used in desktop motherboards? (Choose two.) A. 180 B. 184 C. 200 D. 204 E. 232 F. 240

B, F. DIMMs used in desktop motherboard applications have one of four possible pin counts. SDR SDRAM is implemented on 168-pin modules. DDR SDRAM is implemented on 184-pin modules. DDR2 and DDR3 are implemented on 240-pin modules with different keying, and DDR4 DIMMs have 288 pins. Older dual-channel DIMM modules have 232 pins. Modules with 200 and 204 pins are used in the SODIMM line, and there are no modules with 180 pins

Your computer has a 64-bit CPU. Which statement is true regarding which operating systems you can install on it? A. 64-bit operating systems only B. 64-bit or 32-bit operating systems C. 32-bit operating systems only D. It depends on how much RAM is in your system.

B. 64-bit or 32-bit operating systems B. A 64-bit processor can handle 32-bit or 64-bit OSs. It is a waste of power to use a 32-bit OS on it, but it will work. See Chapter 4 for more information.

You have just set up a network that will use the TCP/IP protocol, and you want client computers to obtain IP configuration information automatically. Which type of server do you need for this? A. DNS B. DHCP C. NAT D. IP configuration server

B. A Dynamic Host Configuration Protocol (DHCP) server provides IP configuration information to hosts when they join the network. Port number is 67/68 A Domain Name System (DNS) - port 53 - server resolves hostnames to IP addresses. NAT translates private IP addresses into public IP addresses. There is no IP configuration server.

One of your network users has an older laptop with no Bluetooth support. He recently received a Bluetooth headset that he needs to use with his laptop. What is the quickest and cheapest way to make the headset compatible with his laptop? A. Buy a Wi-Fi-compatible headset B. Buy a USB Bluetooth adapter C. Buy a Mini PCIe Bluetooth adapter D. Replace the laptop

B. A USB Bluetooth adapter should do the trick. There are Mini PCIe Bluetooth adapters, but installing one is trickier than inserting a USB device. There aren't really any Wi-Fi compatible headsets on the market—headsets are exactly what Bluetooth was designed for. Replacing the laptop is a much more expensive proposition.

Which of the following is an area where you can place a public server for access by people you might not trust otherwise? A. NAT B. DMZ C. Intranet D. Internet

B. A demilitarized zone (DMZ) is an area where you can place a public server for access by people you might not trust otherwise. NAT is a service that maps private IP addresses to public IP addresses. The intranet is the internal network that should be protected. The Internet is the untrusted public network.

A client is looking for a desktop drive technology that saves money over SSDs but offers performance increases over HDDs and can be used to house the operating system. Which of the following is the best to recommend? A. Dual-drive technology B. SSHD C. NVMe D. Magnetic-only drive

B. A solid-state hybrid drive incorporates the features of both conventional magnetic-only hard drives and solid-state drives. As a result, the performance of an SSHD exceeds that of a hard drive but costs less than the equivalent-sized SSD. A dual-drive option still requires the purchase of a full-sized SSD. Adding the cost of the SSD and the HDD, the dual-drive solution does not satisfy the requirement of an affordable technology. NVMe is a form of solid-state drive and does not save money.

Which of the following needs the most resources? A. Thin client B. Thick client C. Medium client D. Stationary client

B. A thick client is a standard PC. When discussing thin and thick clients, you should understand that a thick client is a PC that has all the capabilities of a standard PC. It runs all applications locally from its own hard drive. A thin client is one that has minimal capabilities and runs the applications (and perhaps even the operating system itself) from a remote server. There is no medium client or stationary client.

Which of the following is not a function of an operating system? A. Interface between the user and the machine B. Coordinate software applications C. Coordinate hardware components D. Monitor system health

B. An operating system provides an environment for the software to function, but it does not coordinate between software applications.

One of your friends wants to play a console-based game on her tablet. What type of accessory would you most recommend she connect and configure to help the experience? A. VR headset B. Game pad C. AR headset D. Extra battery pack

B. For game players, a game pad or gaming controller may be a good accessory to have. VR headsets could also be good, but only for certain games. An AR headset isn't likely to help with gaming. An extra battery pack could help extend the playing time, but it isn't needed if the tablet is plugged in.

Your company hosts its own web server, and it allows consumers to make purchases via the server. The help line has been getting complaints that users are unable to access the secure portion of the website. You open the site and it seems fine, although the secure portion where transactions are completed is inaccessible. What is the most likely cause? A. The firewall is blocking TCP port 80. B. The firewall is blocking TCP port 443. C. The security module of the web server is malfunctioning. D. The web server is down.

B. For secure transactions, the web server should be using HTTPS, which uses port 443. If non-secure portions of the website work, then the server is fine. It's most likely that the firewall is blocking inbound traffic on port 443.

What is the number of active satellites used by GPS? A. 12 B. 24 C. 30 D. 36

B. GPS uses 24 satellites. There are 32 GPS satellites in space, but the extra 8 are backups.

Which of the following protocols was designed to access information stored in an information directory, such as employee phone books? A. FTP B. LDAP C. RDP D. CIFS

B. Lightweight Directory Access Protocol (LDAP) - port 389 - is designed to access information stored in an information directory typically known as an LDAP directory or LDAP database. This typically includes employee data and network configuration data. FTP is designed to transfer files. RDP is a remote desktop protocol, and CIFS is used to share files and printers.

A technician is building a workstation that is to be used as an HTPC and will sit next to the audio receiver. Which of the following form factors would the technicianMOST likely use because of its size? A. ATX B. Mini-ITX C. AT D. Micro-ATX

B. Mini-ITX Home Theater PC

Which of the following involves the vendor providing the entire solution? A. IaaS B. SaaS C. PaaS D. SIEM

B. Software as a service (SaaS) involves the vendor providing the entire solution. This includes the operating system, the infrastructure software, and the application. Infrastructure as a service ( IaaS) provides only the hardware platform to the customer. Platform as a service ( PaaS) provides a development environment. Security Information and Event Management (SIEM) is a system that aggregates all log files and analyzes them in real time for attacks.

Apps for Android-based smartphones and tablets can be downloaded from which store? A. App Store B. Google Play C. Android Store D. Microsoft Store

B. The app store for Android-based devices is Google Play. iOS devices download apps from the App Store. Windows-based apps can be downloaded from the Microsoft Store.

Which of the following is not a private IP address range? A. 10.0.0.0-10.255.255.255 B. 172.16.0.0-172.16.255.255 C. 192.168.0.0-192.168.255.255 D. 192.168.5.5-192.168.255.255

B. The class B range is 172.16.0.0-172.31.255.255. The other ranges are correct.

Which printer contains a wheel that looks like a flower with raised letters and symbols on each "petal"? A. Inkjet printer B. Daisy-wheel printer C. Dot-matrix printer D. Laser printer

B. The daisy-wheel printer gets its name because it contains a wheel with raised letters and symbols on each "petal."

Which laser printer component permanently presses the toner into the paper? A. Transfer corona B. Fuser assembly C. Printer controller circuitry D. Paper transport assembly

B. The fuser assembly presses and melts the toner into the paper. The transfer corona transfers the toner from the drum to the paper. The printer controller circuitry converts signals from the PC into signals for the various printer assemblies. The paper transport assembly controls the movement of the paper through the printer.

While troubleshooting a client computer, you decide to obtain a new IP address from the DHCP server. After releasing the existing address, which command do you use to get new IP information from the DHCP server? A. ipconfig /refresh B. ipconfig /renew C. ifconfig /release D. ifconfig /start

B. The ipconfig command is perhaps the most-used utility in troubleshooting and network configuration. The ipconfig /renew command will send a query to the DHCP server asking it to resend and renew all DHCP information. For a more detailed look at the ipconfig command, type ipconfig /? at the command prompt. The ifconfig command is used with Linux and macOS clients. There are no /refresh or /start switches for these commands.

You are having problems with the video card in one of your computers. Where could you check for troubleshooting information? A. Another computer with the same video card B. The video card manufacturer's website C. The manual that came with the card D. The server log

B. The manufacturer's website is the first place you should go for information on your products, including troubleshooting information. Many years ago, manufacturers would provide paper manuals with their products, but that's almost unheard of today, unless you download a PDF version from the website. Server logs can show error codes, but they won't tell you how to fix anything.

You are using the best practice methodology to troubleshoot a video problem. During which step should you question the obvious? A. Test the theory to determine cause. B. Establish a theory of probable cause. C. Identify the problem. D. Establish a plan of action to resolve the problem.

B. The second step in the best practice methodology is to establish a theory of probable cause (question the obvious). While it makes sense to question the obvious at all times during troubleshooting, it officially falls under this step in the best practice methodology.

A firewall operates by using a set of rules known as what? A. SLA B. ACL C. Whitelist D. DMZ

B. The set of rules for access on a firewall is called an access control list (ACL). An SLA is an agreement on service level for QoS. A whitelist may be part of an ACL but is not the set of rules. A DMZ is a subnet located between an external network router and an internal router.

You need to replace a failed AC adapter for a client's laptop. When replacing the adapter, which of the following purchases is acceptable to obtain the same or better results? A. An AC adapter with a higher voltage rating than the original B. An AC adapter with a higher wattage rating than the original C. A DC adapter with the same voltage rating as the original D. An AC adapter with a lower voltage and wattage rating than the original

B. Think of wattage as a "bucket" of power that the attached device can draw from. A bigger bucket simply holds more power but does not force the power on the device. Less wattage is not advised, however. Voltage can be thought of as the pressure behind the power to the device. Anything but the proper voltage is dangerous for the device. When you replace a laptop's AC adapter, you should match the voltage ratings of the original adapter. This also means that you should use an adapter with a fixed voltage if that matches the characteristics of the original; otherwise, obtain one that automatically switches voltages at the levels needed.

A mobile user is having cellular connectivity problems when roaming but not when near his home. He is told by his carrier that he needs to update his settings. Which of the following settings does he most likely need to update? A. PRI B. PRL C. Baseband D. IMEI

B. When roaming, the mobile device will use the Preferred Roaming List (PRL) to connect to the proper cell phone tower. The Product Release Instruction (PRI) contains settings for configuration items on the device that are specific to the network that it's on. Baseband refers to all wireless communications. The international mobile equipment identity (IMEI) is a 15-digit serial number that is unique to each phone, and is not relevant to this issue.

A user submits a trouble ticket for their laptop. The user states that every time they move the laptop from one place to another, the system loses power and shutdowns. You have examined the laptop fully and then removed and reinstalled the hard drive, RAM, ribbon cable to the LCD, and the battery, but the laptop is still shutting down whenever it is moved. Which of the following is MOST likely causing the issue with this laptop shutting down? ​ Laptop is unplugged ​ Battery connection is loose ​ Failed CMOS battery ​ Laptop is overheating

Battery connection is loose ​ OBJ-5.5: Based on the symptoms provided (laptop shutting down whenever it is moved), it is most likely a loose battery connection causing the issue. If the battery connection wasn't loos and the laptop was unplugged, the laptop would continue to run on battery power. Overheating can cause a laptop to shutdown, but it wouldn't necessarily happen each time the laptop is moved. If the CMOS battery fails, it will not cause the laptop to shut down, but instead will cause the laptop to lose the correct date/time.

A user is complaining that every time they enable airplane mode on their laptop, their external mouse and headphones stop working. Which of the following signals being disabled by airplane mode is likely causing the issues experienced by this user? ​ GPS ​ Wireless ​ Bluetooth ​ Cellular

Bluetooth OBJ-1.6: Bluetooth is a wireless connectivity method that is usually used by external mice and wireless headphones. When airplane mode is enabled, the GPS, cellular, wireless, and Bluetooth radios are disabled in smartphones, tablets, or laptops. If the Bluetooth radio is turned off/disabled, it will cause issues with Bluetooth-connected devices like mice and headphones for the end-user.

A developer has configured a new web application on a workstation using client-side virtualization. Despite working locally on the developer's PC, other users on the network are not able to access the application.Which of the following network configurations should the virtual machine be configured for to allow other users to access the application? A. Internal networking B. Bridged networking C. Private networking D. NAT networking

Bridged networking. This is for more advanced networking needs, such as network simulations and running servers in a guest. When enabled, Oracle VM VirtualBox connects to one of your installed network cards and exchanges network packets directly, circumventing your host operating system's network stack. Internal networking. This can be used to create a different kind of software-based network which is visible to selected virtual machines, but not to applications running on the host or to the outside world.

What is the reason for different color wires on a power supply? AƆThe wire color determines the appropriate component for the connector. BƆEach wire color represents a different voltage. CƆCertain color wires deliver AC power, and certain ones deliver DC power. DƆCertain color wires deliver higher-quality power than others.

BƆEach wire color represents a different voltage. B. Each wire color is a different voltage. All wires deliver DC power of the same quality level.

A common method of accessing computers remotely that uses port 23 is known as? A. LDAP B. RDP C. Telnet D. FTP

C

A computer technician is responding to a call about a printer that is causing streaks to appear on every printout. Which of the following is the MOST likely cause? A. Duplex unit B. Toner cartridge C. Imaging drum D. Pickup rollers

C

A server has been configured behind a firewall and a website has been deployed, but customers are unable to access the website. Which of the following should the technician do to ensure the customers can access the site? A. Place server in DMZ. B. Change DHCP settings. C. Enable port forwarding. D. Adjust QoS settings.

C

A service call was opened for a thermal printer that has poor print quality. Which of the following should the technician do FIRST? A. Replace the print head with OEM replacement. B. Use a cotton swab and alcohol to clean the print head. C. Use the printer manufacturer's cleaning kit to clean the print head. D. Use an industry approved cleaning kit to clean the print rollers. E. Use the printer manufacturer's cleaning kit to clean the print rollers.

C

A technician has been asked to install a printer on a Windows XP machine. Through which of the following Control Panel utilities will the technician install the printer? A. Printers and Devices B. Devices and Printers C. Printers and Faxes D. Devices

C

A technician is asked to repair a broken Ethernet jack in a conference room. Which of the following tools would the technician use when repairing the wall jack? A. Crimper B. Toner probe C. Punchdown tool D. Multimeter

C

A technician is notified of an inkjet printer not printing properly. The users computer has the printer software loaded and is not displaying any errors. A test print was performed, with one of the colors not printing properly. Which of the following would the technician typically perform FIRST to resolve the issue? A. Replace cartridges B. Run a cleaning page C. Clean heads D. Clean fuser assembly

C

A technician is notified that a laptop is not booting. It is discovered that there are no system lights, sounds, or display when the power button is pressed. Which of the following should the technician attempt FIRST in the troubleshooting process? A. Connect an external monitor into the laptop to determine if the LCD has failed. B. Boot the system from either a boot CD or other removable media type. C. Disconnect the AC and battery power and hold the power button for several seconds. D. Remove any hard drives or optical drives, RAM, and any wireless cards or USB devices from the laptop.

C

A technician is tasked with setting up a workstation in a new location. The technician realizes there is no network connectivity and the workstations NIC does not have a link light. Given the connection in the wall is correctly labeled, which of the following would be BEST for the technician to use NEXT? A. A multimeter B. A tone generator C. A cable tester D. A punchdown tool

C

A technician is trying to install a full-size PCI card into a slim line desktop PC. Which of the following would MOST likely be required to facilitate installation? A. RAID card B. CNR card C. Riser card D. MCA card

C

A technician is working on a server with high latency on the mapped network drive. Upon entry into the server room, the technician suspects an issue with one of the drives in the array. Which of the following would the technician do to resolve the problem? A. Reseat the drive cable in the array. B. Replace the RAID controller. C. Replace the faulty drive in the array. D. Reinstall the RAID drivers.

C

A technician just finished replacing a laptop screen, and upon first boot notices that the screen provides a very faint but darkened image which cannot be adjusted.Which of the following was MOST likely left unplugged after replacement? A. CMOS Battery B. Mini-PCI Card C. Inverter D. DC Cord

C

A technician needs to boot a PC from a USB drive. Which of the following settings should be disabled to accomplish this task? A. Fast Boot B. UEFI Admin Password C. Secure Boot D. Legacy Boot

C

A technician needs to run a cable for a new computer and the requirement is CAT6. Which of the following wiring connectors should the technician use when terminating the cable? A. BNC B. RJ-12 C. RJ-45 D. ST E. F-connector

C

A technician would like to connect to a computer using remote desktop. Which of the following ports does remote desktop use by default? A. 22 B. 443 C. 3389 D. 8080

C

A user is attempting to print a color document but it will not print in color. Which of the following should the technician do FIRST to fix the problem? A. Reset printer IP address. B. Change color toner cartridge. C. Check grayscale setting. D. Reinstall printer driver.

C

A user is having problems printing. The technician believes the printer may be out of ink. Which of the following troubleshooting steps should be performed NEXT? A. Establish a plan of action to resolve the problem B. Implement the solution C. Test the theory to determine cause D. Verify full system functionality

C

A user is reporting that a desktop monitor backlighting is very dim. Which of the following should be performed FIRST when troubleshooting the problem? A. Update drivers B. Reseat the video card C. Use OSD tools D. Replace the monitor

C

A user is trying to use Remote Desktop to connect to another computer on the LAN. The connection fails. The technician opens up a command prompt and types the following "telnet computername 3389" and also gets the same error message. Which of the following is the MOST likely cause of this error, assuming that theOS firewall has been disabled? A. The antivirus software is blocking the incoming connection. B. The ISP is blocking Remote Desktop at their end. C. The RDP connection has been configured to use a non-standard port. D. The telnet service has not been installed.

C

RAID 5 requires a minimum of how many hard drives? A. 1 B. 2 C. 3 D. 4

C

Which of the following 802.11 standards has a MAXIMUM bandwidth throughput of 54Mbps and uses 2.4GHz frequency? A. A B. B C. G D. N

C

Which of the following RAM types supports triple channel configurations? A. RAMBUS B. DDR C. DDR3 D. DDR2

C

Which of the following devices uses both light and a lens to facilitate data warehousing? A. Digitizer B. Touch screen C. Barcode reader D. Camera

C

Which of the following devices would provide protection for electronic equipment in an area prone to intermittent, unstable power? A. Power strip B. Surge suppressor C. Uninterruptible power supply D. Line conditioner

C

Which of the following expansion slots uses a serial connection? A. PCI B. PCI-X C. PCIe D. AGP

C

Which of the following network devices filters traffic of many different protocols based on a predetermined set of rules established by a system administrator? A. Proxy B. Switch C. Firewall D. Router

C

Which of the following translates digital signals into analog for transmission over phone lines? A. SAN B. VoIP C. Modem D. Bridge

C

Which of the following types of connectors can use a maximum of 8 strands of wires? A. RJ-11 B. RS-232 C. RJ-45 D. BNC

C

A Windows system is unable to connect to the network. A ping loopback test verifies that the network card is working. What is your next step in troubleshooting the problem? ​ Run IPCONFIG. ​ Verify that the switch is working properly. ​ Check to see if the link light on the NIC is on. ​ Install the driver for the network card.

Check to see if the link light on the NIC is on. Correct Answer: The next step is to check for connectivity. Look at the link light on the NIC to see that it is on, indicating a good connection to the hub or switch. Incorrect Answers: The other options might be helpful, but they are not your next step.

Which type of flash memory card is the oldest? ​ SmartMedia ​ Secure Digital ​ Memory Stick ​ CompactFlash

CompactFlash Correct: CompactFlash is the oldest type of flash memory card. Incorrect: Memory Stick is Sony's proprietary memory format. Secure Digital cards are the most common type of flash memory cards used today. SmartMedia came out as a competitor to CompactFlash, but is no longer used in newer devices.

Which port should be blocked on a server to block remote logins? ​ 21 ​ 443 ​ 53 ​ 80

Correct Answer: 21. FTP uses port 21. Incorrect Answers: DNS uses port 53. HTTP uses port 80 by default. HTTPS uses port 443 by default.

What is the best way to determine the total capacity and specific type of RAM your system can handle? ​ Check the Device Manager. ​ Check the motherboard book. ​ Open the case and inspect the RAM. ​ Check the System utility in the Control Panel.

Correct Answer: The best way to determine the total capacity and specific type of RAM your system can handle is to check the motherboard book. Incorrect Answers: The other answers won't tell you the total capacity or specific type of RAM your system can handle.

What do you plug into a three-row, 15-pin port? ​ Joystick ​ Keyboard ​ Mouse ​ VGA Monitor

Correct Answer: You plug a monitor into a three-row, 15-pin port. Incorrect Answers: A joystick uses a two-row, 15-pin port. Keyboards and mice use round, mini-DIN connectors or USB.

Tommy sent a print job to his printer, but then he realized the printer was out of paper. He adds paper, but the print job does not automatically print. He opens the Print queue and sees his print job shows an error. He right-clicks on the print job and a menu appears. What does he need to select in this menu to get the print job on its way to the printer? ​ Start ​ Restart ​ Open ​ Pause

Correct Answer: You would press the Restart option. Incorrect Answers: Neither Open nor Start are valid options for a print job menu. Pause is a valid option, but it simply pauses a print job. It does not restart a print job.

A small office with five computers on a workgroup that are directly connected to a switch is an example of which of the following network topologies? A. Ring B. Bus C. Mesh D. Star

D

Ann, a user, has recently installed a new Blu-Ray ROM in her desktop computer. The computer recognizes the device as a DVD-ROM. Which of the following actions would enable the system to recognize the device as a Blu-Ray device? A. The operating system must be upgraded to Windows Ultimate. B. Flash the system's motherboard CMOS. C. Upgrade to the latest Windows Media Player. D. Install the manufacture's drivers for the OS.

D

ESD mats are useful for protecting against which of the following hazards? A. Chemical burns B. Electromagnetic interference C. RF interference D. Static buildup

D

USB 2.0 and which of the following ports share the same connector? A. Micro USB 2.0 B. Mini USB 2.0 C. Micro USB 3.0 D. USB 3.0

D

Which of the following BEST explains how the data rate is doubled in DDR RAM? A. CPU clock speed is doubled B. Uses 64-bit instead of 32-bit architecture C. Memory clock speed is doubled D. Data transfer on both clock edges

D

Which of the following cable types is used to transmit data from a satellite dish to the satellite modem? A. CAT5e B. CAT3 C. Fiber D. RG-6

D

Which of the following devices transmits data to all ports regardless of final destination? A. Firewall B. Router C. Switch D. Hub

D

Which of the following speeds would a wireless network perform at when the network is built in bridge mode containing 802.11g, 802.11n, and 802.11ac access points? A. 11Mbs B. 54Mbs C. 450Mbs D. 1300Mbs

D

Which of the following would be the MOST important factor to consider when building a virtualization workstation? A. High-end graphics card with onboard memory B. A compact form factor C. Dual monitor support D. Maximum RAM and CPU cores

D

Which of the following devices was the first commercial tablet computer in the marketplace? A. Microsoft Surface Pro B. Tablet PC C. iPad D. GRiDPad

D. Released in 1989, GRiDPad was the first commercial tablet. None of the others were released until at least the year 2000.

You need to configure a mobile client to send encrypted emails. Which standard is used to encrypt and decrypt email messages on mobile devices? A. SSL B. TLS C. IMAPS D. S/MIME

D. Secure/Multipurpose Internet Mail Extensions (S/MIME) is the public key encryption standard used for encrypting and decrypting email. SSL and TLS can encrypt network traffic but not an email message. IMAP is an email protocol, but there is no IMAPS.

The process by which the processor slows down to conserve power is officially called . A. Underclocking B. Cooling C. Disengaging D. Throttling

D. The processor can reduce how fast it's working, which is called throttling, to help conserve battery life. CPUs do not perform underclocking, cooling, or disengaging.

When installing a new point of sale printer, which of the following will you most likely need? ​ RG-58 Drivers ​ Operating system disk ​ RJ-11

Drivers You'll need to install drivers so that the computer can communicate with the printer. Incorrect Answer: RJ-11 is a cable connector for a phone. Operating system disk may have drivers, however it is not likely for it to have a manufacturer specific driver. RG-58 is a coaxial cable for RF connection.

You are setting up a new wireless network at the local brand of your community's public library. Previously, the library only had a small wired network that relied on statically assigned IP addresses. You just finished installing all of the wireless access points. You configured a server to automatically provide an IP address to wireless clients when connecting to one of the wireless access points. To test the new wireless network, you turn on your wireless adapter on your laptop and connect to the network. Your laptop is automatically assigned an IP address of 192.168.1.12 from the DHCP server, and you can ping the default gateway of 192.168.1.1. You open a web browser and attempt to connect to diontraining.com, but you cannot connect and instead receive an error. You attempt to ping the IP address for the Google DNS server (8.8.8.8) and are successful. Which of the following should you attempt to do NEXT to resolve this issue? ​ Disable the Broadcast SSID option for the wireless access point ​ Verify that the DHCP server is properly configured to provide the IP address of a DNS server Enable DHCP inside of your laptop's network adapter settings ​ Disable the Windows Firewall to ensure it isn't blocking your access to the website

Verify that the DHCP server is properly configured to provide the IP address of a DNS server OBJ-5.7: Since you are already connected to the wireless network and can ping the gateway using its IP address, you already know the SSID and DHCP are properly configured (therefore, you should not select these options). It is a poor security practice to disable the firewall, so it is not recommended that you choose this option. Since we cannot access a website using its domain name (diontraining.com), we can successfully ping a remote server using its IP address (8.8.8.8). This indicates that your laptop has not been properly assigned a DNS server to use by the DHCP server. Therefore, you need to verify the DHCP server is properly configured to provide the IP address of a DNS server to the clients when it assigned them their IP address configuration information.

Jason has just returned to his office after vacation and is attempting to access diontraining.com. He receives an error that he cannot connect to the website. He then tries to connect to the company's local intranet server, which he can connect to without any issues. Next, he pings the IP address for diontraining.com and gets a successful connection. Finally, he tries to ping diontraining.com by its domain name, and then he receives an error. Which of the following commands should Jason enter NEXT to try and resolve this issue ​ ipconfig /release ​ ipconfig /renew ​ ipconfig /all ​ ipconfig /flushdns

ipconfig /flushdns OBJ-5.7: Whenever you have an issue where you can ping the server's IP, but you cannot access it by its domain name, it has something to do with DNS. While you may not have learned the IPCONFIG command yet (you will when you study for the 220-1002 exam), you should recognize DNS's keyword as the solution to this problem based on your studies for the 220-1001 exam.

You are troubleshooting a computer that will not boot. After gathering information from the client about the symptoms they have experienced, you believe the power supply may be faulty. You used a power supply tester to determine if the power supply provides the right amount of output voltage and has determined the power supply is only providing 50% of the voltage that it is supposed to provide to the workstation. What is the next step you should perform according to the CompTIA troubleshooting methodology? ​ Establish a theory of probable cause (question the obvious) ​ Establish a plan of action to resolve the problem and then implement the solution ​ Verify full system functionality and, if applicable, implement preventative measures ​ Identify the problem

​ Establish a plan of action to resolve the problem and then implement the solution OBJ-5.1: After testing your theory, you will move into the "establish an action plan to resolve the problem and implement the solution" step of the troubleshooting methodology. For the exam, you must be able to list and identify the 6 steps of the CompTIA troubleshooting methodology in order. (1) Identify the problem. (2) Establish a theory of probable cause (question the obvious). (3) Test the theory to determine the cause. (4) Establish a plan of action to resolve the problem and then implement the solution. (5) Verify full system functionality and, if applicable, implement preventative measures. (6) Document findings, actions, and outcomes.

A company has a printer that currently has network access. They would like the group of users to be able to access the printer. Which of the following connection types is the BEST to achieve the access? ​ Ethernet ​ USB ​ Serial ​ eSATA

​ Ethernet Correct Answer: Ethernet networking can easily provide device sharing and it is currently configured with their network. Incorrect Answers: Serial cabling could work, but the printer already has network access. USB cabling could work, but the printer already has network access. eSata is not a valid connection for a printer.

What is likely to be reset during standard printer maintenance? ​ Paper and tray settings Print job cache Job queue ​ Page count

​ Paper and tray settings Correct Answer: Printer maintenance might have the effect of resetting the printer's paper and tray settings. Incorrect Answers: None of the other answers are reset by standard printer maintenance.

You are troubleshooting a laptop that was just recently diagnosed with trouble holding power. When you turn the laptop on to troubleshoot, you notice that even while connected to the AC power adapter, the laptop will still use battery power. What could be causing something like this to happen? (Choose two.) ​ The power adapter that plugs into the wall is malfunctioning ​ You have selected a power scheme in your OS that disables charging ​ The LCD's power inverter is malfunctioning ​ The battery is incompatible with the laptop ​ The internal power circuity on the motherboard is faulty

​ The power adapter that plugs into the wall is malfunctioning The internal power circuity on the motherboard is faulty Correct Answers: The internal power circuity and the power adapter are the two pieces to this mystery that need to be checked out. Either one could be at fault, or worse... both! Incorrect Answers: If the LCD's power inverter was malfunctionng, we would have a working laptop, we just wouldn't see anything on the laptop's screen. There is no power scheme in your OS that will disable battery charging. The battery being incompatible with system is unlikely. Laptops always come with a battery when purchased. Batteries are also very proprietary to the unit they are meant for.

What component is in charge of powering an LCD screen? ​ Backlight ​ PCMCIA card ​ PCIe card ​ Inverter

Inverter The inverter provides power to an LCD screen. Incorrect Answers: PCMCIA cards are used as expansion slots on laptops. Backlights are also powered by the inverter. PCIe is a type of expansion slot, and has nothing to do with powering LCD screens.

What does the "chassis intrusion detection" BIOS option do? ​ It triggers a system shutdown and locks the drives. ​ It logs that the chassis (case) has been opened. ​ It sends an e-mail to the system administrator. ​ It triggers an alarm.

It logs that the chassis (case) has been opened. Correct Answer: It logs that the chassis (case) has been opened. Incorrect Answers: The other answers are not anything the BIOS is capable of doing on a system

Your cellular carrier allows you to turn on a feature on your smartphone so that you can share its internet connection with other devices close to your smartphone. If you wanted to share the Internet connection with multiple devices simultaneously, which feature would you enable? ​ Mobile hotspot ​ Tethering ​ NFC ​ Bluetooth

Mobile hotspot OBJ-1.5: A mobile hotspot can share that connection via Wi-Fi with nearby laptops, tablets, game consoles, or anything that can connect to a Wi-Fi network. This feature turns your smartphone into a Wi-Fi access point and then allows the other devices to connect to your smartphone and gain access to the internet. Tethering is another good option for this question, but tethering only supports a single device sharing the smartphone's internet connection at once. Tethering can be achieved using a wired connection over USB, NFC, or a Bluetooth connection.

Which of the following is NOT a common laptop battery technology? ​ Ni-MH ​ Lithium Ion ​ Ni-CD ​ Na-Cl

Na-Cl Na-Cl is not a battery technology; it is the chemical composition of sodium chloride, or ordinary table salt. Incorrect Answers: Ni-CD, Ni-MH, and Lithium Ion are all laptop battery technologies.

You have been asked to install a network cable to run a television signal between two buildings. Which of the following cable types should you choose? ​ Plenum ​ Fiber ​ Coaxial ​ Shielded

OBJ-3.1: A coaxial cable is a cable used to transmit video, communications, and audio. A coaxial or coax cable is most commonly used as a cable to connect a TV to a cable TV service. However, these cables are also used in networks and can support a broadband cable internet connection using a cable modem.

Which of the following connector types is MOST appropriate to use to connect a SOHO cable modem to the ISP? A. DB-9 B. RJ-45 C. RG-59 D. RS-232

RG-59 is the most correct solution. Cable Internet providers use transport solutions such as DOCSIS to provide data over coaxial cable to an outside network segment. RJ-45 is inappropriate because it is used to terminate Ethernet, and we are connecting to an ISP, which is often greater than 100m away from the end user. DB-9 is a 9-pin serial termination designated under RS-232.

While any form of electronic communication suffers from some amount of latency, which of the following technologies is particularly notorious for this problem? ​ Satellite ​ POTS ​ SDSL ​ 1000BaseT

Satellite Satellite. Geo-stationary satellites orbit at 22000 miles above the earth. The physical distance makes latency an inherent issue for satellite communication. Incorrect: Neither 1000BaseT, SDSL, or even good old POTS suffers from as much latency as satellite. Latency - Time it takes for a bit to travel from its sender to its receiver.

A small workgroup inherits a second-hand printer without networking capabilities. Which of the following is the BEST method of sharing this resource among the workgroup? ​ Use the onboard Infrared port to share the printer ​ Set up the printer on a user's workstation and share the device. ​ Use a Bluetooth adapter to share the printer with users. ​ Use a parallel switch box to share the printer.

Set up the printer on a user's workstation and share the device. Correct Answer: Setting the printer on a currently networked system, and sharing the device is the best solution. Incorrect Answers: Infrared ports require both devices have the technology present and have limitations with line of sight. Bluetooth technology require that both devices have the technology present, and they have limitations with distance. A parallel switch box would require cabling and switching the device each time a user wishes to print.

Which device is connected to the motherboard with a 24-pin block connector? A. HDD B. SSD C. RAM D. PSU

D. The power supply unit (PSU) is connected to the motherboard with a 24-pin block connector.

After restoring a laptop to factory settings, a client can no longer use the touchpad on it. A technician verifies the system state was fully restored from the most recent, fully working backup. Which of the following should the technician check for NEXT using the fewest number of steps? A. System Restore B. Installed USB mouse C. Updated drivers D. Function key toggle

D. Function key toggle

Which device operates at layer 1? A. Router B. Switch C. Bridge D. Hub

D. Hubs operate at layer 1. Switches and bridges operate at layer 2. Routers operate at layer 3.

A user is concerned about security after setting up wireless communications on his tablet. Which wireless communication method has an operational range of about 1 meter and a viewing angle of about 30 degrees? A. Wi-Fi B. Bluetooth C. NFC D. IR

D. Infrared has an operational range of about 1 meter. Near field communication (NFC) has a maximum range of about 10 centimeters. Wi-Fi depends on the standard, but it usually has a range of 30 meters or more. Bluetooth Class 2 devices can operate at about 10 meters.

What kind of drive reads CompactFlash storage? AƆUSB flash drive BƆCard reader CƆHDD DƆSSD

B. A card reader reads from a variety of flash memory cards, including CompactFlash. All other drive types listed contain their own storage and do not accept cards.

What are visual anomalies that appear on the screen called? A. Pixels B. Artifacts C. Cells D. Dead spots

B. Artifacts are visual anomalies that appear on the screen. They might be pieces of images left over from a previous image or a "tear in the image" (it looks like the image is divided into two parts and the parts don't line up).

You want to upgrade your computer to give it a faster boot time and more space for your files. What should you purchase? A. RAM B. HDD C. SSD D. CPU

C. A solid-state drive (SSD) will provide faster bootup times than a conventional hard disk drive (HDD). Neither RAM nor CPUs provide storage space.

Which of the following is a type of fiber connector? A. RJ-11 B. F-connector C. BNC D. ST

D

A user comes to work and turns on their computer. During startup they receive a "SMART error." Which of the following devices will cause this message to appear? ​ Power Supply ​ CD-ROM ​ Hard Drive ​ Video Card

Hard Drive SMART is a BIOS based check for your hard drive. If it detects errors in one of its hard drive tests, your system will show a SMART error. Incorrect Answers: SMART is an interface between BIOS and the hard drive. It does not work with any other hardware.

Which of the following devices allows you to plug multiple PCs (usually servers) into the device and to switch easily back and forth from system to system using the same mouse, monitor, and keyboard? A. KVM B. NVRAM C. CMOS D. CHS

A. A keyboard, video, and mouse (KVM) device allows you to plug multiple PCs (usually servers) into the device and to switch easily back and forth from system to system using the same mouse, monitor, and keyboard. The KVM is actually a switch that all the systems plug into. There is usually no software to install. Just turn off all the systems, plug them all into the switch and turn them back on; then you can switch from one to another using the same keyboard, monitor, and mouse device connected to the KVM switch. CMOS is a battery type found on motherboards, and CHS is a drive geometry concept. NVRAM is memory that does not lose its content when power is lost to the machine.

Which of the following uses two ports? A. FTP B. SSH C. Telnet D. POP3

A. FTP uses ports 20 and 21. POP3 uses port 110, SSH uses port 22, and Telnet uses port 23.

Which of the following display interfaces is equivalent to DisplayPort with PCIe added in? A. Thunderbolt B. HDMI C. DVI D. VGA

A. Intel and Apple collaborated on Thunderbolt to add PCIe to VESA's DisplayPort and to make the resulting interface smaller and less expensive to connect. HDMI, DVI, and VGA are not equivalent to DisplayPort with PCIe added in.

An older laptop does not have Wi-Fi capability but has some rectangular slots on its side. Which of the following is the port that would take a Wi-Fi card in this laptop? A. SODIMM B. PCMCIA C. SD D. Compact flash

B PCMCIA refers to the association and standards body. A PC card slot is an expansion slot often found in notebook computers that allows for the easy and quick addition of a host of different devices

A technician is building a custom gaming computer. Which of the following is the FASTEST memory the technician can use? A. DDR2 CAS7 B. DDR3 CAS9 C. DDR3 CAS10 D. DDR3 CAS11

B The lower the CAS, the faster the RAM—and consequently, the more expensive. When deciding between RAM of different clock speeds, the RAM with the higher clock speed is superior; but when choosing between RAM of identical clock speeds, the RAM with lower CAS latency is faster.

Which of the following network cable types has the longest range? A. CAT5e B. Single-mode fiber C. Multi-mode fiber D. CAT6

B The single mode optical fiber is the best choice for transmitting data over long distances such as 100 km (60 miles) for its low signal attenuation caused by the single light mode. Multimode fiber has a larger core and is recommended for fiber runs less than 400 m (1300 feet). The grade of multimode fiber affects its distance and bandwidth capabilities. Multimode systems are generally less expensive.

Which of the following protocols would be used for file sharing between MAC OS and Windows OS workstations on a LAN? A. IMAP B. SMB C. SSH D. RDP

B Port 445

Which of the following RAID types uses a drive mirroring algorithm? (Select TWO). A. RAID 0 B. RAID 1 C. RAID 5 D. RAID 6 E. RAID 10

B, E

Which of the following connector types can be used to connect a laptop to a docking station or port replicator? (Choose two.) A. Lightning B. Thunderbolt C. RJ45 D. Molex E. DB9 F. USB-C

B, F

One of the users on your network needs to travel, and she wants to work on the airplane. Which laptop accessory will allow her to power her laptop from the airplane? A. AC adapter B. DC adapter C. Battery converter D. Airplane mode

B. A DC adapter converts the DC output from a car or airplane accessory power plug into the DC voltages required by your laptop. An AC adapter is used with standard wall electrical outlets. There is no battery converter. Airplane mode shuts off all wireless communications.

Which of the following system types does not benefit from video enhancements? A. CAD/CAM design workstation B. Network-attached storage device C. A/V editing workstation D. Gaming PC

B. CAD/CAM design workstations, A/V editing workstations, and gaming PCs can all benefit from video enhancements. A NAS does not benefit from enhanced video and might not use a monitor at all.

Which of the following is the minimum category cable that supports 1000Mbps speed? A. Cat 3 B. Cat 5e C. Cat 6 D. Cat 6e

B. Cat 5e

user creates a file in presentation software to be shown on a widescreen display. The user would like to adjust the aspect ratio of the slides in the presentation software so they display without extra black areas on the top, bottom, left, or right of the slides. Which of the following aspect ratios would BEST meet this requirement? A. 4:3 B. 5:4 C. 16:9 D. 256:135

C

The display on a laptop computer is continuously flickering. Which of the following are most likely to cause this problem? (Choose two.) A. A failing display B. Interference from a nearby fan C. A failing backlight D. A failing inverter E. Incorrect video driver

C, D. Perpetually dim or flickering screens are most likely caused by a failing backlight or inverter, which supplies power to the backlight. LCD devices are not subject to interference from fans. An incorrect video driver will not cause a flickering image.

Which of the following are standard AMD processor socket types? (Select TWO). A. 1366 B. 1155 C. 940 D. LGA E. F

C, E

A user wants her laptop to have a full-sized optical drive and external hard drive. Which of the following accessories is most likely to have full-sized bays for these devices? A. Laptop base B. Port replicator C. Docking station D. Mini PCIe dock

C. A docking station is a device that a laptop can be plugged into that replicates common laptop ports, and may also have full-sized bays for PC desktop expansion cards and storage devices, such as hard drives and optical drives. A port replicator will replicate laptop ports but does not usually have expansion bays. There is no specific laptop base accessory or a Mini PCIe dock. (Mini PCIe is an internal laptop technology.)

What level of QoS is designated for interactive voice and video? A. 1 B. 4 C. 5 D. 6

C. QoS level 5 is designated for interactive voice and video, with less than 100ms delay. Level 1 is for background applications and is low priority. Level 4 is known as controlled load, which is lower priority than interactive voice and video. Level 6 only has 10ms latency but is reserved for control traffic.

A small office in a remote area is considering a new ISP.Which of the following broadband types is based on the distance to the nearest central office? A. Satellite B. Fiber C. Cable D. DSL

D. DSL

You need to provide users with memory cards that hold enough data for their needs. How much data can a microSDXC memory card hold? A. 4 GB B. 32 GB C. 128 GB D. 2 TB

D. MicroSDXC cards can hold up to 2 TB. SDHC cards can hold up to 32 GB, and standard SD cards can hold up to 4 GB.

Which TCP/IP protocol uses port 80? A. HTTP B. HTTPS C. Telnet D. POP3

A. HTTP uses port 80. HTTPS uses port 443; Telnet uses port 23; and POP3 uses port 110.

At what speed will latency on a magnetic drive decrease to about 3 ms? A. 5400 rpm B. 7200 rpm C. 10,000 rpm D. 15,000 rpm

C. At 10,000 rpm, the latency will decrease to about 3 ms. Data transfer rates also generally go up with a higher rotational speed but are influenced by the density of the disk (the number of tracks and sectors present in a given area). Latency at 5400 rpm will be 5.56 ms. At 7200 it will be 4.17, and at 15000 it will drop to 2.

You have been asked to install a new hard drive for a client. Which of the following is not a consideration when installing an internal storage device? A. You should match the form factor of the drive or adapt it to an available drive bay or slot. B. You should secure the drive with at least two screws on one side and preferably two on each side. C. Due to the high revolutions at which modern hard drives spin, you must secure an external power source because the internal power supplies do not have the capacity. D. You need to be sure that the routing of the drive's data cable, if applicable, does not obstruct the engineered flow of air across internal components.

C. Today's hard drives, regardless of their rpm, have standard internal power connections. The other options are valid concerns when installing an internal drive.

Which of the following connectors provides the fastest speed? A. DVI B. USB C. RJ-45 D. Thunderbolt

D. Thunderbolt 40 Gbps

Your company has decided to begin moving some of its data into the cloud. Currently, your company's network consists of both on-premise storage and some cloud-based storage. Which of the following types of clouds is your company currently using? ​ Community ​ Public ​ Private ​ Hybrid

OBJ-4.1: A hybrid cloud is a cloud computing environment that uses a mix of on-premises, private cloud, and third-party public cloud services with orchestration between these platforms.

Dion Training has asked you to consult on the installation of their new file server. The current server consists of a RAID 5 array with three 1 TB 7200 RPM hard disk drives. Due to increase reliance on the new file server, you have been asked to recommend a RAID solution that will help ensure there is no unscheduled downtime, no data loss, and increase speed/performance over the current file server. Based on these requirements, which of the following RAID solutions should you recommend? ​ RAID 5 ​ RAID 1 ​ RAID 0 ​ RAID 10

RAID 10 OBJ-3.4: A RAID 10 is the best solution to meet all of these requirements since it provides a fully redundant RAID with both mirroring and speed/performance advantages. RAID 5 provides redundancy, but it will not improve the speed/performance over the current file server in use since it was also a RAID 5. RAID 0 and RAID 1 can provide mirroring (redundancy) or speed/performance, but not both.

John is a small business owner who is always running between meetings. He wants to buy a device that will let him quickly and easily see his email notifications, view his instant messages and chats, and keep in touch with his executive assistant who is back at the office. Which device would BEST meet John's needs? ​ Smartwatch ​ Portable hotspot ​ Fitness monitor ​ eReader

Smartwatch OBJ-1.4: A high-end smartwatch (for example, an Apple Watch) will allow the user to see their notifications, chat activity, and even make phone calls. A mid-range or low-end smartwatch can still have the ability to read your chat and notifications, but you may be unable to make phone calls from it.

James has replaced the CPU and added some RAM to his PC. He also blew some of the dust out of his system using canned air. When he rebooted his system, an annoying repetitive beep occurred. What was wrong? ​ The beep indicates a problem with his new CPU. ​ The beep indicates a RAM problem. ​ The beep indicates that he blew dust up into the power supply. ​ The beep indicates that his hard drive is dying.

The beep indicates a RAM problem. Correct Answer: A repetitive beep suggests a RAM problem. Incorrect Answers: Each motherboard manufacturer has their own beep codes, but only the RAM beep code is continuous.

A technician, trying to upgrade the RAM in a laptop, opens the bottom of the case to discover that there is only one RAM slot when there are supposed to be two. Where might the other slot be? ​ Under the keyboard ​ Inside the display bezel ​ Above the PC card slot Second hard drive bay

Under the keyboard Laptops sometimes hide the second RAM slot under the keyboard. Incorrect Answers: The other locations usually do not hide a RAM slots.

What component can you not typically upgrade on a laptop? ​ Video card ​ Wireless card ​ RAM ​ Hard drive

Video card It's not possible to upgrade video cards in most laptops. Incorrect Answers: You can upgrade hard drives, RAM, or wireless cards in most laptops.

A technician is responsible for setting up laptops in a room for a small conference. The laptops need to communicate with each other as well as a workstation in the room. The workstation has a wireless expansion card. A switch is not available for the laptops and they cannot access the corporate network. Which of the following does the technician need to implement? A. Adhoc network B. Bluetooth network C. Serial network D. USB network

A

A technician receives a call that a clients PC is not booting after a recent test of the buildings back-up generators. When the technician arrives, it is discovered that, once powered on, there is no output display or POST beep codes. Furthermore, after 15 seconds, the systems fans begin running much louder and faster.Which of the following is the MOST likely issue? A. The motherboard was damaged by the power test. B. The PC's RAM was affected by ESD. C. The power supply was damaged and is nonfunctional. D. The hard drive was erased due to the power test.

A

A technician works for a company that has virtual servers and virtual desktops. The company hires a user who only needs to access the virtual desktops. Which of the following is the MOST cost-effective workstation to purchase? A. Thin client B. Gaming PC C. CAD PC D. Thick client

A

A user has 6,250 Megabytes worth of pictures they would like to back up. At the very MINIMUM, which of the following could backup these pictures to a single medium? A. DL DVD Burner B. LTO Drive C. CD Burner D. Blu-Ray Burner

A

A user has a CAD / CAM workstation that is to be reconfigured into a Gaming PC. Which of the following would be the EASIEST and MOST effective upgrade? A. Add better Sound Card B. Install a TV Tuner C. Add additional L2 cache D. Install USB 3.0 Card

A

You just bought a new Virtual Reality headset to use with your computer. To ensure your computer is ready to support the new VR games, which of the following should you install? ​ A dedicated graphics card A Bluetooth adapter ​ A RAID 5 array ​ A larger hard drive

A dedicated graphics card OBJ-1.4: Virtual Reality (VR) requires a fast processor, lots of memory, and, most importantly, a dedicated graphics card. To support lag-free virtual reality and reduce headaches/eye pain, you need to ensure you have a high-end dedicated graphics card or GPU in your system.

You are training a class of new technicians on troubleshooting motherboard issues. Which of the following are issues most likely caused by a failing CMOS battery? (Choose two.) A. BIOS time and setting resets B. Attempts to boot to the incorrect device C. Intermittent device failure D. BSOD/pinwheel errors

A, B. When the system is powered off, BIOS settings on a motherboard are maintained by the CMOS battery. If the battery fails, the system will likely forget the BIOS time and date settings and the boot order configuration. Replacing the CMOS battery will resolve the issue.

You have just installed a wireless router on your home network. Which of the following should you do to make it highly secure? (Choose all that apply.) A. Change the default administrator name and password. B. Change the SSID. C. Enable WEP. D. Configure it to channel 11

A, B. You should always change the default administrator name and password as well as the default SSID when installing a new wireless router. Enabling encryption is also a good idea, but WPA and WPA2 are better options than WEP. The channel has nothing to do with security.

What are the output voltages that have been commonly produced by PC power supplies over the years? (Choose five.) A. +3.3VDC B. -3.3VDC C. +5VDC D. -5VDC E. +12VDC F. -12VDC G. +110VDC H. -110VDC

A, C, D, E, F. A PC's power supply produces +3.3VDC, +5VDC, -5VDC, +12VDC, and -12VDC from a 110VAC input.

Which of the following operates in the 5.0 GHz range? A. 802.11a B. 802.11b C. 802.11g D. 802.11

A. 802.11a operates in the 5.0 GHz range. The other standards all operate in the 2.4 GHz range.

When installing a floppy drive data cable, it is important for a technician to ensure which of the following? (Select TWO). A. Availability of compatible power connectors B. Adequate hard drive capacity C. Correct CPU clock speeds D. Correct Master/Slave jumper settings E. Proper orientation of the data cable

A. Availability of compatible power connectors E. Proper orientation of the data cable

How many devices can you attach to a single serial ATA controller? ​ 2 ​ 64 ​ 1 ​ 8

1 Correct Answer: Only one drive device can connect to a single SATA controller. Incorrect Answers: The other answers just aren't true, and are incorrect.

A technician is installing a new TV tuner on a Windows 7 HTPC and no channels are showing up. Which of the following is the MOST likely cause? A. The TV cable is connected to the FM/AM input. B. The TV tuner card does not support HD channels. C. The TV tuner card is not properly seated. D. The cable signal is too weak.

A. The TV cable is connected to the FM/AM input

Which of the following uses would not require a custom configuration for a PC? A. A computer running Windows 10 with 1 TB of data and 250 GB of applications installed B. A computer running Windows IoT C. A design computer used to drive a lathe that makes automotive rims D. A computer to replace a Blu-ray player and DVR

A. The Windows 10 computer can be built as a normal system with a 2 TB or 3 TB drive. Windows IoT typically runs on a thin client. A type of CAD/CAM workstation capable of CNC would be used to create automotive wheel rims. A NAS is an ideal choice to take the place of both the Blu-ray player and DVR.

Which is not an advantage of solid-state drives? A. Cheaper B. Not as susceptible to damage C. Faster D. No moving parts

A. The advantage of solid-state drives is that they are not as susceptible to damage if the device is dropped, and they are, generally speaking, faster as no moving parts are involved. They are, however, more expensive, and when they fail they don't generally give some advance symptoms like a magnetic drive will do.

What is the light in the device that powers the LCD screen? A. Backlight B. Inverter C. Charger D. Reflector

A. The backlight is the light in the device that powers the LCD screen. It can go bad over time and need to be replaced, and it can also be held captive by the inverter. The inverter takes the DC power the laptop is providing and boosts it up to AC to run the backlight. If the inverter goes bad, you can replace it on most models (it's cheaper than the backlight).

What software controls how the printer processes the print job? A. Driver B. Interface C. Network D. Line

A. When you install a printer driver for the printer you are using, it allows the computer to print to that printer correctly (assuming you have the correct interface configured between the computer and printer). Also, keep in mind that drivers are specific to the operating system, so you need to select the one that is both for the correct printer and for the correct operating system.

Which operating system uses the Pinwheel of Death as a proprietary screen crash? A. Apple B. LINUX C. Windows D. UNIX

A. While Microsoft users have the BSOD to deal with, Apple users have also come to have the same negative feelings about the Pinwheel of Death. This is a multicolored pinwheel mouse pointer.

A technician has replaced the NIC in a computer running Windows XP Professional and has properly installed the device driver. The computer indicates the card has network connectivity, but the technician is unable to access the Internet. Which of the following should the technician do NEXT to finish the NIC installation? A. Change the computer and DNS server's IP addresses in the Action Center B. Use ipconfig to check the current settings and Network Connections to make changes C. Assign the NIC an APIPA address using ipconfig and the network setup wizard D. Reboot the computer and configure the necessary network settings in the BIOS

B

A technician is dispatched to install additional RAM in a computer. The technician unplugs the system from the power source, and removes the cover of the PC.Which of the following should the technician do NEXT? A. Update the BIOS for compatibility. B. Put on an ESD strap. C. Use an ant-static bag to hold the RAM while installing. D. Clean out the PC with compressed air.

B

A technician just installed an antivirus suite on a workstation. It is kept up-to-date and has recently scanned the system. A day later the user reports slower response times than usual. Which of the following is the user MOST likely experiencing? A. Advertisements B. Resource consumption C. A trojan infection D. Unremoved viruses

B

A technician needs to configure a computer system for MAXIMUM safety of stored data while staying cost effective. Which of the following RAID levels should be used? A. RAID 0 B. RAID 1 C. RAID 3 D. RAID 5

B

A user attempts to turn on a computer and receives no response. The user calls the technician to report the computer is not booting and a faint smell of something burning. Which of the following tools will BEST help to identify the issue? A. ESD strap B. PSU tester C. Cable tester D. Loopback plug

B

A user has lost connection to the Internet, but can still browse locally shared folders. Which of the following connections is MOST likely down? A. SAN B. WAN C. LAN D. PAN

B

A user is reporting toner smudging on paper after printing. Which of the following should the technician inspect? A. Print spooler B. Fuser C. Rollers D. Maintenance kit

B

Laser printers and thermal printers both use a heating element to function. Which of the following differentiates them? A. Laser printers require a liquid pigment. B. Thermal printers use device specific stock. C. Laser printers do not require thermal toner. D. Thermal printers utilize refillable heat toner.

B

Which of the following is the MAXIMUM number of 10Mb audio files that a user can store on a CD- RW? A. 50 B. 70 C. 100 D. 120 Hide Solution

B

Which of the following is the standard sequence of wire color in a RJ-11 phone line? A. Green, Black, Yellow, Red B. Black, Red, Green, Yellow C. Yellow, Black, Red, Green D. Red, Black, Green, Yellow

B

Which of the following is the subnet mask for a Class A IP address? A. 127.0.0.1 B. 255.0.0.0 C. 255.255.255.0 D. 255.255.255.254

B

Which of the following printer types requires calibration to ensure the nozzle is adjusted to print properly? A. Impact B. Inkjet C. Laser D. Thermal

B

Which of the following standards is an expansion card slot used only for graphics? A. PCIe B. AGP C. PCI D. miniPCI

B

A technician arrives in Germany and discovers that when their PC is plugged into the outlet, no power is received. Which of the following actions should the technician take to get the PC to operate? A. Change the BIOS settings to the local time B. Adjust the voltage selector switch C. Attach a 220-volt power strip from the current region to the PC D. Attach a 120-volt battery backup power supply to the PC

B

A technician has been asked to identify the unknown network addresses from a series of printers attached to the network via external hardware printer servers.Which of the following will provide the technician with the necessary information? A. Performing a device self test print page from each printer B. Performing a device print page from each print server C. Performing a device factory reset on each print server D. Performing a PING of each device address without the FQDN

B

A technician has just installed a new SOHO router. There are four people sharing the Internet connection, and whenever one specific user comes online and begins streaming media, browsing slows down for the other users. Which of the following settings can the technician adjust so the experience is universal for all users? A. DSL B. QoS C. VNC D. WAN

B

Which of the following are universally common items that are synced between a mobile device and a larger computer? (Choose all that apply.) A. Office documents B. Contacts C. Operating system files D. Email E. Configuration settings F. Apps

B, D, F. Contacts, email, and apps are commonly synchronized, along with pictures, music, videos, calendars, bookmarks, documents, location data, social media data, e-books, and passwords.

Which of the following wireless IEEE standards operate on the 2.4 GHz radio frequency and are directly compatible with each other? (Choose two.) A. 802.11a B. 802.11b C. 802.11ac D. 802.11g

B, D. Both 802.11b and 802.11g operate in the 2.4 GHz range and use similar transmission standards. Many devices on the market are listed as 802.11b/g, meaning they will work with either system. Alternatively, 802.11a and 802.11ac operate in the 5 GHz range.

You are installing a new video card that has an HDMI port. Which of the following is true about HDMI cables? (Choose all that apply.) A. They can transmit analog or digital signals. B. They can transmit audio as well as video. C. They are not used to connect to projectors. D. They can use HDMI or mini-HDMI connectors.

B, D. HDMI cables transmit digital video and audio signals. They can be used to connect to projectors or monitors. HDMI cables can have standard HDMI connectors, mini-HDMI connectors, or micro-HDMI connectors.

A technician is preparing to perform a processor upgrade on a critical company server. Which of the following precautions should be taken FIRST before performing such work on a system? (Select TWO). A. Discharge all capacitors inside the PSU B. Remove all jewelry C. Ensure the PSU is plugged into a grounded electrical socket D. Ensure humidity levels within the room are lowered E. Put on an anti-static wrist strap

B, E

Peter is configuring a NAS. Which of the following should be his least-important priority to include in his NAS? A. File sharing B. Maximum RAM C. Gigabit NIC D. Media streaming E. RAID array

B. A NAS should support file sharing and media streaming, and have a Gigabit NIC card and a RAID array. Additional RAM in a NAS offers no advantage for the performance of the NAS past a certain point. The tasks the NAS is asked to perform do not require high performance.

Which of the following hypervisors runs within a conventional operating system? A. Type I B. Type II C. Type III D. Container-based

B. A Type II hypervisor runs within a conventional operating system environment. With the hypervisor layer as a distinct second software level, guest operating systems run at the third level above the hardware. Container-based is a different approach to virtualization that holds instances in containers. There is no Type III.

What is an advantage of using a homegroup? A. Higher security level B. Easier folder and printer sharing C. Makes router use less power D. Faster file transfer

B. A homegroup simplifies folder and printer sharing. It does not change the security level, the router power, or the file transfer speed.

A gaming PC has been built from components. The system is getting power but there is no video on the display. Which of the following is the MOST likely cause of the issue? A. The display is defective and needs to be replaced. B. The SATA controller is disabled in the BIOS. C. The PCIe 6-pin power cable is not connected to the high-end video card. D. The CPU is not powerful enough to provide adequate speed to the system.

C

A machine receives an IP address starting with 169.254.x.x when which of the following occurs? A. When the machine is using IPv6 B. When the next IP range begins with 169.253 C. When the DHCP server does not respond D. When the operating system is Unix or Linux

C

A technician needs to run a diagnostic DVD on a laptop running Windows 8.1. After setting the boot order in the UEFI BIOS to the internal DVD-RW drive, the laptop still boots into Windows. Which of the following settings needs to be adjusted in order for the laptop to boot from the DVD-RW drive? A. TPM B. Virtualization C. Secure boot D. UEFI BIOS password

C Secure Boot It prevents unauthorized software from being booted

A customer needs to run several virtual machines on their design workstation to work on cross platform software. Which of the following should be maximized to improve workstation performance? (Select TWO) A. Cooling fans B. RAM C. Number of CPU cores D. Storage space E. PCIe slots

C, B

Which of the following external ports would a technician use to connect a keyboard? (Select TWO). A. eSATA B. IEEE 1394 C. USB D. PS/2 E. VGA

C, D

Which types of printers are referred to as page printers because they receive their print job instructions one page at a time? (Choose two.) A. Daisy-wheel B. Dot-matrix C. Inkjet D. Laser E. Thermal

C, D. A page printer is a type of computer printer that prints a page at a time. Common types of page printers are the laser printer and the inkjet printer.

Which of the following devices work with MAC addresses to determine what to do with network traffic? (Choose two.) A. Hub B. Router C. Bridge D. Switch

C, D. Bridges and switches are Layer 2 devices; therefore, they work with hardware (MAC) addresses. Hubs operate at Layer 1 and deal with bits, and routers operate at Layer 3 and work with logical IP addresses.

A desktop computer is experiencing continuous reboots. It gets to the BIOS screen and then reboots every time. Which two components are most likely to cause this problem? (Choose two.) A. Power supply B. RAM C. CPU D. Motherboard

C, D. Continuous reboots are most likely caused by the motherboard or CPU failing. It's possible it's the RAM, but less likely. The power supply is the least likely cause of the problem in this scenario.

Which of the following connector types is typically not associated with hard drive use? A. USB-C B. eSATA C. DB-9 D. SCSI

C. DB-9 connectors are most often used with serial cables and are not associated with hard drives. USB-C, eSATA, and SCSI are examples of connectors used with hard drives.

You need to replace defective DDR4 memory in a laptop. How many pins will the replacement memory module have? A. 200 B. 204 C. 260 D. 288

C. DDR4 SODIMMs have 260 pins. DDR2 SODIMMs have 200 pins, and DDR3 SODIMMs have 204 pins. No SODIMMs currently have 288 pins, but DDR4 DIMMs do.

Which type of server provides automatic IP configurations? A. HTTP B. DNS C. DHCP D. SQL

C. DHCP servers provide automatic IP configurations. DNS servers resolve IP addresses to hostnames. HTTP servers are web servers. SQL is a database server.

A user complains that his 2-in-1 laptop screen does not properly detect where he places his finger on the screen. What should you do first to resolve the issue? A. Replace the touch screen. B. Replace the touchpad. C. Recalibrate the touch screen. D. Recalibrate the touchpad. E. Degauss the touch screen. F. Degauss the touchpad.

C. If the touch screen is not responding properly, the first step is to recalibrate it. If it continues to have problems, the screen may be defective and might need to be replaced. Degaussing is a process used on old CRT monitors and is not relevant to touch screens.

You have set up a wireless router on your network and configured it to use AES. What configuration option do you need to choose on the client computers? A. WEP B. WPA C. WPA2 D. TKIP

C. If your router is using AES, the clients will need to use WPA2. TKIP is a protocol utilized by WPA. WEP is the weakest of the encryption options.

In 2004, the ATX 12V 2.0 (now 2.03) standard was passed, changing the main connector from 20 pins to how many? A. 16 B. 22 C. 24 D. 28

C. In 2004, the ATX 12V 2.0 (now 2.03) standard was passed, changing the main connector from 20 pins to 24. The additional pins provide +3.3V, +5V, and +12V (the fourth pin is a ground) for use by PCIe cards. When a 24-pin connector is used, there is no need for the optional four- or six-pin auxiliary power connectors.

In what mode of plug and play must the laptop be turned off and back on for the change to be recognized? A. Hot docking B. Warm docking C. Cold docking D. Open docking

C. In cold docking, the laptop must be turned off and back on for the change to be recognized. In warm docking, the laptop must be put in and out of suspended mode for the change to be recognized. In hot docking, the change can be made and is recognized while running normal operations.

Which of the following indicates that the toner cartridge is just about empty? A. Black spots B. Streaks C. Faded prints D. Garbled output

C. In laser printers, faded output usually indicates that the toner cartridge is just about empty. You can usually remove it, shake it, and replace it and then get a bit more life out of it before it is completely empty, but it is a signal that you are near the end.

Which GPS component is responsible for triangulation? A. Satellites B. Ground control network C. Receiver D. All three combined

C. It's the receiver's job to perform triangulation to determine its position based on data received from the satellites. Satellites send signals to the GPS receiver to help it determine its location. The ground control network monitors the status of the satellites and signal strength.

You believe that a network card is beginning to fail. Which of the following tools should you use to see if the network card is capable of sending and receiving data from an RJ-45 port? A. Tone generator and probe B. Loopback plug C. Multimeter D. Cable tester

B. A loopback plug is used to test the ability of a network adapter to send and receive. The plug gets plugged into the NIC, and then a loopback test is performed using troubleshooting software. A tone generator and probe is used to trace a cable. Multimeters test for electrical issues. Cable testers are for verifying that a cable works properly.

You install a new NIC for a user, and he asks what it does. Which of the following best characterizes the functions of this device? A. Multimedia B. Communications C. Input/Output D. Storage

B. A network interface card (NIC) is used as a communications device. It enables the computer to talk to other computers on a network. It does not provide multimedia, input/ output (such as a USB port does), or storage capabilities.

What printer component turns the printed sheet over so it can be run back through the printer and allow printing on both sides? A. Driver B. Duplexer C. Orientation D. Collator

B. An optional component that can be added to printers (usually laser but also inkjet) is a duplexer. This can be an optional assembly added to the printer, or built into it, but the sole purpose of duplexing is to turn the printed sheet over so it can be run back through the printer and allow printing on both sides.

Your goal is to build the fastest computer possible. Which of the following hard drive technologies should you choose for the fastest read performance? A. M.2 PCIe B. M.2 SATA C. NVMe PCIe D. NVMe SATA

C. M.2 and NVMe are both relatively new SSD options, and both are incredibly fast. NVMe is slightly faster, though. SATA is limited to 600 MBps transfer speeds, whereas PCIe is not. An NVMe PCIe card can sustain data read rates of about 3,500 MBps.

Which of the following is the most common input method for mobile devices? A. Stylus B. Resistive touch screen C. Capacitive touch screen D. Keyboard and mouse

C. Most mobile devices today use capacitive touch screens, which allow the user to use their finger as an input device. Resistive touch screens sense pressure, and a stylus is commonly used with them. Keyboards and mice are too large for most mobile devices.

Of the following voltage pairings, which one accurately represents the input and output, respectively, of power supplies and AC adapters? A. AC in, AC out B. DC in, DC out C. AC in, DC out D. DC in, AC out

C. Power supplies and AC adapters use standard wall outlets for an input of AC voltage, which they convert to the DC voltages required by the components to which they supply power.

Which of the following describes the job of an inverter in a laptop? A. It changes the screen orientation when the laptop is rotated. B. It converts AC power into DC power for the display backlight. C. It converts DC power into AC power for the display backlight. D. It allows the laptop display to function in tablet mode.

C. The laptop power supply converts AC power into DC power for the laptop's internal circuitry. The display backlight, if used, needs AC power. The inverter's job is to convert (invert) the DC power into AC power for the backlight.

You turn a computer on and it doesn't boot up properly. You hear a rhythmic ticking sound coming from inside the case. What is most likely the problem? A. The motherboard B. The power supply fan C. The HDD D. The video card

C. The only components that make noise are the ones that have moving parts, such as fans and conventional hard disk drives. In most cases, a rhythmic ticking sound will be something that's generated by a conventional hard disk drive (HDD).

You have been asked to configure a client-side virtualization solution with three guest OSs. Each one needs Internet access. How should you configure the solution in the most cost effective way? A. Three physical NICs B. One physical NIC, three virtual NICs, and one virtual switch C. One physical NIC, one virtual NIC, and three virtual switches D. One physical NIC, three virtual NICs, and three virtual switches

B. Each virtual machine will use its own virtual NIC. The virtual NICs will communicate with a virtual switch managed by the hypervisor. The virtual switch will communicate with the physical NIC.

Transmitting at 10 Gbps, how far can signals on an MMF cable travel? A. 100 meters B. 550 meters C. 1 kilometer D. 40 kilometers

B. Multimode fiber (MMF) can transmit up to 550 meters, depending on the Ethernet specification. Other standards using MMF can transmit only up to 300 meters. If you need to transmit up to 40 kilometers, you will need to use single-mode fiber (SMF).

Which of the following is memory that does not lose its content when power is lost to the machine? A. UEFI B. NVRAM C. CMOS D. CHS

B. NVRAM is memory that does not lose its content when power is lost to the machine. Unified Extensible Firmware Interface (UEFI) is a standard firmware interface for PCs, designed to replace BIOS. CMOS is a battery type found on motherboards, and CHS is a drive geometry concept.

You boot up a Windows 10 desktop computer. The Windows splash screen flashes briefly, and then there is no display. What is the best next step to take to troubleshoot the issue? A. Replace the failed monitor. B. Replace the failed video card. C. Reboot and enable low-resolution video mode. D. Try a second monitor.

C. If the system will not boot past the Windows splash screen, odds are that there is an issue with the video resolution, video driver, or video card. Enable low-resolution video mode and begin troubleshooting from there. A second monitor won't help, and it's not yet time to replace any components.

You need to prepare a new replacement hard drive for storage. What is the first step needed to get it ready? A. Format the drive. B. Install an OS. C. Install a file system. D. Create a partition.

D. Create a partition. D. Before the hard drive can be used for file storage, it needs at least one partition. Once it's partitioned, you can format the drive, which will install a file system.

Your friend discovered a joystick in a box of his brother's items in the attic. What type of connector might this joystick have? (Choose two.) A. PS/2 B. USB C. RS-232 D. DA15

D. DA15 B, D. Joysticks today typically have USB connections. Older joysticks might have plugged into a game port, which was a 15-pin connector called a DA15.

A system board has six slots for memory chips, aligned in two banks. Which of the following is the optimal memory configuration this board supports? A. Multi Mode B. Dual Channel C. Triple Channel D. Single Channel

C. Triple Channel

A company is concerned about the security of sensitive data on a laptop a user frequently takes off-site.Which of the following enables hardware encryption to secure user data? A. BIOS password B. Hibernation mode C. Trusted Platform Module D. Screen-saver lock

C. Trusted Platform Module

Which cable type comes in two varieties: unshielded and shielded? A. Fiber optic B. Coaxial C. Twisted pair D. Serial

C. Twisted pair is commonly used in office settings to connect workstations to hubs or switches. It comes in two varieties: unshielded (UTP) and shielded (STP). Fiber optic, serial, and coaxial do not come in shielded and unshielded versions.

What is the most secure wireless encryption standard for 802.11 networks? A. WEP B. WPA C. WPA2 D. SAFER+

C. WEP was the original encryption standard developed for Wi-Fi networks, but it is easily hacked. WPA is an upgrade, but WPA2 is more secure and incorporates the entire 802.11i standard. SAFER+ is used to encrypt Bluetooth communications.

A Windows user complains that her computer keeps crashing. What is the proprietary crash screen she is most likely seeing? A. Stop sign B. Pinwheel C. BSOD D. Black screen

C. When Windows-based systems crash, as can happen due to a memory, CPU, or motherboard problem, they will most likely display a Blue Screen of Death (BSOD). The good news is that the BSOD can often provide useful information, such as an error code, to help troubleshoot the problem. There is no stop sign proprietary crash screen, and the pinwheel is used in macOS and OS X. A black screen may indicate a system crash but is not proprietary to one operating system.

Which of the following is a PC that has all the capabilities of a standard PC? A. Thin client B. Standard client C. Thick client D. Thin host

C. When discussing thin and thick clients, you should understand that a thick client is a PC that has all the capabilities of a standard PC. It runs all applications locally from its own hard drive. A thin client is one that has minimal capabilities and runs the applications (and perhaps even the operating system itself) from a remote server. There is no standard client or thin host.

When purchasing a projector, which of the following is the most important characteristic to consider? A. Aspect ratio B. Maximum resolution C. Lumens D. Native resolution

C. When evaluating a projector, understand how many lumens it produces. You need to ensure that it will be bright enough for the environment in which it will be used. Most projectors can support multiple aspect ratios and resolutions.

You have been asked to advise a group of several universities that want to combine research efforts and store data in the cloud. Which type of cloud solution might be best for them? A. Public B. Private C. Community D. Hybrid

C. When multiple organizations with similar objectives want to combine efforts in a cloud, the best choice is generally a community cloud. This allows for the flexibility and scalability normally found in a public cloud, but it also limits the number of users to a smaller, trusted group.

Which of the following technology converts light into digital information? ​ Microphone ​ Webcam ​ Inverter ​ Digitizer

Correct Answer: The webcam converts light into digital information. Incorrect Answers: Microphones convert waves to digital information. Digitizers convert analog information to digital information. An inverter converts electrical current.

John's client needs to connect an external monitor to his laptop. Which connection types is the laptop most likely to have to accomplish this goal? (Select TWO). ​ HDMI ​ Serial ​ VGA ​ RCA ​ PS/2

Correct answers: Most laptops have a VGA port. Many new ones also have an HDMI port. Incorrect answers: PS/2 ports enable you to connect a keyboard or pointing device (like a mouse) to a computer. Serial ports are ancient and were used to connect mice. RCA jacks are for audio, not video.

A technician is installing a wireless router to be used as an access point. The company firewall will assign IP addresses to devices on the wireless network. Which of the following settings does the technician need to disable on the wireless router to accomplish this? A. NAT B. DMZ C. PAT D. DHCP

D

A technician is working on a laptop with a failed Ethernet port caused by ESD. Which of the following is the simplest solution to restore network connectivity? A. Re-solder the network connector B. Replace the Ethernet daughter board C. Update the Ethernet driver D. Enable wireless and connect to the WAP

D

Which of the following refers to how the printed matter is laid out on the page? A. Driver B. Duplex C. Orientation D. Collate

C. The orientation of a document refers to how the printed matter is laid out on the page. In the landscape orientation, the printing is written across the paper turned on its long side, while in portrait the paper is turned up vertically and printed top to bottom. The driver is the software that talks between the printer and the operating system. Duplexing makes it possible to print on both sides. To collate is to create multiple copies with all sets in correct page order.

Which of the following allows you to perform the most complete restart of the computer without removing power? A. Start ➢ Restart B. Start ➢ Hibernate C. Reset button D. Power button

C. The reset button causes the computer to return to nearly the same point it is in when you power it on, but without the need for power cycling. Using Restart in the Start menu does not reboot as deeply as the reset button. Hibernation is a power state that completely removes power after saving the contents of RAM to the hard drive; pressing the power button is required to resume the session in the same manner as starting the computer after a complete shutdown. The power button cannot be used as a method of restarting the system.

You are using the best practice methodology to troubleshoot a printer. During which phase of the methodology should you use external research based on the symptoms? A. Identify the problem. B. Establish a plan of action to resolve the problem. C. Establish a theory of probable cause. D. Implement preventive measures.

C. The second step in the best practice methodology is to establish a theory of probable cause (question the obvious). As part of that, if necessary, conduct external or internal research based on symptoms.

You are choosing a flash standard for a client. They want the smallest flash cards possible. Which standard should you recommend? A. SD B. CompactFlash C. microSD D. miniSD E. xD

C. The smallest of the options is microSD, at 15 mm Å~ 11 mm. Perhaps "micro" gives it away, but that also makes it easy to remember. SD cards are 32 mm Å~ 24 mm. CompactFlash cards are the largest, at 36 mm Å~ 43 mm. MiniSD cards measure at 21.5 mm Å~ 20 mm, and xD cards are 20 mm Å~ 25 mm.

A user has downloaded an image file and needs to install an application from the image. When trying to execute or open the file, an error is displayed. Which of the following should the user perform? A. Download a different file from the website B. Rename the extension of the file to a known extension C. Verify the MD5 hash of the downloaded file D. Mount the file as an emulated DVD

D Mount the file is the best option Although MD5 was initially designed to be used as a cryptographic hash function, it has been found to suffer from extensive vulnerabilities

Which of the following operates at a maximum of 2 MB? A. 802.11a B. 802.11b C. 802.11g D. 802.11

D. 802.11a and 802.11g have a maximum rate of 54 MB, 802.11b has a maximum of 11 MB, and 802.11 has a maximum of 2 MB.

Which type of server is a database server? A. HTTP B. DNS C. DHCP D. SQL

D. A SQL server is a database server. DNS servers resolve IP addresses to hostnames. HTTP servers are web servers. DHCP servers provide automatic IP configurations.

Which of the following is typically not a cause of system lockups? A. Memory issues B. Virus C. Video driver D. Bad NIC driver

D. A bad NIC driver would cause the NIC not to work but would not cause a system lockup.

Which of the following would BEST describe the capabilities of a 64-bit operating system? A. Capable of managing dual NICs. B. Capable of effectively managing 1TB SSD. C. Capable of managing more than 4 displays. D. Capable of utilizing 128GB RAM.

D. Capable of utilizing 128GB RAM. While a 64-bit Windows 8 computer can support 128GB of RAM, chances are it does not have enough RAM DIMM slots to hold enough memory modules to hit that limitation. A computer would need 16 DIMM slots to handle enough 8GB modules or 8 DIMM slots to handle enough 16GB modules to hit the limitation.

A laser multi-function device in an office is able to scan documents, but users are reporting that when they try to make copies they receive an error. Which of the following troubleshooting steps should a technician try FIRST? A. Apply a new preventative maintenance kit. B. Ensure the MFD is connected and on the network. C. Replace all empty ink cartridges in the MFD. D. Check the toner level to see if it is low.

D. Check the toner level to see if it is low.

__________________________ is immune to electromagnetic or radio-frequency interference. A. Twisted-pair cabling B. CSMA/CD C. Broadband coaxial cabling D. Fiber-optic cabling

D. Companies that want to ensure the safety and integrity of their data should use fiber-optic cable because it is not affected by electromagnetic or radio-frequency interference. Even though some copper cables have shielding, they are not immune to EMI or RFI. This eliminates twisted-pair and coaxial. CSMA/CD is an access method, not a cable type.

A user on your network wants to be able to draw images on a screen and have the laptop capture them. What type of device needs to be installed on his laptop? A. Inverter B. Capturer C. Digitizer D. Touchpad

C. The user needs a digitizer, which takes input from the device, such as drawn images, and converts them into electronic images on the computer. The user could also use a touch screen for the same purpose. An inverter changes DC power into AC power for a display backlight. There is no capturer laptop device. A touchpad is a pointing device that allows a user to control the mouse cursor.

You are installing a single 802.11g wireless network. The office space is large enough that you need three WAPs. What channels should you configure the WAPs on to avoid communication issues? A. 2, 5, and 7 B. 1, 8, and 14 C. 1, 6, and 11 D. 3, 6, and 9

C. There are 14 communication channels in the 2.4 GHz range, but only the first 11 are configurable. The three non-overlapping channels are 1, 6, and 11.

Which RAM type allows for two memory accesses for each rising and falling clock? A. DIMM B. SODIMM C. DDR3 D. DDR2

D. DDR SDRAM is Double Data Rate 2 (DDR2). This allows for two memory accesses for each rising and falling clock and effectively doubles the speed of DDR. DDR2-667 chips work with speeds at 667 MHz and are also referred to as PC2-5300 modules. DDR3 is the higher-speed successor to DDR and DDR2. Portable computers (notebooks and subnotebooks) require smaller sticks of RAM because of their smaller size. One of the two types is small outline DIMM (SODIMM), which can have 72, 144, or 200 pins

Which step in the laser printer printing process occurs immediately after the exposing phase? A. Charging B. Fusing C. Transferring D. Developing

D. Developing happens after exposing. The correct order is processing, charging, exposing, developing, transferring, fusing, and cleaning.

Which type of printers can be used with multipart forms? A. Inkjet printers B. Laser printers C. Thermal printers D. Dot-matrix printers

D. Dot-matrix printers are impact printers and therefore can be used with multipart forms. Daisy-wheel printers can be used with multipart forms as well.

You find out that a disgruntled ex-employee's computer has a boot password that must be entered before the operating system is ever loaded. There is also a password preventing your access to the BIOS utility. Which of the following motherboard components can most likely be used to return the computer to a state that will allow you to boot the system without knowing the password? A. Cable header B. Power reset connector C. Toggle switch D. Jumper

D. Most motherboards have a jumper or similar momentary closure mechanism that will allow you to clear the CMOS memory of any user settings and cause the BIOS to use factory defaults, including no user or supervisor passwords.

Which of the following is the use of physical factors of authentication? A. Mutual authentication B. SSO C. Multifactor authentication D. Biometrics

D. Mutual authentication is a process whereby not only does the server verify the credential of the client but the client also verifies the credential of the server. It adds additional security to the process. Single sign-on is a service that allows users to sign in once and have access to all resources. Multifactor authentication makes use of multiple factors of authentication to increase security. Biometrics is the use of physical factors of authentication.

Which of the following is the name of the protocol used to transmit data in NFC peer-to-peer mode? A. NDEF B. NFCP C. LLCP D. SNEP

D. NFC uses Simple NDEF Exchange Protocol (SNEP) in peer-to-peer mode. It's based on LLCP (Logical Link Control Protocol).

Which service allows users with private IP addresses to access the Internet using a public IP address? A. DHCP B. DNS C. DMZ D. NAT

D. Network Address Translation (NAT) allows users to have a private IP address and still access the Internet with a public IP address. NAT is installed on a router and translates the private IP address into a public address for the user to access the Internet. DHCP assigns IP configuration information to clients. DNS resolves hostnames to IP addresses. A DMZ is an area on a network between an external router and an internal router.

Which of these is an ad hoc network? AƆPATA BƆNAS CƆRAID DƆDirect link with crossover cable

D. One kind of ad hoc network is a direct connection between two PCs using a crossover cable. PATA is a technology for an internal local hard drive connection. NAS is network-attached storage. RAID combines multiple hard disks into a single logical pool of storage.

Which of the following is a form of ad hoc WLAN? A. WAN B. MAN C. PAN D. WMN

D. Wireless mesh networks (WMN) are a form of an ad hoc WLAN that often consist of mesh clients, mesh routers, and gateways. A personal area network (PAN) is a LAN created by personal devices. A wide area network (WAN) is a collection of two or more LANs, typically connected by routers and dedicated leased lines. Occasionally, a WAN will be referenced as a metropolitan area network (MAN) when it is confined to a certain geographic area, such as a university campus or city.

Your company uses a virtual desktop infrastructure (VDI) environment for employees to access their desktop applications. To allow employees access to the VDI environment, the company is installing thin clients in each employee's office. Which THREE of the following tasks must you first complete to install a thin client for a new employee? ​ Install the necessary applications ​ Install the latest security updates ​ Connect the thin client to the network ​ Install the operating system ​ Connect the device to a monitor ​ Connect the thin client to a printer

Install the necessary applications ​ Install the latest security updates ​ Connect the thin client to the network OBJ-4.2: A thin client is a stateless, fanless desktop terminal that has no hard drive. All features typically found on the desktop PC, including applications, sensitive data, memory, etc., are stored back in the data center when using a thin client, most typically in a VDI or other environment. To set up a thin client, you will first connect it to the network, update its security software, and then install/configure any applications needed to access the VDI environment.

Which of the following is an IPv6 broadcast address? A. ::1 B. FE80:: C. FF00:: D. ::FFFF E. None of the above

E. IPv6 does not have broadcasts. IPv6 does have multicasts, which are a bit like targeted broadcasts. FF00:: is the first part of a multicast address.

A new laptop manufacturer wants to create the thinnest and lightest laptops in the world. To do this, they need to choose the right technology for their displays. Which technology would allow for the thinnest laptop displays? ​ LED ​ OLED ​ IPS ​ LCD

Explanation OBJ-1.2: An OLED display works without a backlight because it emits visible light. Thus, it can display deep black levels and be thinner and lighter than a liquid crystal display (LCD). In low ambient light conditions (such as a dark room), an OLED screen can achieve a higher contrast ratio than an LCD, regardless of whether the LCD uses cold cathode fluorescent lamps or an LED backlight.

As a PC Technician, you are on the road most of the day and use a laptop. When you get back to your office at the end of the day, you want to be able to quickly connect a larger external monitor, keyboard, and mouse to your laptop through a single USB port to perform additional work on the larger screen. Which type of device should you choose to provide all the functionality above? ​ Docking station ​ Port replicator ​ Thunderbolt ​ USB 4-port hub

Explanation OBJ-1.3: A port replicator is a device used to connect multiple peripherals to a laptop quickly. The monitor, printer, network, keyboard, and mouse are permanently plugged into the port replicator, connecting to the laptop via the USB port. A docking station provides additional capability to a laptop and further expansion of its capabilities. For example, a docking station can provide power, external monitor connections, additional storage, and even CD/DVD drives in them. A USB 4-port hub will only provide USB expansion (which doesn't support a monitor by default) and is therefore not a possible right answer to this question.

You are running a new CAT 6 network for an office building. You have run out of connectors for the cables and have sent your assistant to the store to buy some more. Unfortunately, your assistant is brand new and doesn't know which type to purchase. Which of the following connectors does your assistant need to purchase for you to terminate the new CAT 6 cables being installed? ​ BNC ​ RJ-11 ​ RG-6 ​ RJ-45

Explanation OBJ-2.7: An RJ-45 connector is usually used to terminate an Ethernet cable. Coaxial cables are normally terminated using an RG-59 connector but can also use an RG-6 connector. A BNC connector is an older connector used in old coaxial data networks like 10BASE2 and 10BASE5 networks. RJ-11 connectors are used to terminate phone lines and cables.

Which type of internet connection allows for high-speed bi-directional data communication over a hybrid fiber-coaxial (HFC) connection? ​ ISDN ​ Fiber ​ DSL ​ Cable

OBJ-2.7: A cable modem is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fiber-coaxial (HFC), radio frequency over glass (RFoG), and coaxial cable infrastructure. Cable modems are primarily used to deliver broadband internet access as cable internet, taking advantage of an HFC and RFoG network's high bandwidth.

A user calls telling you the printer is prompting for "Load Legal" but the user has no interest in printing on legal paper. What should you do? ​ Tell the user to restart the printer. ​ Direct the user to a true letter-sized printer on the network. ​ Tell the user to load some legal paper anyway. ​ Show the user how to set the print job for letter paper.

Show the user how to set the print job for letter paper. Correct Answer: The user is configuring their application to print on legal paper. Show them how to set it up to request letter paper. Incorrect Answers: The other answers will not solve the problem

A user complains of a discoloration of the screen on their monitor after leaving their system on during vacation. This is an example of: ​ dead backlight ​ burn in ​ ESD ​ dead pixels ​ EMI

burn in (Correct) ​ Correct Answer: Burn in on a monitor is a permanent discoloration of areas caused by prolonged display of an image that does not move. It creates a permanent ghost like image of the object. Screen savers were a common preventative solution to burn in. Incorrect Answers: A dead backlight will not cause discoloration. ESD does not cause discoloration on the screen. Dead pixels will show small areas with no image display. EMI would only cause temporary display interference, it would not leave a discoloration.

Under outdoor conditions, the 802.11g standard supports data throughput of up to _______________ and has a range of up to _______________. ​ 54 Mbps / 140 meters ​ 54 Mbps / 250 meters ​ 11 Mbps / 120 meters ​ 11 Mbps / 140 meters

​ 54 Mbps / 140 meters Correct Answer: Under ideal, outdoor conditions, the 802.11g standard supports data throughput of up to 54 Mbps and has a range of up to 140 meters. Incorrect Answers: 802.11b has a data throughput of 11 Mbps at 140 meters. 802.11a has a data throughput of 54 Mbps at 120 meters. 802.11n has a data throught of 150+ Mbps at 250 meters.

Both CD and DVD drive speeds are based on multiples of the original CD-ROM drive speed. What is that speed? ​ 150 MBps ​ 100 MBps ​ 150 KBps ​ 100 KBps

150 KBps Correct Answer: The original CD-ROM drive speed was 150 KBps. Incorrect Answers: 100 MBps was the maximum data transfer rate of ATA-6. 150 MBps is the maximum throughput of the 1.5Gb variety of SATA drives. 100 KBps is meaningless and made up.

A user is trying to use an external hard drive with an incompatible file system. Which of the following tools will allow the user to change the file system on the hard drive? A. format B. defrag C. bootrec D. chkdsk

A

Which of the following allows for audio and video connections using a single cable? A. HDMI B. Parallel C. DVI-A D. eSATA

A

In a mobile device, which of the following are examples of RTOSs? (Choose two.) A. SIM OS B. Baseband OS C. iOS D. Android

A, B. The two real-time OSs (RTOSs) that mobile phones have are the baseband OS and the SIM OS. iOS and Android are not RTOSs.

Which of the following protocols uses TCP port 23? A. Telnet B. SSH C. FTP D. DNS

A. Telnet uses port 23. SSH uses port 22; FTP uses ports 20 and 21; and DNS uses port 53.

A user is noticing fine black particles on printouts and in the printer itself. Which of the following tools is recommended to fix this issue? A. Denatured alcohol B. Toner vacuum C. Compressed air D. Moist towel

B

A user is reporting that a desktop computer with a RAID 1 array is running slowly. Upon performing a reboot, the technician sees S.M.A.R.T. errors during boot up.Which of the following tools would the technician use FIRST to troubleshoot the errors? A. diskpart B. chkdsk C. format D. clean

B

Which of the following helps law enforcement show accountability for evidence as it was gathered? A. Drive hashing B. Chain of custody C. Drive image creation D. Court subpoena

B

When shopping for a SOHO router, look for the latest available standard, which is: A. 802.11b B. 802.11ac C. 802.11n D. 802.11g

B. 802.11ac B. 802.11ac is the latest wireless standard. The others, from oldest to newest, are 802.11b, 802.11g, and 802.11n.

A technician is installing new hard drives into a server and needs to set IDs to numbers ranging from 0-15. Which of the following types of drives is the technician installing? A. SATA B. SCSI C. USB D. EIDE

B. SCSI

You have been asked to configure a network for a small office. The wireless router is installed, and now you need to connect the client computers. What do you enter on the client computers to connect to the router? A. The administrator password B. The security passphrase C. The client's MAC address D. The default router password

B. To join the network, client computers need to find the SSID, ensure that the security settings are correct (to match the router), and enter the security passphrase. As an administrator, you should have configured this passphrase to be different from the router's administrator password.

Which of these is an external storage connection? AƆePATA BƆeSATA CƆPATA DƆSATA

B. eSATA is external serial ATA. SATA and PATA are internal. There is no such thing as ePATA.

When you print documents on your laser printer, you see residue from previous images on the output. Which two things are the most likely causes of this problem? (Choose two.) A. A faulty transfer corona wire B. An overheating printer C. A bad erasure lamp D. A broken cleaning blade

C, D. Seeing images from previous print jobs is a phenomenon called ghosting (or ghost images). It's most likely due to a bad erasure lamp or a broken cleaning blade. If the transfer corona wire were faulty, there would likely be blank pages. An overheating printer will not necessarily leave residue behind.

You support an old impact printer at work. When the printer prints, there is always a blank horizontal line in the middle of each line of output. What is the most likely cause of the problem? A. The print ribbon is old and needs to be replaced. B. The print ribbon is not advancing properly. C. The print head needs to be replaced. D. The wrong print driver is installed.

C. If there is a consistent blank space, it likely means that a pin is not firing properly and the print head needs to be replaced. If the print ribbon were old, you would have consistently faded printing. If the ribbon were not advancing properly, you would get light and dark printing. If the wrong driver were installed, you would get garbage.C

A technician who has been troubleshooting a computer tells you that the system is having problems with overheating. Which component is most likely to cause this issue? A. Power supply B. Motherboard C. CPU D. RAM

C. The processor runs the hottest of all computer components and is the most likely to overheat. Motherboards and RAM don't generate a lot of heat. Power supplies most often have fans to help dissipate heat, and don't run as hot as CPUs.

You need to pair two Bluetooth devices with each other. Which of the following is true regarding Bluetooth pairing? A. Bluetooth connections support wireless device control but not file transfers. B. Bluetooth is not yet a fully standardized protocol. C. Bluetooth connections do not reach as far as Wi-Fi connections. D. You must reboot the paired devices to complete the connection.

C. The range of Bluetooth connections is considered short compared to Wi-Fi connections. Bluetooth is a fully standardized protocol that supports file transfers using FTP. Rebooting, or even restarting, paired devices is not a requirement for Bluetooth connections.

Which interface is natively found only in Apple devices? A. USB B. Serial C. Thunderbolt D. PS/2

C. Thunderbolt ports are most likely to be found on Apple laptops, although they are now showing up on others as well. USB ports are typically found on all mobile devices, while Serial and PS/2 connecters are rarely found on mobile devices.

Janice calls the tech support line and reports that she can't hear any music from her computer. She says she was able to listen fine last week. Which of the following should you check? (Select two.) ​ Check that the sound card driver is installed correctly ​ Verify the PC has enough hard disk space ​ Ensure the SPDIF driver is up to date Check to see if the speakers are on the Hardware Compatiblity List ​ Check to see if the speakers are muted

Check that the sound card driver is installed correctly Check to see if the speakers are muted Correct Answers: Check to see if she has muted the sound or the speakers. Also, check to see if the sound driver is installed correctly. Incorrect Answers: Speakers won't be on any Hardware Compatibility List from Microsoft. The sound card might be, though. There really isn't anything called a SPDIF driver. Not having enough hard drive space won't effect the ability to play sound. It will, however, inhibit your ability to download music and videos that have sound.

Which of the following authentication protocols is unique to DSL? ​ WPA ​ PPP ​ PPPoE ​ VPN

Correct Answer: DSL connections use the PPPoE (Point to Point Protocol over Ethernet) authentication protocol. Incorrect Answers: Dial-up networking uses the PPP (Point to Point) protocol. WPA is a wireless encryption standard. VPN uses authentication and encryption, but not PPPoE.

Which of the following connectors can be used for video, audio, and storage devices? A. DVI B. DisplayPort C. HDMI D. Thunderbolt

D

Which of the following devices requires 3.3V of power from the motherboard? A. SLI Video Card B. DVD-ROM Drive C. USB Port D. Serial Port Card

D

Which of the following is a standard Intel processor socket type? A. F B. 754 C. 940 D. LGA

D 940 and F are used by AMD

You have discovered a fix for a broken laptop. Before implementing changes, what should you consider, according to the best practice methodology? A. The user's budget B. Company reputation C. Upgrade feasibility D. Corporate policies

D. According to the best practice methodology, you should always consider corporate policies, procedures, and impacts before implementing changes. The user's budget, company reputation, and upgrade feasibility are not mentioned in the best practice methodology to resolve problems.

You are installing a new power supply in a desktop computer. Which of the following statements about power supplies is true? A. You must make sure that the voltage selector switch on the back of the power supply is switched to the lower setting if the computer is going to be used in Europe. B. SATA hard drives most often use the same type of power connector that PATA hard drives use. C. Power supplies supply power to ATX-based motherboards with connectors known commonly as P8 and P9. D. Power supplies convert AC input to DC output.

D. PC power supplies accept alternating current (AC) as input and produce direct current (DC) for the internal components. Europe requires the voltage selector switch be set at the higher setting. SATA drives most often use a specific power connector that is not compatible with the Molex connector used by PATA drives. Legacy AT-based motherboards called for P8 and P9 connectors; ATX motherboards have a newer 20- or 24-pin single power connector.

Which of the following connector types is an MFF connector? A. BNC B. ST C. SC D. LC

D. The local connector (LC) is a mini form factor (MFF) fiber-optic connector developed by Lucent Technologies. If it helps, think of LC as "Little Connector."

What type of device should be placed in a DMZ? ​ Smartphone ​ Backup server ​ Wireless printer ​ Gaming server

Gaming server Correct Answer: When setting up a gaming server, it's important to make it as easy as possible for others to connect. Putting the server in a DMZ does this. Incorrect Answers: A backup server contains private information, so you want it as protected as possible. A smartphone also contains private information, so you don't want it Internet accessible. You don't want anyone from the Internet using your wireless printer! Don't put it in a DMZ.

Which of the listed network devices can only broadcast data? ​ Switch ​ Router ​ Hub ​ Firewall

Hub Correct Answer: Hubs are only capable of sending out broadcast traffic. Incorrect Answers: Firewalls keep unwanted data packets away from a network or system. Routers connect two networks together. Switches are interconnectivity devices that are capable of sending packets to the computers that they're addresses to.

Which of the following devices is MOST commonly used by a user to provide input to their workstation to launch a program or perform file manipulations? ​ Monitor ​ Mouse ​ DVD drive ​ Webcam

Mouse OBJ-3.6: Most operating systems are now GUI-based (graphical user interface) operating systems. They rely primarily on a mouse to launch programs and perform file manipulations (like copying, moving, and deleting). While a touchscreen monitor may perform these types of functions, not all monitors are touchscreen. For the exam, if it doesn't specify that a monitor is a touchscreen in the question or answers, assume it is a regular monitor used for output only. A webcam and DVD drive can be used as input devices, but they are not primarily for launching applications or manipulating files.

If a port on a network switch does not have anything plugged into it, what should the link lights on the port look like? ​ Steady flashing ​ Link Speed flashing ​ No lights Rapid, erratic flashing

No lights Link lights either on a NIC or in a switch should never be lit when not connected. Incorrect Answers: If the lights were lit in any way without anything plugged in, that would indicate a defective port.

You are working on your laptop, and the image on the display suddenly becomes very dark and hard to see. You attempt to adjust the brightness and contrast of the laptop's display using the special function keys, but this doesn't really brighten the display much. You pull out a bright flashlight and can see the image displayed a little better when using it. Which of the following components is MOST likely faulty and needs to be replaced? ​ GPU ​ LCD panel ​ Digitizer ​ Inverter

OBJ-1.2: The inverter (also known as inverter board, screen inverter, or LCD inverter) is a part of the laptop's display assembly. The inverter is a small green board attached to the base of the LCD panel. In a laptop computer, the LCD screen relies on a backlight source to uniformly light up the screen, and the inverter acts as the power supply for this lighting source. If the inverter is faulty, the display will be too dim to easily see without an external light source like a flashlight.

Your friend just noticed his smartphone's battery is running low. Unfortunately, your friend isn't very knowledgeable about computers and smartphones, so he doesn't know what type of charging cable he needs. He knows his phone is running iOS 12. What kind of cable does your friend need to charge his phone? ​ Micro USB ​ Lightning ​ Mini USB ​ USB-C

OBJ-1.5: Lightning cables are used by Apple's iPhone, which are the only smartphones that can run the iOS software. Since your friend is using iOS, he uses an iPhone (smartphone) or an iPad (tablet). Lightning is a proprietary computer bus and power connector created by Apple. The lightning cable is used by iPhone 5, 6, SE, 7, 8, and X series.

Which of the following ports should you block at the firewall if you want to prevent a remote login to a server from occurring? ​ 80 ​ 21 ​ 143 ​ 22

OBJ-2.1: Port 22 is used for SSH, which administrators use to securely connect remotely to a server and issue commands via a command-line interface. Port 21 is used by FTP, port 80 is used by HTTP, and port 143 is used by IMAP.

What type of connector is most commonly used to terminate an Ethernet cable? ​ RG-59 ​ RJ-45 ​ DB-9 ​ RG-6

OBJ-3.2: An RJ-45 connector is usually used to terminate an Ethernet cable. Coaxial cables are normally terminated using an RG-59 connector but can also use an RG-6 connector. A DB-9 is usually used to terminate an RS-232 connection on a serial cable.

Which of the following types of connectors are used to terminate a coaxial cable for your cable modem? ​ RJ-11 ​ RG-6 ​ DB-9 ​ RJ-45

OBJ-3.2: Both RG-6 and RG-59 are used for coaxial cable connections. RG-6 is recommended for your Cable TV, satellite, TV antennas, or broadband internet. RG-59 is generally better for most CCTV systems and other analog video signals.

Which of the following devices is MOST commonly used by a user to provide input to their workstation? ​ Webcam ​ CD-ROM drive ​ Keyboard ​ Monitor

OBJ-3.6: The most common input device used to provide information to your workstation is your keyboard. While a monitor can be used (if it is a touchscreen monitor), this is not commonplace on all workstations. A CD-ROM drive is a type of input device, but it is not used to provide interactive input and commands to a workstation. A webcam is another type of input, but most programs do not take commands through your webcam and instead rely on your keyboard.

You are working as a Managed Service Provider for a large chain of doctor's offices. The company is opening a new office downtown. The office needs 2 computers to be installed at the receptionists' desk to schedule appointments, read email, browse the web, and conduct basic word processing tasks. Which of the following type of computers would BEST meet the needs of this doctor's office? ​ Audio/video editing workstation ​ CAD workstation ​ Touch screen kiosk ​ Thick client

OBJ-3.8: A thick client (also called a fat client) is a computer that will perform the bulk of the data processing in client/server applications on the local computer. There is no need for continuous server communications with thick clients as it is mainly communicating archival storage information to the server. The thick client has an operating system and applications installed directly on its own hard drive. Thick clients are considered a standard workstation in most business environments and can support email, web browsing, word processing, and other basic tasks.

You are working at a Managed Service Provider for a large chain of doctor's offices. The company is opening a new office downtown. It needs 2 computers to be installed at the front desk to allow customers to self-check-in for their appointments and view/edit their personal contact information. Which of the following type of computers would BEST meet the needs of this doctor's office? ​ Touch screen kiosk CAD workstation ​ Thin client ​ Thick client

OBJ-3.8: An touch screen kiosk is a computer terminal featuring specialized hardware and software that provides access to information and applications for communication, commerce, entertainment, or education. These are commonly used for check-in functions at the airport, hotel, and doctor's offices since they do not require a keyboard or mouse to utilize them.

You see some fading across your papers when you are printing things using your office's laser printer. It appears that the black is more faded than the colors on your documents. What is the BEST solution to this problem? ​ Increase the temperature of the fuser element ​ Clean the printer's transfer roller ​ Replace the toner cartridge in the printer ​ Change the feed rate of the paper

Replace the toner cartridge in the printer OBJ-5.6: A symptom of low toner is faded or faint colors in your printed papers. Most modern printers will also indicate the amount of toner left using their on-screen display and present a warning message for low toner and an error message when the printer is completely out of toner.

Tammy's inkjet printer isn't printing one of the colors. She should first try: ​ Soaking the cartridge in naphtha overnight. ​ Replacing the clogged cartridge. Installing a new maintenance kit. ​ Running the maintenance program to clear the clogged jet.

Running the maintenance program to clear the clogged jet. One should always try using the maintenance software first for any problem on an inkjet printer. Incorrect Answers: Maintenance kits are for laser printers. Replacing the cartridge would come after attempting to clear it with the maintenance program. Soaking the cartridge will not fix the issue

Which of the following components must be installed while a laptop is completely powered off? ​ SO-DIMM chip ​ USB expansion hub ​ Express card 54 device ​ PCMCIA device

SO-DIMM chip Correct Answer: To install SO-DIMM RAM chips into a laptop, you must turn the laptop off. Incorrect Answers: PCMCIA cards, Express cards, and USB hubs can all be installed while the laptop is running.

Your son has a gaming laptop in his bedroom. He loves his laptop since it allows him to take it over to his friend's houses when desired, but his laptop only has 1 USB port. When he gets home, though, he prefers to use a USB mouse, keyboard, and webcam when he is playing games on his laptop. He only has $20 saved up but wants to buy a device that would allow him to connect all 3 of these peripherals with one USB connector. Which of the following do you recommend he purchase? ​ Docking Station ​ USB 4-port hub ​ Thunderbolt ​ Port replicator

Since your son has a limited budget of just $20, the best option to meet his needs would be a USB 4-port hub. This would allow him to connect his USB mouse, keyboard, and a webcam to the USB 4-port hub and then connect the USB 4-port hub using a single USB connector to the laptop. A port replicator or docking station may also solve this problem, but they will be more expensive and go beyond your son's minimal needs.

What aspect of a regular vacuum cleaner makes it unsafe to use inside a laser printer? ​ Too much static ​ Too much vibration ​ Too much voltage ​ Too much power

Too much static Correct: Regular vacuum cleaners generate a tremendous amount of static electricity. Incorrect: Too much power, vibration, or voltage would not make the vacuum unsafe inside a laser printer, unless it was powerful enough to start sucking up pieces of the printer itself!

Jason is attending the CompTIA Partner's Summit convention this year. While at the conference, Jason will need to ensure his smartphone has enough battery power to last the entire day without having to recharge it since it is hard to find an available electrical outlet in the conference rooms. Jason needs to ensure his smartphone is always available for use in order to receive updates from his team back home, as well. Which of the following would you recommend Jason use to ensure he can use the phone all day without his smartphone running out of power? ​ Bring a power strip so that more than one person can use an electrical wall outlet ​ Use a wireless charging pad ​ Set the smartphone to airplane mode ​ Use a smartphone case with a built-in battery

Use a smartphone case with a built-in battery OBJ-1.5: To extend the device's battery life and enable Jason to use it continuously throughout the day, it is recommended that he use a smartphone case with a built-in battery. These cases can provide enough battery power for an additional 8-12 hours of use. A wireless charging pad is a bad choice since you cannot easily use the phone while it is on the charger, and the charger still needs a power source (like an outlet). A power strip would also be a poor choice because it assumes there is a wall outlet available. Airplane mode is a bad choice because it may reduce the power needed (and therefore extends the battery life), but it also will prevent any connectivity over the cellular network.

A crossover cable would normally be used in a 100BaseT network to connect __________. ​ a client to a hub ​ a client through a switch to a client. ​ a client through a switch to a server. ​ a computer directly to another computer

a computer directly to another computer You would need a crossover cable if you were creating a direct connection between two computers. Incorrect Answers: You would not use a crossover cable if you were using a switch or hub.

You are setting up a wireless network. Which wireless standards would give the users over 40 Mbps throughput? (Choose all that apply.) A. 802.11ac B. 802.11b C. 802.11g D. 802.11n

A, C, D. Three standards listed—802.11ac (1,300 Mbps), 802.11g (54 Mbps), and 802.11n (600 Mbps)—give users the required throughput.

Which of the following are features that allow 802.11ac to achieve higher data throughput? (Choose two.) A. MIMO B. Beamforming C. Channel bonding D. Code division multiplexing

A, C. The two technologies that 802.11ac employs to achieve high throughput are channel bonding and MIMO. Channel bonding is the combination of multiple smaller channels into one large channel for greater bandwidth. MIMO is enhanced over 802.11n to allow for more multiple inputs and outputs. 802.11ac also uses beamforming, but that helps the range, not the throughput.

Which hypervisor type runs directly on the host's hardware? A. Type I B. Type II C. Hybrid D. Core

A. The hypervisor that manages the distribution of the physical server's resources can be either Type I or Type II. A Type I hypervisor (or native, bare metal) runs directly on the host's hardware to control the hardware and to manage guest operating systems. Type 2 runs on top of an operating system. There is no hybrid or core type.

Which of the following is the connection between the mobile device and the radio? A. PRI B. PRL C. IEMI D. IMSI

A. The product release information (PRI) is the connection between the mobile device and the radio. From time to time this may need updating, which, when done, may add features or increase data speed. The preferred roaming list (PRL) is a list of radio frequencies residing in the memory of some kinds of digital phones. International Mobile Equipment Identification (IMEI) is used to identify a physical phone device, while International Mobile Subscriber Identification (IMSI) is used to identify a Subscriber Identification Module (SIM) card.

You are manually configuring a TCP/IP host. Another administrator gives you the router's IP address. What is the TCP/IP term for this? A. Default gateway B. Subnet mask C. DNS server D. DHCP server

A. The router is your doorway out into other networks, and it is known in TCP/IP terms as the default gateway. Without this configuration option, you would not be able to get to external networks. The subnet mask tells a host which network it's on. The DNS server resolves hostnames to IP addresses, and a DHCP server provides IP configuration information to hosts.

You have been troubleshooting a laptop for an hour and have established a theory of probable cause for the problem. What is the next step you should take? A. Test the theory to determine the cause. B. Document findings, actions, and outcomes. C. Verify full system functionality and implement preventive measures. D. Establish a plan of action to resolve the problem

A. The second step in the best practice methodology to resolve problems is to establish a theory of probable cause, which has been done here. The next step is to test the theory to determine cause. After that, establish a plan of action to resolve the problem, verify full system functionality, and document findings.

Which computer component contains all the circuitry necessary for other components or devices to communicate with one another? A. Motherboard B. CPU C. RAM D. Expansion bus

A. The spine of the computer is the system board, otherwise known as the motherboard. All other computer components plug into the motherboard. On the motherboard, you will find the CPU, underlying circuitry, expansion slots, video components, RAM slots, and various other chips.

In which VDI model are all desktop instances stored in a single server, requiring significant processing power on the server? A. Centralized B. Hosted C. Remote D. Local

A. There are three models for implementing VDI: Centralized model: All desktop instances are stored in a single server, requiring significant processing power on the server. Hosted model: Desktops are maintained by a service provider. This model eliminates capital cost and is instead subject to operation cost. Remote virtual desktops model: An image is copied to the local machine, making a constant network connection unnecessary. There is no local model.

Intel and AMD have integrated which of the following into their Atom and APU processor lines that had not been integrated before? A. GPU B. Math coprocessor C. FSB D. RAM controller

A. These CPUs integrate the graphics processing unit (GPU). The Core i7 before them integrated the memory controller, eliminating the FSB. Math coprocessors have been integrated since the 80486DX.

Which of the following is a standard firmware interface for PCs, designed to replace BIOS? A. UEFI B. NVRAM C. CMOS D. CHS

A. Unified Extensible Firmware Interface (UEFI) is a standard firmware interface for PCs, designed to replace BIOS. NVRAM is RAM that retains its data during a reboot. CMOS is a battery type found on motherboards, and CHS is a drive geometry concept.

When configuring a backup solution for your computer, you decide that speed is the most important factor. Which storage option should you choose? A. Locally attached storage B. Network attached storage C. Cloud storage D. Offline storage

A. When choosing a backup solution, know that locally attached storage devices will always be faster than network storage or cloud-based solutions.

Connectors

A: VGA ■■ B: USB ■■ C: Audio (or 1/8″) ■■ D: HDMI ■■ E: eSATA ■■ F: DisplayPort ■■ G: USB-C ■■ H: Mini-DisplayPort or Thunderbolt

A technician is tasked with selecting components to build a computer that will be used for computer-aided drafting and computer aided modeling. Which of the following components are the BEST choices? (Select TWO). A. Triple channel memory B. MIDI sound card C. Socket 1156 motherboard D. Onboard graphics E. Socket 1366 CPU

AE Socket 1366, also called LGA1366 or Socket B, is a Land Grid Array (LGA) socket used by the latest generation of server-class Intel Core i7

A technician is installing Hyper-V and is getting an error that the software is not able to be installed. Which of the following processor characteristics should be checked? A. Cache size B. Virtualization support C. Number of cores D. Hyperthreading

B

A user reports that a workstation fails to complete boot up and repeats a series of two beeps over and over. The user states that the workstation had been displaying BSOD errors after running multiple applications. Which of the following is the MOST likely cause? A. Video adapter failure B. Memory failure C. Power supply failure D. CPU failure

B

After setting up a new computer, a user states that the mouse and keyboard will not work. Which of the following is the MOST likely reason? A. The network cable is disconnected B. The PS/2 connectors are switched C. The USB connectors are switched D. The hard drive is unplugged

B

Joe, a technician, is tasked to install a new client machine. He notices the machine is not getting any network connectivity. He tests the network cable between thePC and the network jack and confirms it is good. Joe goes to the network closet and finds several network cables not connected to the switch. Which of the following tools would Joe use to determine which cable goes back to the correct network jack? A. Loopback plug B. Toner probe C. WiFi analyzer D. Punchdown tool

B

Which of the following uses a 240-pin connector? A. SODIMM B. DIMM C. SATA D. PATA

B. Dual inline memory modules (DIMMs) can use 240-pin connectors (and other sizes too). SODIMMs are smaller. SATA and PATA are hard drive connectors that are smaller as well.

What does a DHCP server need to be configured with to operate properly? A. DNS server B. Scope C. Range D. DHCP relay agent

B. Every DHCP server needs to have a scope, which is the range of addresses available to clients, as well as other options that it can give to client computers. A DHCP server can optionally provide clients with the address of a DNS server. There is no DHCP range. A DHCP relay agent is a system configured on a subnet with no DHCP server that relays DHCP requests to the DHCP server. DNS needs a zone file

You are enabling email on a mobile client. Which of the following is not a standard integrated commercial provider for email? A. iCloud B. Hotmail C. Yahoo Mail D. Exchange Online

B. Four commercial email providers to be familiar with are iCloud, Google/Inbox, Exchange Online, and Yahoo Mail. Hotmail used to be a commercial email provider, but it no longer exists; it's now part of Outlook.com.

Robin has been asked to lead training for new technicians at a local PC distributor specializing in gaming PCs. For which one of the following should she not recommend upgraded parts? A. High-end cooling B. A RAID array C. High-end video D. Better sound card

B. Gaming PCs are not known for requiring fault tolerance or data persistence. RAID arrays, therefore, are generally not included. The other components are a benefit for gaming PCs, however.

What are proprietary screen crashes called in Windows? A. Pin wheel B. BSOD C. Bomb screen D. PSOID

B. Once a regular occurrence when working with Windows, blue screens (also known as the blue screen of death) have become much less frequent.

Which of the following is a Class A address? A. 192.168.5.5 B. 10.6.6.3 C. 172.6.8.9 D. 201.69.3.2

B. The Class A range is 1-126. The class B range is 128-191. The Class C range is 192-223.

Which of the following is not a requirement for installing iTunes on a Windows machine? A. A 1GHz processor or better B. 1 GB of RAM or higher C. 400 MB of available disk space D. Broadband Internet connection

B. iTunes will run on a computer with 512 MB of RAM. 1 GB is not required unless you want to play 720p high-definition videos. A 1 GHz processor, 400 MB disk space, and broadband Internet are required.

A technician is troubleshooting an expansion card in a computer that allows the computer to receive faxes over a VoIP line. The telephone line connected to the expansion card is MOST likely which of the following cable types? A. Coaxial B. CAT3 C. CAT6 D. Multi-mode fiber E. Single-mode fiber

C

Ann, a user, wants to host a gaming server on her SOHO network. Which of the following features on the SOHO router would need to be configured? A. Channels B. DHCP C. Port forwarding D. Firmware

C

You are installing a new computer, and the user wants to use virtualization. Which two hardware components need to support virtual technology for this to work properly? (Choose two.) A. RAM B. Motherboard C. CPU D. BIOS

C, D. For virtualization to work, both the CPU and BIOS need to support it. The operating system does as well. Virtualization support may need to be manually enabled in the BIOS. RAM does not need to support virtualization, and neither does the motherboard (except for the BIOS).

What kind of peripheral is used to read credit cards to initiate financial transactions? (Choose all that apply.) A. Barcode reader B. Signature pad C. Magnetic reader D. Chip reader

C, D. Magnetic readers and chip readers can read credit and debit card information to initiate a financial transaction. Barcode readers read barcodes on packages. Signature pads allow for the digital input of someone's signature

How is accountability ensured? A. Dual accounts B. Shared accounts C. No shared accounts D. No audit trails

C. Ensure accountability by using no shared accounts. Each user should have a unique username/password combination. Audit trails should always be created.

You are installing a file server for the accounting department. Where should this file server be located on the network? A. Outside of the firewall B. In the DMZ C. In the secure network D. On the router

C. If the data on the server does not need to be accessed via the Internet, then the server should be in the most secure place possible, which is inside the firewall(s) in the secure network.

A newly assembled PC is giving beep codes at boot, but you don't recognize the code. Which of the following would be the best places to look first. (Select two.) ​ Hard Drive ​ RAM ​ CPU ​ Video Card

Correct Answer: Almost all POST beeps on modern PCs point to either the video card or RAM. Incorrect Answers: Without a working CPU, you won't even get POST errors. There are no beep codes for hard drives.

Which of the following UTP cables can be used as a 1000BaseT cable? ​ CAT 5 ​ CAT 1 ​ CAT 3 ​ CAT 5e

Correct Answer: CAT 5e is the only cable listed that can handle 1000-Mbps data transfer rates. CAT 6 is preferable. Incorrect Answers: CAT 1 is a standard phone line. CAT 3 can handle up to 10 Mbps on Ethernet networks. CAT 5 can handle up to 100 Mbps. Note: Once upon a time there was a network access method called Token Ring. It was a competitorto Ethernet technology back in the 90's. Token Ring used CAT 3 and could achieve transfer speeds up to 16 Mbps.

A customer asks a technician to upgrade a desktop computer to support the DVI-D interface. Which of the following PC expansion cards would the technician upgrade? A. FireWire card B. Network card C. Thunderbolt card D. Video card E. Sound card

D

A user is unable to show an Android smartphone display on a TV. Which of the following settings should the technician check to resolve this issue? A. Multi-window B. Air view C. Air browse D. Screen mirroring

D

Which of the following are the BEST features to include in a Home Theater PC? (Select TWO). A. Liquid Cooling B. VGA Output C. Dual Monitors D. Digital Audio E. HDMI Output F. NFC Capability

D, E

You have been hired as a consultant for a video editing company that needs all new workstations for its six editors. Which of the following is required when constructing an A/V editing workstation? A. Gigabit NIC B. Powerful processor C. Maximum RAM D. Fast hard drive

D. A/V editing workstations require specialized audio and video cards and large and fast hard drives; they also benefit from dual monitors. A fast NIC, extra RAM, and a faster than normal processor do not support the requirements of A/V editors.

Which of the following descriptions most closely matches that of a thin client? A. A high-resolution monitor, keyboard, and mouse B. A computer with a low-profile case C. A laptop D. A dumb terminal with a NIC

D. Although not all thin clients are devoid of local processing capability, some are. Highresolution graphics are not a requirement, but thin clients do require a system unit with a NIC.

You are installing a new graphics adapter in a Windows 10 system. Which of the following expansion slots is designed for high-speed, 3D graphics adapters? A. USB B. FireWire C. PCI D. PCIe

D. Although technically PCI could be used for graphics adapters, PCIe supports highspeed, 3D graphic video cards. PCIe offers better performance than older graphics adapters. USB and FireWire can stream video, but they are not used for attachment of internal graphics adapters.

What is the maximum number of IPv6 addresses that can be assigned to one IPv6 interface? A. One (unicast) B. Two (unicast and anycast) C. Three (unicast, anycast, and multicast) D. None of the above

D. An IPv6 interface is not limited in the number of addresses that it can be assigned, although there could be limitations based upon practicality.

What is the single, fixed resolution of an LCD called? A. Default resolution B. Refresh rate C. Burned-in resolution D. Native resolution E. Aspect ratio

D. An LCD's native resolution is the single, fixed resolution that provides optimal clarity. There is no default or burned-in resolution. The refresh rate is how quickly the image is re-drawn on the screen, and the aspect ratio is the ratio of the resolution.

The name of a WiFi access point is its: A. POP B. IMAP C. NFC D. SSID

D. An access point's name is its service set ID (SSID).

Which the following uses port 110? A. FTP B. SSH C. Telnet D. POP3

D. POP3 uses port 110. SSH uses port 22, FTP uses ports 20 and 21, and Telnet uses port 23.

Which of the following lets you quickly connect/disconnect with external peripherals and may also provide extra ports that the notebook PC doesn't normally have? A. Docking station B. Laptop lock C. Table lock D. Hot dock

D. With a hot dock, a laptop once put into suspended mode will recognize plug-and-play devices. A docking station essentially allows a laptop computer to be converted to a desktop computer. Laptop and table locks are used to secure mobile devices.

Which printer part gets the toner from the photosensitive drum onto the paper? A. Laser-scanning assembly B. Fusing assembly C. Corona assembly D. Drum

C. The transfer corona assembly gets the toner from the photosensitive drum onto the paper. For some printers, this is a transfer corona wire; for other printers, it is a transfer corona roller.

Activity logs show a large amount of data downloaded from a company server to an employee's workstation overnight. Upon further investigation, the technician identifies the data as being outside the scope of the employee's regular job functions. Which of the following steps should the technician take NEXT? A. Report through proper channels B. Document the changes C. Continue to track more evidence D. Preserve the chain of custody

Correct Answer: AThis is the breach of security. You need to report through proper channel to the senior management about this breach. You can report to your supervisor and he/ she can report to higher authorities for further investigation.

Which program is the best choice to use to clear the SSL cache? ​ Internet Explorer ​ Windows Firewall ​ Windows Update ​ Regedit

Internet Explorer Correct Answer: While there's more than one way to access Internet Options, of the choices given, only Internet Explorer is viable. Incorrect Answers: The other three options do not let you clear the SSL cache.

You are troubleshooting a computer that will not boot. You do not hear anything when you attempt to boot the computer, but you smell something that reminds you of burning plastic. Which of the following tools should you use to diagnose the problem with this computer? ​ ESD strap ​ Power supply tester Cable tester ​ Toner probe

Power supply tester OBJ-5.2: The smell of burning plastic and the computer not turning on are symptoms of a power supply issue. Therefore, you should use a power supply (PSU) tester. A burning smell emitting from your laptop indicates that your machine's cooling system is not functioning properly. If your laptop smells like something is burning, this usually means that your computer is overheating. This can be caused by a fan not working properly. For example, if the power supply unit's fan isn't working properly, the unit can overheat, and the wiring in the power supply's transformer can start to burn or melt. This can then cause the power supply unit to fail, too.

You are working as a customer service technician at a smartphone repair center. A customer calls your help desk and states that the device feels warm to the touch even when not used. You ask them to conduct a visual inspection of the smartphone and describe what they are seeing. The customer says, "The battery appears to be swollen' and bulging outward beyond its normally rectangular shape." Which of the following is the BEST statement for you to provide to the customer? ​ "Please conduct a factory reset of your phone since this will eliminate the overheating issue." ​ "Please place 5 heavy books on top of your smartphone since the weight will help reform the battery into its proper and normal rectangular shape." ​ "Please do not use the smartphone and bring it into our service center immediately so that we can replace the battery for you." ​ "Since the device is still working, you can continue to use your phone until the new model is released in 2 months."

"Please do not use the smartphone and bring it into our service center immediately so that we can replace the battery for you." ​ OBJ-5.2: A mobile device battery (such as a smartphone or tablet) will become swollen or distended as it begins to fail. If this occurs and the battery or device appears to be physically abnormal, the customer should NOT use the smartphone. The device should be serviced immediately, the battery should be replaced, and the phone inspected to ensure the defective battery has not damaged it.

Which of the following is a Class C address? A. 192.168.5.5 B. 10.6.6.3 C. 172.6.8.9 D. 224.69.3.2

A. The Class C range is 192-223. The class A range is 1-126. The class B range is 128-191. The 224 range is for multicasting.

A technician has been tasked with designing a new printing solution for a small team. They want to be able to use a central printer from their shared workspace as well as the conference room next door. Which of the following connection methods would BEST suit their need? A. USB B. Infrared (IR) C. Bluetooth D. Wireless

A

USB 2.0 supports three data transfer rates: _________, _________, and _________. ​ 100 Mbps, 266 Mbps, 480 Mbps ​ 120 Mbps, 200 Mbps, 400 Mbps ​ 1.5 Mbps, 12 Mbps, 480 Mbps ​ 1.5 MBps, 24 MBps, 400 MBps

1.5 Mbps, 12 Mbps, 480 Mbps USB 2.0 supports three data transfer rates: 1.5 Mbps, 12 Mbps, and 480 Mbps. Incorrect Answers: IEEE 1394a runs at 400 Mbps. The other answers are made up and incorrect.

Which of the following is a private IP address? ​ 172.1.1.1 ​ 10.1.1.1 ​ 192.1.1.1 ​ 1.1.1.1

10.1.1.1 Correct: 10.1.1.1 is a private IP address. There are three private IP address ranges: Class A: 10.X.X.X Class B: 172.16.X.X - 172.31.X.X Class C: 192.168.X.X Incorrect: The other three answers are made up and incorrect.

A company is terminating Cat 6 wiring at a 110 block.Which of the following should be used? A. A crimper B. A cable stripper C. A punchdown tool D. A tone generator

110 Block / 66 Block Punchdow

What is the IP address of the " localhost?" ​ 169.254.136.32 ​ 192.168.1.1 ​ 10.12.14.16 ​ 127.0.0.1

127.0.0.1 Correct Answers: The IP address 127.0.0.1 is known as localhost. It enables the computer to ping itself. Incorrect Answers: 169.254.136.32 is an Automatic Private IP Addressing (APIPA) address and the other two answers are random valid IP addresses.

Which of the following is a typical Class C address? ​ 172.16.5.100 ​ 169.254.0.1 ​ 192.168.1.100 ​ 10.12.14.5

192.168.1.100 Correct Answer: 192.168.1.100 is a typical private Class C address. Incorrect Answers: 169.254.0.1 is an Automatic Private IP Addressing (APIPA) address. 172.16.5.100 is a private Class B address. 10.12.14.5 is a private Class A address.

Which subnet mask is used with a Class B address? ​ 255.0.0.0 ​ 255.255.0.0 ​ 255.255.255.255 ​ 255.255.255.0

255.255.0.0 Correct: A Class B subnet mask is 255.255.0.0. Incorrect: 255.0.0.0 is a Class A subnet mask. 255.255.255.0 is a Class C subnet mask. 255.255.255.255 is the last Class E address.

Which of the following ports should you block at the firewall if you want to prevent a remote login to a server from occurring? ​ 25 ​ 23 443 ​ 110

23 OBJ-2.1: Port 23 is used by telnet, which administrators use to connect remotely to a server and issue commands via a command-line interface. Telnet is not commonly used in networks anymore because all of the commands sent back and forth to the server are passed without any encryption or protection. Therefore, telnet is a security risk and has been mostly replaced by SSH (Port 22). Port 25 is used by SMTP, Port 110 is used by POP3, and port 443 is used by HTTPS.

Your firewall is blocking outbound email traffic that is attempting to be sent. Which port should you verify is set to ALLOW in the firewall to ensure your emails are being sent? ​ 143 ​ 25 ​ 22 ​ 80

25 OBJ-2.1: Email servers rely on port 25 to send email out of the network. Port 25 must be set to OPEN or ALLOW in the firewall in order for SMTP (sendmail transfer protocol) to function properly. Port 22 is SSH, Port 80 is HTTP, and Port 143 is IMAP.

A small office would like to offer Internet access to customers while onsite. However, customers should not be able to access any corporate data. Which of the following networking features would BEST enable this? A. Configure a guest wireless network B. Implement a DMZ C. Disable NAT on the wireless network D. Disable the SSID E. Assign static IPs for all devices

A

Your desktop computer is currently running out of internal storage space. You want to upgrade the workstation with more internal storage to store additional videos, photos, and backups. Which of the following is the BEST storage solution to avoid having to expand again next year while still meeting your need to store more data? ​ 1 TB SSD ​ 5 TB NAS ​ 50 TB SAN ​ 3 TB HDD

3 TB HDD OBJ-3.4: Since you need an internal storage solution, you cannot use a NAS or SAN (since these are both network storage solutions). Instead, you have to select from the SSD or the HDD. In this question, we are primarily worried about the size of the storage being installed and not the storage speed. Therefore, we should choose the 3 TB HDD (hard disk drive) over the 1 TB SSD (solid-state drive) due to its larger size.

What voltages does an ATX12V P1 connector provide for the motherboard? ​ 3.3 V, 5 V ​ 5 V, 12 V ​ 3.3 V, 12 V ​ 3.3 V, 5 V, 12 V

3.3 V, 5 V, 12 V Correct Answer: An ATX12V P1 connector provides 3.3 V, 5 V, and 12 V of power to the motherboard. Incorrect Answers: 4-pin Molex connectors provide 5 V and 12 V of power. AUX connectors provide 3.3 V and 5 V of power.

Your company just installed a new webserver within your DMZ. You have been asked to open up the port for secure web browsing on the firewall. Which port should you set as open to allow users to access this new server? ​ 80 ​ 443 ​ 21 ​ 143

443 OBJ-2.1: Port 443 is used for HTTPS traffic. Therefore, this port must be opened. This is secure web browsing over SSL or TLS. Port 21 is used for the File Transfer Protocol (FTP). Port 80 is used for insecure web browsing (HTTP). Port 143 is used for Internet Mail Application Protocol (IMAP).

A technician has 2GB of data that needs to be backed up from a customers Windows 7 computer. Which of the following storage media should the technician use? A. DVD-RW B. CD-RW C. DVD-ROM D. CD-ROM

A

A technician has been asked to share a laser printer amongst the users in an HR workgroup.The printer will need to be accessed from distances up to 200 feet through no more than one to two, hollow, dry board walls. Which of the following methods should be used? A. 802.11x B. PAN C. USB D. Infrared (IR)

A

A PCIe video power connector has how many pins? (Choose two.) ​ 6 ​ 8 ​ 4 ​ 24 ​ 20

6 ​ 8 ​Correct Answers: PCIe power connectors can come in 6-pin and 8-pin varieties depending on what is needed. Both deliver an additional 12 volts for advanced video cards. The 6-pin connector officially supplies 75 watts of extra power for video cards, while the 8-pin connector supplies up to 150 watts. While installing an 8-pin PCIe power connector, be careful not confuse it with the 8-pin EPS connector for your motherboard. You might just see some sparks fly! Incorrect Answers: The 4-pin power connector is for the traditional Molex connector. The 20- & 24-pin power connectors are known as the ATX power connector, or sometimes the "P1" connector. Which one you have usually depends on the age of your motherboard and power supply and what their requirements are.

A printer technician is sent to work on a fuser in a laser printer that is not adhering toner properly to the paper. While onsite Joe, an end user, reports that he has been having frequent paper jams as well. Which of the following would be the BEST course of action to repair the printer? A. Install a manufacturer recommended maintenance kit B. Install the fuser, replace the toner cartridge, and replace the pickup and separation rollers C. Install the fuser and also replace the high voltage power supply D. Install the fuser as the paper jams were probably also caused by the defective fuser

A

A company is converting to LCD monitors and needs to properly dispose of all CRT monitors. Which of the following is an important consideration when disposing of CRT monitors? A. The materials within the cathode ray tube are harmful. B. They are heavier than LCD monitors and therefore require special disposal. C. The glass of the tube can easily break and cause serious injury. D. The rays of the cathode can cause blindness if someone is exposed.

A

A customer needs a router that will be able to handle all incoming and outgoing networking traffic independent of the rest of the building. The customer would like the PCs to immediately connect to the Internet and network resources without any additional configuration. Which of the following should the technician do to meet the requirements? A. Configure the router for DHCP. B. Configure the router for NAT. C. Configure the router for port forwarding. D. Configure the router for QoS.

A

A customer wants to be able to archive a large 15 to 20 GB project to optical media using a single disk. Which of the following should a technician recommend? A. Blu-Ray writer B. DVD-RW drive C. Dual Layer DVD burner D. CD-ROM burner

A

A network technician has been tasked with deploying new VoIP phones on a network. When the technician plugs the Ethernet cable for the phone into the wall port, the phone fails to turn on. When the technician plugs the Ethernet cable directly into the computer, the computer is able to access the network. Which of the following is the MOST likely cause of this issue? A. The network switch does not support PoE B. The technician is connecting the phone to the wrong type of port C. The firewall on the network is blocking access to the DHCP server D. The Ethernet cable is the wrong type

A

A new company is thinking of upgrading its media workstation in the conference room. The computer will be predominantly used for graphically intensive presentations, slideshows, and video gaming tournaments. Which of the following BEST satisfies the needs of the company? A. High-end video, high-end audio, multicore processor B. Minimum RAM required, network connectivity, high-end cooling C. Media streaming, file sharing, gigabit NIC, dual monitors, TV tuner D. Network connectivity, TV tuner, surround sound audio, dual monitors

A

A user has received an error message when connecting to the wireless network. The error indicates the IP address being used by the users system is already in use. A DHCP server is used on the network. After having the user disconnect from the wireless network, the technician is still able to ping the users IP address.Which of the following is MOST likely the cause? A. The user has a statically assigned IP address in the DHCP server scope. B. The system's local firewall is blocking SYN/ACK traffic from the DHCP server. C. The DHCP server's scope has been exhausted and no additional IP addresses are available. D. The user is also connected to the wired network with a LAN cable.

A

A user is notified of file system errors on an external hard drive. Which of the following tools can be used to repair common errors on the drive? A. chkdsk B. diskpart C. format D. sfc

A

A user is on a business trip with a company issued Windows 7 laptop and is unable to connect to corporate WLAN. To temporarily reconfigure the settings, which of the following must the technician must access? A. Start/Control Panel/Network and Sharing Center/Change Adapter Settings/Wireless Network Connection Properties B. Start/Control Panel/Network and Sharing Center/Manage Wireless Networks/Profile Types C. Start/Control Panel/Network and Sharing Center/Manage Wireless Networks/Add/Create an ad hoc network D. Start/Control Panel/Network and Sharing Center/Manage Wireless Networks/Add/Manually create a network profile

A

A user states there are multiple small black dots on an LCD screen. Which of the following should be done to resolve the issue? A. Replace monitor. B. Replace video card. C. Replace video cable. D. Replace power supply.

A

A user, Ann, reports that her company laptop cannot pick up a wireless connection in certain areas of a building. However, users working on their laptops in the common areas have Internet connectivity. Which of the following is the MOST likely cause? A. Weak RF signals B. Out of date Ethernet driver C. Enabled MAC filtering D. Duplicate IP addresses

A

An office printer that was working earlier in the day is no longer printing any documents. Pre-existing workstations are manually configured to print to the printer directly over the network. A technician has started to troubleshoot the problem and determines that the printer can still be seen in the network directory. The technician has also verified that the printer can print self-diagnostic pages successfully. Which of the following is the MOST likely cause of the problem? A. The printer's IP address has changed. B. The network print spooler service has been restarted. C. "Perform Printer Maintenance" message is displayed on the printer's LCD panel. D. Two or more users sent print jobs simultaneously, causing a print collision.

A

Ann, a technician, is inspecting a PC with an Intel Core 2 Quad processor and finds that the Task Manager is reporting the system as having 8 cores. She is convinced this system only has four cores. Which of the following technologies is causing the discrepancy? A. Hyperthreading B. Intel SSE3 C. L2 Cache D. S.M.A.R.T.

A

Joe, a user, wants to modify the fan speed settings on his PC. Which of the following locations allows the fan speed settings to be changed? A. BIOS B. Device Manager C. Motherboard Jumpers D. Computer Management

A

Jot, a customer, requests that the desktop system he is buying is able to be used at his vacation home in another country, as well as his regular home. The technician is aware that the country mentioned has different power requirements. Which of the following should the technician ensure the desktop contains? A. Dual voltage options B. UPS C. Inverter D. Micro-ATX connector

A

Jot, a user, has installed a new monitor on an existing system. Jot calls a support technician and reports that everything on the new display is fuzzy. Which of the following describes what needs to be changed to correct this issue? A. The display resolution needs to match the native resolution. B. The old graphics card does not support the new monitor. C. The new monitor cable needs to have aluminum cores installed. D. The new monitor requires updated drivers to be installed.

A

Modern laptop screens are much brighter because of advances in which of the following technologies? A. LED B. Batteries C. Inverter D. Plasma

A

When a technician suspects prohibited activity on an organization's network or computers, which of the following is the FIRST step they should take? A. Confirm an actual infraction has taken place B. Confront the suspected person with incident details C. Notify others so that peers will stop the activity D. Erase the contents of the user's computer and disable their account

A

Which of the following MUST be the same when replacing a hard drive in a laptop? A. The interface type of the existing drive B. The speed of the new drive C. The total data capacity of the PC D. The cache size of the new drive

A

Which of the following channels should a technician choose when installing multiple wireless access points for a small office home office (SOHO) network to provide the MINIMAL interference? A. 1, 6,11 B. 2, 5,10 C. 3, 7,9 D. 4, 5,8

A

Which of the following is an advantage of using DHCP for network addressing? A. Simplified configuration B. More addresses are available C. Faster connection speeds D. Lower latency times

A

Which of the following is an advantage of using static IP addresses for a business? A. High availability B. Simplifies IP management C. Lower security risk D. Scalability for upgrades

A

Which of the following is used to provide secure file storage to network users only? A. NAS B. IMAP C. SAN D. SSH

A

Which of the following panel types would allow for the THINNEST possible display monitor? A. LED B. CRT C. DLP D. Plasma

A

Which of the following wireless technologies is LEAST likely to be intercepted by a third party? A. NFC B. Bluetooth C. WiFi D. Cellular

A

Which of the following wireless transmission methods requires line of sight? A. Infrared B. RFID C. 802.11a D. Bluetooth

A

A laptop has a network port that is not working consistently and wireless is out of range. Which of the following would the technician do to quickly get the laptop back on the wired network? A. Use a USB to RJ-45 dongle B. Enable Bluetooth C. Enable NIC teaming D. Replace the motherboard

A This is a specialized cable that services smaller, often portable devices. Despite the connection pieces, this is still a "serial" cable that enables terminal communication. The CAB-CONSOLE-USB-RJ45 is arguably the most modern console cable. It ditches the less-used DB9 connector and streamlines your communication.

The OSD of a monitor indicates the proper video source is selected, but no image is displayed. Which of the following issues are the MOST likely reasons? (SelectTWO). A. The source cable is disconnected B. The monitor's brightness is set too low C. The backlighting of the monitor is faulty D. The monitor's contrast is set too high E. No device is sending source video

A E OSD = on screen display

Which of the following explains why a tablets boot more quickly than most laptops? ​ A tablet has a smaller circuit board than a laptop. ​ A SSD drive loads data much faster than a SATA drive. ​ A SATA drive loads data much faster than an IDE drive. ​ A tablet requires less power to operate than a laptop.

A SSD drive loads data much faster than a SATA drive.- Since tablets use SSDs for mass storage instead of platter-based hard drives, they load the OS much more quickly. Incorrect Answers: The other answers are made up.

Which of the following devices is probably the safest and easiest to hot-swap on a PC? ​ A modular CD-ROM drive ​ A mini-PCI NIC ​ A USB camera ​ A USB hard drive ​ A PS/2 Mouse

A USB camera Correct Answer: Nothing, not even a modular drive, beats USB for hot-swap ease and safety. Incorrect Answers: Either USB device might be easily swapped, but you could lose data on a USB hard drive if you didn't close any open files first. A mini-PCI NIC would not be hot-swappable, nor would a PS/2 mouse.

You had just bought a top of the line smartphone 2 months ago. In the last week, though, the smartphone seems to be running slowly. About 3 weeks ago, a new version of the phone's operating system was installed. At first, everything was still working fine, but this week the smartphone is very sluggish. You brought the smartphone back to the store to diagnose the problem. They have run a full set of diagnostics on the smartphone's hardware, but no issues were found to exist with the hardware. What do you think is MOST likely causing the poor performance with this smartphone? ​ The newly installed operating system update is too resource-intensive for this smartphone's hardware ​ The internal storage device of the smartphone is faulty ​ A lot of the apps on the device are performing an update based on the newer OS being released ​ The smartphone was set to airplane mode by mistake

A lot of the apps on the device are performing an update based on the newer OS being released OBJ-5.5: The most likely cause for the slowdown of this top of the line smartphone is that too many apps are simultaneously trying to perform an update, and it is overwhelming the processor and memory. This commonly occurs within a week or two of a newly installed OS version. For example, if we upgrade from iOS 12 to iOS 13, all of the apps are updated and recoded to support the newer OS version. They are usually released within 1-2 weeks of the newly released version. Since the hardware passed all the diagnostics, the problem cannot be the internal storage. The OS update isn't too resource-intensive since it is only a two-month-old top of the line device.

Amy's office wants to upgrade their intranet web server. The pricing for the software they use is based on motherboard sockets. Which of the following CPU and motherboard combinations offers the best performance at the best price? ​ A dual-processor motherboard with six overclocked cores each ​ A dual-processor motherboard with ten overclocked cores each ​ A single-processor motherboard with eight hyperthreaded cores ​ A single-processor motherboard with eight threaded cores

A single-processor motherboard with eight hyperthreaded cores A single-processor motherboard with eight hyperthreaded cores will provide excellent performance and minimum costs. Incorrect Answers: A single-processor motherboard with eight threaded cores doesn't make a lot of sense. All CPUs process threads. A dual-processor motherboard with six overclocked cores would provide good performance, but would cost more than a single-processor solution. A dual-processor motherboard with ten overclocked cores would provide good performance, but would cost more than a single-processor solution.

You attempt to log on to a Windows workstation, and an error message pops up that says there is a duplicate IP address detected on the network. You restart the workstation, but the same error is displayed when you attempt to log in again. Which of the following is MOST likely causing this error message to occur? ​ A static address has been configured on the workstation ​ You are logged into another workstation at the same time ​ Both wireless and wired connections are enabled on the workstation ​ The workstation was recently moved from another location

A static address has been configured on the workstation OBJ-5.7: If you defined a static IP address for a workstation or network device, duplicate IP address conflicts may occur on a DHCP network. To resolve it, convert the workstation or network device with the static IP address. Or, you can exclude the static IP address from the DHCP scope on the DHCP server.

If the video on your laptop is not working, what should you do to troubleshoot it? (Choose two.) A. Toggle the video function key. B. Try using an external monitor. C. Remove the display unit and reattach it. D. Power the system off and back on.

A, B. Two helpful things to try are toggling the video output function key (usually something like Fn+F8) and plugging an external monitor into the laptop. Removing the display is possible but not necessary yet. Powering the system off and back on isn't likely to correct the problem.

A user accidentally spills liquid on a laptop. The user wants the device to be fixed and would like to know how much it will cost.Which of the following steps should the technician take NEXT to verify if the device is repairable before committing to a price? (Choose two.) A. Remove the case and organize the parts. B. Document the screw locations. C. Search the Internet for repair tutorials. D. Consult colleagues for advice. E. Place the device in rice for a few days.

A, B

A user wants to extend a PC's capacity by connecting external devices. Which of the following connectors will allow the user to accomplish this? (Select TWO). A. eSATA B. IEEE 1394 C. SATA D. EIDE E. IDE

A, B

Which of the following monitor technologies provide the widest viewing angle with rich colors and consistent backlighting? (Select TWO). A. Light Emitting Diode B. In-Plane Switching C. Plasma D. Twisted Nematic E. Cold Cathode Fluorescent Lamp

A, B

Which of the following are valid examples of IPv6 addresses? (Choose all that apply.) A. 2001:0db8:3c4d:0012:0000:0000:1234:56ab B. ::ffff:c0a8:173 C. 2001:db8:3c4d:12::1234:56ab D. 2001::1ab4::5468

A, B, C. An IPv6 address contains 128 bits, written in eight 16-bit fields represented by four hexadecimal digits. Option A contains all eight fields expressed in full. Option B is an IPv4 address expressed in IPv6 form. Option C is the same address as Option A, but written in accepted shorthand. Option D is not valid because the double colons (::) can be used only once within an address.

A computer using which of the following would be considered a legacy device? (Choose all that apply.) A. A 386 processor B. The IPX/SPX protocol C. An application developed in 1983 D. Only 1 GB RAM

A, B, C. Legacy systems are ones that use older hardware, software, or network protocols that are not commonly used today. A system with only 1 GB RAM might be underpowered, but that in and of itself does not make it a legacy system.

When you turn on a desktop computer, you hear a loud squealing noise coming from inside the case. Which components are potential culprits for making the noise? (Choose all that apply.) A. CPU fan B. Power supply fan C. HDD D. SSD E. CPU F. RAM

A, B, C. Only components with moving parts can make ticking, clicking, or squealing noises. It's probably a fan of some sort (such as the CPU fan or power supply fan), or it could be a conventional hard drive. SSDs, CPUs, and RAM do not have moving parts and therefore could not be causing this problem.

Which of the following system types do not require a CPU enhancement of any sort? (Choose all that apply.) A. A/V editing workstation B. Gaming PC C. Graphic design workstation D. Virtualization workstation

A, B, C. Virtualization workstations are the only custom configuration that requires CPU enhancements. For these types of systems, more cores are better. A/V editing workstations, gaming PCs, and graphic design workstations do not require CPU enhancements.

What is typically included in the EP laser printer toner cartridge? (Choose three.) A. Toner B. Print drum C. Laser D. Cleaning blade

A, B, D. An electrophotographic (EP) laser printer toner cartridge includes the toner, print drum, and cleaning blade. The laser is usually contained within the printer, not within the toner cartridge.

Which of the following are components you might find inside a PC? (Select all correct answers.) A. CPU B. Motherboard C. Keyboard D. Printer E. RAM F. Cable modem

A, B, E

You need to replace an LCD on a defective laptop. Which of the following are components of an LCD? (Choose all that apply.) A. Inverter B. Screen C. Wi-Fi card D. Backdrop

A, B. The components of an LCD screen are the inverter, screen, and backlight. LCD display units will also have a Wi-Fi antenna (not the card), webcam, and microphone. There is no backdrop component.

Your network is running IPv4. Which of the configuration options are mandatory for your host to communicate on the network? (Choose two.) A. IP address B. Subnet mask C. Default gateway D. DNS server address

A, B. The only mandatory IPv4 configuration items are an IP address and a subnet mask. If you are not connecting to another network, you do not need a default gateway. DNS servers resolve hostnames to IP addresses, but they are not mandatory.

Which of the following delivers an upload speed equal to the download speed? A. SDSL B. VDSL C. VHDSL D. RADSL

A. Symmetric DSL (SDSL) offers an upload equal to the download speed. The other versions all have slower upload speed than download speed.

You are identifying the problem while troubleshooting a network issue. Which of the following are proper steps to help identify the problem? (Choose all that apply.) A. Inquire regarding infrastructure changes. B. Conduct internal or external research based on symptoms. C. Review the system and application logs. D. Determine the next steps to resolve the problem. E. Question the user and identify user changes to the computer.

A, C, E. The three sub-steps to identify the problem are: Question the user and identify user changes to computer; inquire regarding environmental or infrastructure changes; and review the system and application logs. Conducting internal or external research is part of establishing a theory of probable cause. Determining the next steps to resolve the problem is part of testing the theory to determine cause.

A user pushes the power button on her desktop computer but nothing happens. She doublechecks that it is plugged in and that the wall outlet is working properly. Which components are most likely to cause this problem? (Choose two.) A. Power supply B. Motherboard C. Power cord D. CPU E. RAM

A, C. If the wall outlet is functioning and the power cable is connected properly (always check the obvious), then the most likely culprits are the power supply or the power cord. The motherboard, CPU, and RAM are unlikely to cause a complete power failure in a computer.

Which of the following are services that a print server should provide? (Choose two.) A. Accepting print jobs from clients B. Turning off printers on demand C. Providing clients with the appropriate printer driver during installation D. Notifying users when the print job is complete

A, C. Print servers should make printers available to clients and accept print jobs. They also process print jobs and manage print priorities. Finally, they provide client computers with the right print drivers when the clients attempt to install the printer. They do not turn printers off on demand nor provide notification that a job has printed.

Marcus, a network technician, has been asked to build a virtualization workstation for his manager. Which of the following are not common requirements that Marcus should consider for this custom configuration? (Choose all that apply.) A. Surround sound B. Maximum RAM C. Large, fast hard drives D. Multiple CPU cores

A, C. Virtualization workstations need to maximize the amount of RAM as well as CPU cores. Each virtualized instance of an operating system will be assigned its own memory and processor resources, and those resources are essentially reserved and off-limits to other virtual operating systems. Therefore, maximize both of them. Audio isn't required on a virtualization workstation, so surround sound is not needed. Large fast hard drives will be nice but are not a primary requirement.

Which of these terms best describe a SOHO network? (Choose two.) A. Peer-to-peer B. Client-server C. WAN D. LAN

A, D. A SOHO network is a peer-to-peer LAN. A WAN is a wide area network, where clients are not located near each other. A clientserver network is a larger network that uses a server.

What are two advantages that TCP has over UDP? (Choose two.) A. Acknowledged delivery B. Faster delivery C. Lower overhead D. Virtual circuits

A, D. TCP is a connection-oriented protocol that establishes virtual circuits and acknowledges delivery of packets. Because of these features, it has higher overhead than UDP and is a little slower.

All of the following systems benefit from increased RAM except . (Choose two.) A. Network-attached storage device B. Virtualization workstation C. Graphic design workstation D. Gaming PC

A, D. Virtualization and graphic design workstations benefit from as much RAM as can be installed. Network-attached storage devices and gaming PCs do not require a large amount of temporary storage of instructions and data. They are more about the rapid movement of graphical data toward an output device.

Besides 802.11 standards, which wireless communication methods work in the 2.4 GHz range? (Choose all that apply.) A. Bluetooth B. Z-Wave C. Satellite D. 5G mmWave E. Zigbee F. NFC

A, E. Bluetooth and Zigbee also operate in the 2.4 GHz range. Z-Wave operates in the 800 MHz and 900 MHz ranges; satellite uses satellite waves; 5G cellular mmWave is between 24 GHz and 86 GHz; and NFC uses 13.56 MHz.

When installing a laptop at a desk that will be using stationary dual monitors, which of the following ports should be used? (Select TWO). A. VGA B. IEEE 1394 C. PCIe D. PCMCIA E. ExpressPort F. HDMI

A, F

A technician has noticed that when at company headquarters the laptop connection to the Internet is more responsive than when using the company-provided phone as a hotspot. The technician updated the drivers on the WiFi NIC without resolution and then verified the configuration on the WiFi was correct.Which of the following configurations could cause the decreased performance? A. The connection if throttled. B. There is a low RFID signal. C. SSID is not found. D. It is out of range.

A. It's important to realize the distinction between ISP throttling and internal throttling, a company may be huge and if a technician is on the lower end of the corporate ladder, they may experience throttling from the systems administrator. Good communication, testing with the phone (Outside connection), and calling the ISP are all ways to find out answers to what the source of throttling is. Throttling is very helpful in making sure a system has stability, especially if some users use immense amounts of bandwidth. When it comes to ISP throttling, it can be everything from annoying to downright illegal so keep GREAT documentation when experiences bad service.

You have been asked to set up client-side virtualization on a computer at work. The manager asks for a Type 2 hypervisor. What is the disadvantage of using that type of hypervisor? A. The guest OS will compete for resources with the host OS. B. The guest OS will be forced to a lower priortity with the CPU than the host OS. C. The guest OS will be forced to use less RAM than the host OS. D. The virtual guest OS will not be able to get on the physical network.

A. A Type 2 hypervisor sits on top of an existing OS, meaning that OSs installed in VMs will compete for resources with the host OS. The amount of resources available to a guest OS can be configured. Virtual OSs can get on the physical network if configured properly.

Which of the following is an example of a Type II hypervisor? A. Oracle VirtualBox B. VMware NSX C. Hyper-V D. Citrix Xen Server

A. A Type II hypervisor runs within a conventional operating system environment. With the hypervisor layer as a distinct second software level, guest operating systems run at the third level above the hardware. VMware Workstation Citrix Xen Server and VirtualBox exemplify Type II hypervisors.

You need to install a new hard drive into a desktop computer, Which of the following is not one of the three major components of a hard disk drive system? A. Drive interface B. Disk controller C. Hard disk D. Host adapter

A. A conventional hard disk drive system consists of the hard disk and its often-integrated controller as well as a host adapter to gain access to the rest of the computer system. The drive interface is a common component of the controller and host adapter.

A network cable for a crucial server has failed. There are no pre-made Ethernet cables available, but there is bulk cable and connectors. Which tool do you need to use to make a new cable? A. Crimper B. Punch-down tool C. Cable tester D. Loopback plug

A. A crimper is used to make network cables. Punch-down tools are used to connect the wires of a cable to a wiring rack, such as a 110-block. Cable testers are for verifying that a cable works properly (and may be handy after you complete the cable). A loopback plug is for testing the ability of a network adapter to send and receive.

You have a user who needs to keep desktop devices such as keyboard, monitor, and mouse permanently connected so that they can be used by an attached laptop. What type of device do you recommend that they use? A. Docking station B. Keyboard, video, mouse (KVM) switch C. Print server D. USB hub

A. A docking station made specifically for its associated brand and model of laptop can host desktop components permanently, regardless of whether the laptop is attached to the docking station. When the laptop's portability is not required, but instead use of the desktop components is the priority, attaching the laptop to the docking station makes such components available to the laptop without separately attaching each component.

Which of the following uses satellite information to plot the global location of an object and uses that information to plot the route to a second location? A. GPS B. Geofencing C. Remote wipe D. Local wipe

A. A global positioning system (GPS) uses satellite information to plot the global location of an object and uses that information to plot the route to a second location. Geofencing is the use of GPS to restrict communication to an area. Remote wipe is the cleaning of data from a lost or stolen device. There is no such thing as local wipe.

Which display uses a row of transistors across the top of the screen and a column of them down the side? A. Passive matrix B. Active matrix C. Twisted nematic D. In -plane switching

A. A passive matrix screen uses a row of transistors across the top of the screen and a column of them down the side. It sends pulses to each pixel at the intersection of each row and column combination, telling it what to display. An active matrix screen uses a separate transistor for each individual pixel in the display, resulting in higher refresh rates and brighter display quality. Twisted nematic (TN) is the older of the two major technologies for flat-panel displays. While it provides the shortest response time, has high brightness, and draws less power than competing technologies, it suffers from poor quality when viewed from wide angles. In-Plane Switching (IPS) is a newer technology that solves the issue of poor quality at angles other than straight on.

Which one of the following addresses is considered a private IP address? A. 192.168.100.101 B. 168.192.100.101 C. 19.21.68.100 D. 172.15.100.101

A. Addresses that are in the 192.168.x.x range are private IP addresses, as are those in the 10.x.x.x range and the 172.16.x.x-172.31.x.x range.

What happens during the developing stage of laser printing? A. An electrostatic charge is applied to the drum to attract toner particles. B. Heat is applied to the paper to melt the toner. C. The laser creates an image of the page on the drum. D. An electrostatic charge is applied to the paper to attract toner particles.

A. After a laser has created an image of the page, the developing roller uses a magnet and electrostatic charges to attract toner to itself and then transfers the toner to the areas on the drum that have been exposed to the laser. The toner is melted during the fusing stage. The laser creates an image of the page on the drum in the exposing stage. An electrostatic charge is applied to the paper to attract toner in the transferring stage, which happens immediately after the developing stage.

You have fixed a printer problem and verified full functionality. What is the next step to take in the best practice methodology? A. Document findings, actions, and outcomes. B. Conduct internal or external research. C. Review system and application logs. D. Establish a theory of probable cause.

A. After verifying full system functionality and implementing preventive measures as needed, the final step in the best practice methodology is to document findings, actions, and outcomes.

Due to government regulations, a client wants to preserve data for a long period of time. What kind of media is most commonly used when large amounts of data need to be archived on a regular basis? A. Tape B. Optical disc C. External hard drive D. Network share

A. Although inefficient as an interactive medium, sequential tape-based storage continues to be developed in increasing capacities. Tape continues to be a good choice for frequently backing up large amounts of data for redundancy and archival purposes. Optical discs don't have the same capacity, and neither do external hard drives. The cloud could be an option, but that is different from a network share.

Which of the following is the operating system used by Apple Watch? A. watchOS B. iOS C. macOS D. AppleOS

A. Apple created a new OS for its watch called watchOS. It's very similar to iOS but designed for the smaller screen. macOS is Apple's desktop OS, and there is no current AppleOS.

Which of the following wireless communication standards is often described in terms of a wireless personal area network? A. Bluetooth B. Infrared C. Cellular D. Ethernet

A. Bluetooth networks are often called wireless personal area networks (WPANs).

A customer wants a computer for performing a single-threaded task as quickly as possible. Which of the following CPU characteristics is the MOST important? A. Clock speed B. Hyperthreading C. Fan speed D. Number of cores

A. Clock speed

Which of the following feeds through the printer using a system of sprockets and tractors? A. Continuous feed B. Sheet fed C. Impact D. Thermal

A. Continuous-feed paper feeds through the printer using a system of sprockets and tractors. Sheet-fed printers accept plain paper in a paper tray. Dot matrix is continuous feed; everything else is sheet fed.

You are interested in purchasing a new monitor and notice the contrast ratio specification. What does that refer to? A. The ratio of luminance between the darkest and lightest colors that can be displayed B. A term that was used with LCDs but is not a valid specification for OLEDs C. The ratio of luminance between two adjacent pixels D. A feature that changes based on the resolution setting

A. Contrast ratio is a selling point for LCDs and is relevant for all monitor types, including OLEDs. Higher contrast ratios mean the monitor displays darker blacks and brighter whites. The measure of luminance between adjacent pixels is known as contrast, not contrast ratio. Contrast ratio is not dependent upon resolution.

Which of the following IP addresses would not be valid for a DNS server on the Internet? A. 10.25.11.33 B. 18.33.66.254 C. 155.118.63.11 D. 192.186.12.2

A. DNS servers resolve hostnames to IP addresses. On the Internet, a DNS server needs to have a public IP address. The address 10.25.11.33 is in a private address space, so that address would not be valid for a DNS server on the Internet.

A video editor at your company wants a second monitor, claiming that having only one monitor limits her ability to work. Why do A/V editing workstations benefit from more than one monitor? A. Their software often has enough controls across their width that one monitor seems cramped. B. While one graphics adapter works on one rendering project, the other can simply display a normal desktop. C. Once the editing is complete, the second monitor is used to present the results to others on the team. D. Additional monitors are used for remote collaboration among other editors.

A. Editors of this type of media have numerous controls and timelines to track. These constructs often lie along the bottom of the application and run horizontally. Subsequent monitors allow the editor to spread out her work without shrinking the view excessively.

Which cable type has a glass core within a rubber outer coating? A. Fiber optic B. Coaxial C. Twisted pair D. Serial

A. Fiber-optic cabling is the most expensive type of those discussed for this exam. Although it's an excellent medium, it's often not used because of the cost of implementing it. It has a glass core within a rubber outer coating and uses beams of light rather than electrical signals to relay data. None of the other options uses glass in its construction.

Which of the following most accurately describes how to obtain a firmware upgrade for your laser printer? A. Download the firmware upgrade for free from the manufacturer's website. B. Pay to download the firmware upgrade from the manufacturer's website. C. Have a certified laser printer technician come to your site and install a new firmware chip. D. Contact the manufacturer of the printer, and they will send you the firmware upgrade on a DVD.

A. Firmware upgrades for laser printers are downloaded for free from the manufacturer's website. A technician does not need to install a new chip, because firmware is upgraded via software. It's unlikely that the manufacturer will send you the upgrade on a DVD; it will refer you to its website to download it.

If you are going to run a network cable in the space above the drop ceiling in your office, which type of cable should you use? A. Plenum B. PVC C. Coaxial D. Fiber-optic

A. For areas where a cable must be fire retardant, such as in a drop ceiling, you must run plenum-grade cable. Plenum refers to the coating on the sleeve of the cable, not the copper or fiber within the cable itself. PVC is the other type of coating typically found on network cables, but it produces poisonous gas when burned.

What voltage does the corona wire or corona roller hold? A. +600VDC B. -600VDC C. 0VDC D. -100VDC

A. For the toner (which has a charge of -600VDC) to be transferred from the print drum (which has a charge of -600VDC) to the paper, there must be a positive, or opposite, charge of greater difference to break the -600VDC charge from the drum.

You have a mobile touch screen device with a screen size of 11″. What is the most likely classification of this device? A. Tablet B. Phablet C. Smartphone D. GPS

A. Tablets generally have a screen size between 7″ and 13″. Phablets were historically between 5″ and 7″, and smartphones are smaller than phablets. GPS touch screens are usually around the same size as the screens on smartphones.

Which of the following best describes the concept of hot-swappable devices? A. Power does not need to be turned off before the device is inserted or removed. B. The device can be removed with power applied after it is properly stopped in the operating system. C. Care must be taken when swapping the device because it can be hot to the touch. D. The device can be swapped while still hot, immediately after powering down the system.

A. Hot-swappable devices can be removed while the power to the system is still on. Warmswappable devices need to be stopped in the operating system before being removed. The term has nothing to do with the heat level of the device.

You have an inkjet printer. Recently, papers are being printed with excessive amounts of ink, and the ink is smearing. What is the most likely cause of the problem? A. A faulty ink cartridge B. A corrupt print driver C. A faulty fuser D. Too much humidity in the air

A. If an ink cartridge is faulty or develops a hole, it can release excessive amounts of ink, which will lead to smearing. A corrupt print driver would result in printing garbage. Inkjet printers do not have a fuser. Excessive humidity may cause smearing, but it wouldn't cause the disbursement of too much ink.

Which Ethernet specification would you be running if you needed to make a connection of 10 Gbps over a distance of 5 kilometers? A. 10GBaseER B. 10GBaseT C. 10GBaseSR D. 10GBaseLR

A. If you need to make a connection that is 5 kilometers long, then you are limited to fiber-optic cable—specifically, single-mode fiber (SMF). The two common SMF standards are 10GBaseER and 10GBaseEW. (Think of the E as extended.) A T designation in an Ethernet standard refers to twisted pair. SR and LR are fiber standards that do not stretch for 5 kilometers.

Your friend Joe wants to add another hard drive to his computer. What should he check to make sure that his system will support it? A. PSU B. Expansion slots C. CPU D. RAM

A. Joe needs to make sure his power supply unit (PSU) has a free connector, as well as enough power to supply the drive. Hard disk drives do not use expansion slots. The CPU and RAM are indifferent to how many hard drives a computer has installed.

Laptops and other portable devices utilize which expansion card? A. MiniPCI B. PCIe C. PCI D. SATA

A. Laptops and other portable devices utilize an expansion card called the miniPCI. It has the same functionality as the PCI but has a much smaller form factor. PCI and PCIe are used in desktops. SATA is a drive connector.

A user has requested a laptop memory upgrade. The technician attempts to put in new memory, but the memory module is barely too wide for the slot. What is the most likely scenario? A. The technician is trying to install DDR4 into a motherboard with DDR3 slots. B. The technician is trying to install DDR3 into a motherboard with DDR4 slots. C. The technician is trying to install MicroDIMMs into SODIMM slots. D. The technician is trying to install DIMMs into SODIMM slots.

A. Laptops use SODIMMs (or possibly MicroDIMMs), which are much smaller than standard DIMMs used in desktops. DDR2 and DDR3 SODIMMs are 67.6 millimeters wide, whereas DDR4 SODIMMs are 69.6 millimeters wide. It's likely that the technician has DDR4 SODIMMs and the motherboard supports DDR3 SODIMMs.

You are assembling a new computer and are looking at new cooling systems. Which of the following cooling systems requires the use of a pump? A. Liquid B. Thermal paste C. Heat sink D. Heat sink plus fan

A. Liquid cooling systems require a reservoir of liquid and a pump to circulate the liquid. It's possible that the system could malfunction, causing a mess inside the computer. Thermal paste is used to adhere a heat sink to a processor. Heat sinks and fans do not use pumps.

Which of the following is a specification for internally mounted computer expansion cards and associated connectors that replaces the mSATA? A. M2 B. NVME C. SATA D. SATA 2.5

A. M.2, formerly known as the Next Generation Form Factor (NGFF), is a specification for internally mounted computer expansion cards and associated connectors. It replaces the mSATA standard. M.2 modules are rectangular, with an edge connector on one side, and a semicircular mounting hole at the center of the opposite edge. Non-Volatile Memory Host Controller Interface Specification (NVME) is an open logical device interface specification for accessing nonvolatile storage media attached via a PCI Express (PCIe) bus. Serial ATA and serial ATA 2.5 are computer bus interfaces that connects host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives.

Which is the most common pin code when selecting discovered Bluetooth devices? A. 0000 B. 5555 C. 1111 D. 0135

A. Many external devices will ask for a PIN when you select the external device from the list of discovered devices. In many cases, the PIN is 0000, but you should check the manual of the external device.

Multi-touch refers to which feature of a touch screen device? A. The ability to touch multiple parts of the screen at once to provide input B. The ability to touch the screen multiple times consecutively as part of the same input stream C. The ability for multiple people to use the touch screen device D. The ability to use a stylus or a finger as an input device

A. Multi-touch simply means that the touch screen can accept multiple inputs from different parts of the screen at the same time. This allows for functionality such as pinch to zoom. It could mean that multiple people are using the touch screen at once, but it does not have to mean that.

Your friend Joe plays video game tournaments online, and he read in an online forum that he should install multiple GPUs for better speed. You tell him that if he does that, he needs better cooling. Why is high-end cooling a requirement for gaming PCs? A. Multiple GPUs generate more heat and can cause components to fail. B. Gaming controllers have components for tactile realism that generate copious amounts of heat. C. Digital sound cards generate more heat than analog sound cards. D. Placing that many hard drives in such a small space generates too much heat.

A. Multiple video cards (to get multiple GPUs) can be a way to increase video performance. Such a configuration may generate too much heat for conventional cooling to dissipate before the system is damaged. The cooling has no effect on external controllers, and sound cards don't generate much heat, but analog would certainly generate more than digital.

Which of the following is a process whereby not only does the server verify the credential of the client but the client also verifies the credential of the server? A. Mutual authentication B. SSO C. Multifactor authentication D. Biometrics

A. Mutual authentication is a process whereby not only does the server verify the credential of the client but the client also verifies the credential of the server. It adds additional security to the process. Single sign-on is a service that allows users to sign in once and have access to all resources. Multifactor authentication makes use of multiple factors of authentication to increase security. Biometrics is the use of physical factors of authentication.

You are setting up a small office network for a client. Which Internet service would you recommend to provide the best speed? A. DSL B. Dial-up C. Satellite D. BRI ISDN E. PRI ISDN

A. Of the options listed, DSL provides the fastest speed. DSL can easily provide 12 Mbps downloads. Dial-up is limited to 56 Kbps, and BRI ISDN (128 Kbps) and PRI (about 1.5 Mbps) don't even come close. Satellite is also much slower than DSL.

What is the most common reason for an unexpected reboot? A. Overheating B. ESD damage C. RFI D. Memory leak

A. One common reason for shutdowns is overheating. Often when that is the case, however, the system reboots itself rather than just shutting down.

You turn on a desktop computer and it fails to boot. You hear a rhythmic ticking coming from inside the case. What is most likely the problem? A. Failed hard drive B. Failed motherboard C. Failed CPU D. Failed RAM E. A bomb

A. Only components with moving parts can make ticking or clicking noises. (Bombs can too, but hopefully you recognized that as a fake answer!) This question assumes that the hard drive is an HDD and not an SSD, but none of the other components would make a ticking noise.

Which of the following are hard drive connector types? (Choose two.) A. PATA B. SATA C. PCIe D. AGP

A. PATA (parallel ATA) B. SATA ( serial ATA) PCIe- expansion slot Peripheral Component Interconnect AGP - Advanced Graphics Port A, B. Parallel ATA (PATA) and Serial ATA (SATA) are two hard drive connection types. PCIe and AGP are expansion slots.

When installing multiple add-on cards of the same type, which type of cards might you need to bridge together to function as a single unit? A. Video B. Sound C. USB D. eSATA

A. PCIe video cards may be bridged together, enabling two cards to function as one system. Sound cards and I/O expansion cards such as USB and eSATA cards do not have bridging capabilities.

What are the small dots on the screen that are filled with a color? A. Pixels B. Hypervisors C. Cells D. Capacitors

A. Pixels are the small dots on the screen that are filled with a color; as a group they present the image you see on the screen.

You have been asked to identify the right type of cloud service to help the team of developers to provide programming elements such as runtime environments. Which service do you recommend? A. PaaS B. IaaS C. SaaS D. DaaS

A. Platform as a Service (PaaS) is probably the right level of service for the developer team. It provides infrastructure, like IaaS, and also supplies needed programming elements.

When replacing a power supply, which of the following tends to vary among power supplies and must be chosen properly to support all connected devices? A. Wattage B. Voltage C. Amperage D. Resistance

A. Power supplies are rated in watts. When you purchase a power supply, you should make sure the devices inside the computer do not require more wattage than the chosen power supply can offer. The voltage is fairly standard among power supplies, and it has nothing to do with the devices connected to the power supply. Amperage and resistance are not selling points for power supplies. Another thing that could vary is the number of power connectors—make sure the new power supply has enough to support all installed peripherals.

Which components in your computer store data? (Choose three.) A. RAM B. SSD C. PCI D. PSU E. BD-ROM

A. RAM B. SSD E. BD-ROM PCI - Peripheral Component Interconnect - Expansion Slot PSU - Power Supply Unit RAM is memory, which is a temporary data storage area. SSD is a type of hard drive, and BD-ROM discs store data as well. PCI is an expansion slot type, and PSU is a power supply unit.

What devices transfer packets across multiple networks and use tables to store network addresses to determine the best destination? A. Routers B. Bridges C. Hubs D. Switches

A. Routers are designed to route (transfer) packets across networks. They are able to do this routing, determining the best path to take, based on the internal routing tables that they maintain.

Which of these is a secure protocol for transferring files? AƆSFTP BƆFTP CƆHTTP DƆUSB

A. SFTP is a secure form of File Transfer Protocol (FTP). HTTP is the protocol for web pages. USB is a type of external port on a PC.

A technician is configuring a mobile client to use email through an ISP. Which port number should he configure to use SMTP? A. 25 B. 110 C. 143 D. 995

A. SMTP sends mail to the server on TCP port 25. POP3 uses port 110. IMAP4 uses port 143. POP3 uses port 995 securely over SSL or TLS.

A user complains of smoke and a foul odor coming from his desktop computer, so he shut it down. Which component is most likely causing the problem? A. Power supply B. RAM C. CPU D. Motherboard

A. Smoke and foul odors such as burning smells are not normal for computers! The most likely component causing the problem is the power supply. With the system off, open the case to examine the inside for possible physical damage.

What is the benefit derived from using hardware-assisted virtualization? A. Better performance B. Better security C. Less power consumption D. Easier troubleshooting

A. Some of the virtualization products, however (such as Microsoft's Hyper-V, Windows 7 Virtual PC, and Windows 8 Client Hyper-V), require that the motherboard support hardware-assisted virtualization. The benefit derived from using hardware-assisted virtualization is it reduces overhead and improves performance. It does not improve security, lower power consumption, or ease troubleshooting.

Your Core i5 fan has a four-pin connector, but your motherboard only has a single threepin header with the CPU_FAN label. Which of the following will be the easiest solution to get the necessary cooling for your CPU? A. Plug the four-pin connector into the three-pin header. B. Buy a four-pin to three-pin adapter. C. Leave the plug disconnected and use only the heat sink. D. Add an extra chassis fan.

A. The easiest solution that works to cool your CPU is to connect the four-pin connector into the three-pin header. The missing pin allows you to control the speed of the fan. Without it, the fan will run at top speed, which is fine, albeit a little noisier. There is no four-pin to three-pin power adapter. The heat sink alone should not be relied upon for proper cooling of modern CPUs, and an extra chassis fan isn't designed to specifically help cool the CPU.

Which step in the EP imaging process uses a laser to discharge selected areas of the photosensitive drum, thus forming an image on the drum? A. Exposing B. Transferring C. Developing D. Cleaning

A. The exposing step uses a laser to discharge selected areas of the photosensitive drum, thus forming an image on the drum.

What part of a laser printer supplies the voltages for charging and transferring corona assemblies? A. High-voltage power supply (HVPS) B. DC power supply (DCPS) C. Controller circuitry D. Transfer corona

A. The high-voltage power supply (HVPS) is the part of the laser printer that supplies the voltages for charging and transferring corona assemblies.

What command would you use on a Mac to determine your TCP/IP configuration information? A. ifconfig B. ipconfig C. ipinfo D. tcpipconfig

A. The ifconfig command is used on Macs and in Linux and UNIX to show your IP address and other TCP/IP configuration information.

Which of the following most accurately describes what an IMEI is? A. The phone's serial number B. The description of the user and mobile network C. The carrier code D. The code used for NFC pay applications

A. The international mobile equipment identity (IMEI) is a 15-digit serial number that is unique to each phone. The international mobile subscriber identity (IMSI) is a unique 15-digit identifier that describes a specific mobile user and their network. The secure element identifier (SEID) is a very long hexadecimal code that uniquely identifies the phone; it is used in security applications, NFC, and features like Apple Pay.

Your laser printer keeps printing vertical black lines on its output pages. What is the most likely cause of the problem? A. There is a groove or scratch in the EP drum. B. The EP drum-cleaning blade is broken. C. The printer is low on toner. D. The transfer corona wire is not working properly.

A. The most likely cause is a groove or a scratch in the EP drum. Toner is collecting in that groove or scratch, and then it is being deposited onto the page. A broken drum-cleaning blade would result in unreadable images (too much toner). Low toner would cause faded images, and a bad transfer corona wire would cause blank images.

A user complains that his mouse cursor randomly jumps to different places on the screen when he types. Which device might you want to disable to prevent this from happening? A. Touchpad B. Mouse C. Point stick D. Trackball

A. The touchpad sits below the keyboard, where a user's palms may rest when he is typing. That contact may cause the mouse cursor to appear to jump on the screen. Disabling the touchpad should prevent this from happening.

Which interface is the most common port found on mobile devices? A. USB B. Serial C. Thunderbolt D. PS/2

A. The two most common ports found on mobile devices are micro-USB and mini-USB. Both are small-form-factor implementations of the USB standard, the latest of which is USB 3.1. Thunderbolt ports are most likely to be found on Apple laptops, but they are now showing up on others as well. Serial and PS/2 connecters are rarely found on mobile devices.

Which of the following is a large circuit board that acts as the motherboard for the printer? A. Printer controller B. Imaging drum C. Toner cartridge D. Maintenance kit

A. This is a large circuit board that acts as the motherboard for the printer. It contains the processor and RAM to convert data coming in from the computer into a picture of a page to be printed. The imaging drum is the drum where the toner is placed on the correctly charged area. The toner cartridge is the container holding the toner. The maintenance kit contains items that should be changed periodically like rollers.

You are running virtual machines on a single physical server. The server operating system does not run any other applications and is dedicated to virtualization. What type of hypervisor is this? AƆType 1 BƆType 2 CƆType 3 DƆType 4

A. Type 1 hypervisors run directly on the physical hardware and are dedicated to running virtual machines. Type 2 hypervisors are not dedicated to virtualization; they run within an existing operating system that can do more than run virtual machines. Type 3 and Type 4 are not valid hypervisor types.

When a company pays another company to host and manage a cloud environment, it is called what? A. Public cloud B. Hybrid cloud C. Community cloud D. Private cloud

A. When a company pays another company to host and manage a cloud environment, it is called a public cloud solution. If the company hosts this environment itself, it is a private cloud solution. A hybrid cloud solution is one in which both public and private clouds are part of the solution. A community cloud is one in which multiple entities use the cloud.

When using the AT power connector, the power cable coming from the power supply will have two separate connectors, labeled what? A. P8 and P9 B. P1 and P2 C. P9 and P10 D. P2 and P3

A. When using the AT power connector, the power cable coming from the power supply will have two separate connectors, labeled P8 and P9. When you are attaching the two parts to the motherboard, the black wires on one should be next to the black wires on the other for proper function.

Which of the following is a class of devices that specializes in tracking your movement? A. Fitness monitor B. Extended reality C. Smartphones D. Tablets

A. While many smart watches can also act as fitness monitors, there is a class of devices that specializes in tracking your movement. Fitness monitors read your body temperature, heart rate, and blood pressure. Extended reality is an exciting new field that includes both augmented reality and virtual reality. Today's smartphones are really computers that can make calls, and tablets have been in existence in some form or fashion since the early 1990s. Early on they were proprietary devices that didn't have a lot in common with desktop computers, but increasingly the two form factors have gravitated toward one another.

Which of the following is used to attach media connectors to the ends of cables? A. Crimper B. Cable stripper C. Multimeter D. Tone generator

A. Wire crimpers look like pliers but are used to attach media connectors to the ends of cables. A cable stripper is used to remove the outer covering of the cable to get to the wire pairs within. A multimeter combines a number of tools into one. There can be slight variations, but a multimeter always includes a voltmeter, an ohmmeter, and an ammeter (and is sometimes called VOM as an acronym). A toner probe has two parts: the tone generator (called the toner) and the tone locator (called the probe). The toner sends the tone, and at the other end of the cable, the probe receives the toner's signal. This tool makes it easier to find the beginning and end of a cable.

A user tells you that his Android phone case is bulging, and the device has been hot to the touch lately. You suspect a swollen battery. Which of the following is a good next step? A. Replace the device. B. Leave the device on to drain the battery, and then recharge the device. C. Turn the device off, let it cool to room temperature, and then recharge the device. D. Use the battery calibration utility. E. Freeze the system.

A. With a swollen battery, the best solution is to replace the device. If you are experienced with mobile device batteries, you may be able to replace the battery, but be careful! You should not charge a swollen battery or freeze the system. A battery calibration utility will do no good.

You are sitting in a coffee shop and using the public wireless network. You suddenly notice suspicious activity on your laptop. Which laptop feature should you use? A. Wi-Fi function key B. Cellular function key C. Bluetooth function key D. Laptop lock

A. Your best bet is to turn off your wireless connection immediately in order to sever the tie between your laptop and the public network. This is done using the Wi-Fi function key. Cellular and Bluetooth are different wireless connections. A laptop lock prevents a device from being physically stolen.

Jason recently purchases a wearable fitness tracker to count the number of steps he is taking each day. Which of the following technologies is used to determine how many steps he takes each day? ​ Digitizer ​ Inverter ​ Accelerometer NFC

Accelerometer OBJ-1.4: Most wearable fitness devices come with a 3-axis accelerometer to track movement in every direction. Some more advanced trackers will also use a gyroscope to measure the orientation and rotation of the device. However, the accelerometer is still the crucial component to measure the activity of the user. The data collected is then converted into steps and activity and from then into calories and sleep quality.

You are setting up a hotel ballroom for a training workshop. Which of the following devices would BEST allow the conference attendees to connect their laptops to the hotel's network when inside the conference areas? ​ Access Point Router ​ Switch ​ Hub

Access Point OBJ-2.2: A wireless access point (WAP), or access point, connects directly to a wired local area network, typically Ethernet, and the AP then provides wireless connections using wireless LAN technology, typically Wi-Fi, for other devices to use that wired connection. APs support the connection of multiple wireless devices through their one wired connection. While a switch or hub could be used instead, either of these options would require the staff to run 20 cables to the conference attendees that are time-consuming and more expensive than simply offering a Wi-Fi connection using an access point.

Your son is complaining that his smartphone is broken. He tells you that he cannot connect to the internet, nor can he make or receive phone calls and text messages. You ask him to start up the music player on his phone, and he can open it without any issues. It appears the common issue has to do with his device's network connectivity. Which of the following is MOST likely the problem with your son's phone? ​ The Bluetooth connection is disabled ​ The VPN password was entered incorrectly ​ Airplane mode is enabled on the device ​ The cellular radio in it is broken

Airplane mode is enabled on the device OBJ-1.6: If the smartphone is functioning properly except for applications that require network connectivity, then the issue is either a misconfiguration (like enabling airplane mode by mistake), a defective cellular radio chip, or a similar issue. The most likely cause is that your son accidentally enabled the airplane mode on the device, which will turn off the cellular radio for the smartphone and cause the network connectivity to be lost. It would help if you first verified that airplane mode is disabled and that the cellular radio is enabled. If that doesn't solve the problem, you can investigate whether it is a hardware issue (such as a broken cellular radio chip).

When connecting a Bluetooth device to a mobile device, which of the following best describes the purpose of discovery mode? ​ Allows a peripheral to be contacted by the mobile device ​ Instructs the phone to seek out all nearby devices and connect to them ​ Disconnects all devices and connects to the closest powered on device ​ Allows two Bluetooth devices to connect to each other without a mobile device

Allows a peripheral to be contacted by the mobile device Correct Answer: Discovery mode enables a mobile device to "discover" a bluetooth peripheral so they can connect. Incorrect Answers: Discovery mode doesn't do any of the other things.

A laptop is setup at a podium for a presentation but is set to extended desktop. The presenter would like it to show exactly what the laptop screen is showing.Which of the following would be the QUICKEST way to accomplish this? A. Look for the setting in control panel B. Toggle the dual display function key C. Change the screen orientation D. Reboot the laptop

B

Which of the following application types is MOST often used for doing a mail merge? A. PDF software B. Word processor C. Presentation software D. Personal information manager

Answer: B Mail merge lets you create a batch of documents that are personalized for each recipient. For example, a form letter might be personalized to address each recipient by name.

What can you use to prevent ESD from damaging components when cleaning inside a computer? AƆAntistatic wrist strap. BƆAntistatic bag. CƆAntistatic wipe. DƆESD presents no danger to components, so nothing special is needed.

AƆAntistatic wrist strap. A. Connect to the power supply with an antistatic wrist strap to protect the PC from ESD.

In what type of computer is SODIMM memory used? AƆLaptop BƆDesktop CƆServer DƆSmartphone

AƆLaptop A. SODIMM is a small-outline DIMM used in a laptop PC. Desktops and servers use regular DIMMs. A smartphone has built-in memory.

What are the two functions of a desktop PC's power supply? (Choose two.) AƆSteps down the voltage BƆIncreases the voltage CƆConverts AC to DC DƆConverts DC to AC

AƆSteps down the voltage CƆConverts AC to DC A, C. A desktop power supply converts 110 V AC current from the wall to DC current in the range of +3.3 V to +12 V.

A SOHO environment utilizes network hardware address filtering to minimize unauthorized use of its network infrastructure. A technician has been asked to install a shared network printer in the environment. Which of the following MUST the technician know in order to add the printer to the environment? A. IP address of the printer B. MAC address of the printer C. Subnet mask of the network D. Firmware version of the printer

B

A client has an issue with large files taking a long time to open or save. As time goes by, the issue worsens. The client has hundreds of GBs of files that are still in the process of backing up. The technician has verified that the hard drive is healthy and there are no signs of failure. Which of the following troubleshooting steps should the technician perform NEXT? A. Install the latest drivers from the hardware vendor. B. Perform a scan of the drive for file fragmentation. C. Run chkdsk on the workstation's hard drive. D. Reformat the drive and reinstall the OS.

B

A customer is terminating an employee for suspected activity that is against company policy. They have called Ann to consult with them on how to best preserve any evidence the company may be required to provide in court. Which of the following would BEST preserve the integrity of the data and best serve the client? A. Create an image of the hard drive and store it on a NTFS drive. B. Remove and secure any HDD from the computer, documenting the process. C. Store the computer in the server room until it is required. D. Lock the user out of the computer and let another employee use it until needed.

B

A customer wants the thinnest laptop possible. Which of the following display technologies typically allows for thinner devices? A. IPS B. OLED C. LCD D. DisplayPort

B

You are choosing an optical drive format for a client. Which optical disc format supports a data capacity of 25 GB? A. Double-sided, double-layer DVD+R B. Single-sided, single-layer Blu-ray Disc C. Double-sided, single-layer DVD-R D. Double-sided, single-layer DVD+R

B. Blu-ray discs have a single-sided, single-layer capacity of 25 GB. A double-sided, single layer DVD can store about 9.4 GB, and a double-sided, double-layer DVD can store about 171 GB.

A field technician reports back that the computer she is troubleshooting has exposed distended capacitors. Which component has most likely failed? A. Power supply B. Motherboard C. CPU D. RAM

B. Capacitors store energy and are located on the motherboard and inside the power supply. Since the capacitors are exposed, it likely means the technician is seeing the problem on the motherboard. CPUs and RAM do not have capacitors.

A customer wants to transfer data from the DVR to a DVD. Which of the following should be used on a workstation in order to extract the data for archiving? A. Optical drive B. Capture card C. Thunderbolt D. External storage

B. Capture card

________________ is the type of media access method used by NICs that listen to or sense the cable to check for traffic and send only when they hear that no one else is transmitting. A. Token passing B. CSMA/CD C. CSMA/CA D. Demand priority

B. Carrier Sense Multiple Access with Collision Detection (CSMA/CD) specifies that the NIC pause before transmitting a packet to ensure that the line is not being used. If no activity is detected, then it transmits the packet. If activity is detected, it waits until it is clear. In the case of two NICs transmitting at the same time (a collision), both NICs pause to detect and then retransmit the data.

Which cable type transmits data at speeds up to 100 Mbps and was used with Fast Ethernet (operating at 100 Mbps) with a transmission range of 100 meters? A. Cat 4 B. Cat 5 C. Cat 5e D. Cat 6

B. Cat 5 transmits data at speeds up to 100 Mbps and was used with Fast Ethernet (operating at 100 Mbps) with a transmission range of 100 meters. It contains four twisted pairs of copper wire to give the most protection. Although it had its share of popularity (it's used primarily for 10/100 Ethernet networking), it is now an outdated standard. Newer implementations use the 5e standard. Cat 4 transmits at 16 Mbps, and Cat 6 transmits at 1 Gbps.

Which of the following cable types delivers a signal over a single pin connector? A. Ethernet B. Coaxial C. S-video D. DVI

B. Coaxial

Which of the following is a rewritable optical disc? A. CD B. CD-RW C. DVD D. CD-ROM

B. Compact Disc-ReWritable (CD-RW) media is a rewritable optical disc. A CD-RW drive requires more sensitive laser optics. It can write data to the disc but also has the ability to erase that data and write more data to the disc. CD, DVD, and CD-ROM are all read-only.

Which RAM type is not compatible with any earlier type of random-access memory? A. DDR5 B. DDR4 C. DDR3 D. DDR2

B. DDR4 SDRAM is an abbreviation for double data rate fourth-generation synchronous dynamic random-access memory. DDR4 is not compatible with any earlier type of randomaccess memory (RAM). The DDR4 standard allows for DIMMs of up to 64 GB in capacity, compared to DDR3's maximum of 16 GB per DIMM. DDR3 and DDR2 are backward compatible, and there is no DDR5

Which type of server resolves IP addresses to hostnames? A. HTTP B. DNS C. DHCP D. SQL

B. DNS servers resolve IP addresses to hostnames. HTTP servers are web servers. DHCP servers provide automatic IP configurations. SQL is a database server.

Which of the following resolutions is an example of a 16:10 aspect ratio? A. 1280 x 1024 B. 1920 x 1200 C. 800 x 600 D. 2048 x 1536

B. Dividing 16 by 10 produces a value of 1.6. Dividing the first number of a 16:10 resolution by the second number always results in 1.6. Therefore, the answer is 1920 Å~ 1200. Resolutions with a 4:3 aspect ratio produce the value 1.33, while 5.4 resolutions such as 1280 Å~ 1024 produce the value 1.25. 16:9 aspect ratios have a value of 1.78.

You have been asked by your manager to brief the group on security appliances. What is the difference between IDS and IPS? A. IDS is active, whereas IPS is passive. B. IDS is passive, whereas IPS is active. C. IDS monitors internal network traffic, whereas IPS monitors traffic coming from the Internet. D. IDS monitors traffic coming from the Internet, whereas IPS monitors internal network traffic.

B. IDS devices are passive. They will detect, log, and perhaps send an alert, but that's it. An IPS can take active steps to shut down an attack if it detects one. Both devices will monitor internal network traffic as well as incoming traffic.

Users are complaining that their print jobs are not printing. You open the print queue and see 50 jobs lined up. The printer is connected properly and online. What should you do? A. Open Printer Troubleshooting and have it diagnose the problem. B. Stop and restart the print spooler. C. Delete and reinstall the printer. D. Delete and reinstall Windows.

B. If print jobs are seemingly getting "stuck" in the printer queue, you should stop and restart the print spooler service. There is no Printer Troubleshooting utility. Deleting and reinstalling the printer and/or Windows is not necessary.

You turn on a laptop computer and the hard drive is not recognized. Where should you go to troubleshoot the issue? A. S.M.A.R.T. diagnostics B. BIOS/UEFI C. Windows Device Manager D. Boot sector manager

B. If the hard drive is not recognized, the BIOS/UEFI is the place to check. Most systems do not come with built-in S.M.A.R.T. diagnostics software, even if the hard drive is capable of gathering S.M.A.R.T. data. And if there were one, it would give you potential errors on a working drive. Windows Device Manager is inaccessible without the drive being recognized. There is no boot sector manager, although this issue could be related to the boot sector.

Which device in an inkjet printer contains the print head? A. Toner cartridge B. Ink cartridge C. Daisy wheel D. Paper tray

B. In an inkjet printer, the ink cartridge is the actual print head. This is where the ink is expelled to form letters or graphics. Toner cartridges are used by laser printers to store toner. A daisy wheel is the device that impacts the letters on the paper in a daisy-wheel printer. Paper trays are the storage bins in laser printers and inkjet printers that allow the pickup rollers to feed the paper into the printer.

The display on your laptop appears warped and fuzzy. You plug in an external monitor, and the image on it is fine. What is the most likely cause of the problem? A. The video card B. The LCD display C. The motherboard D. The video driver

B. It has to be a problem with the LCD display. If it were the video card, the display would appear warped and fuzzy on the external monitor as well. While many motherboards contain video circuitry, this answer is not specific enough. If the video driver were corrupted, you would have the same problem on all displays.

A technician has a work order to install a USB 3.0 expansion card into a PC. The expansion card is a PCI Express 1.1 compliant card and the motherboard has one PCI Express 2.0 slot available. Which of following BEST represents the compatibility between the hardware? A. It will not install correctly, and the PCI slot is already being used by the video card. B. It will install correctly to the PCI Express slot onto the motherboard. The card should function correctly, as the PCI Express 2.0 slot is backwards compliant. C. It will not install correctly into the PC, as the 1.1 and 2.0 slots are not compatible. D. It will install correctly, but the card will not operate as the PCI Express 1.1 and the PCI Express 2.0 standards are completely different.

B. It will install correctly to the PCI Express slot onto the motherboard. The card should function correctly, as the PCI Express 2.0 slot is backwards compliant.

Which of the following statements about configuring email access on a mobile device is true? A. Most Internet mail services offer an Exchange option. B. The TCP ports used for configuring access are usually standard port numbers. C. Most ports used for access are UDP ports. D. You must download third-party apps for connecting to email services.

B. Mail access uses standard secure or unsecure TCP ports, not UDP ports. Exchange access to such mail services is not unheard of, but it is exceedingly rare. Mobile devices tend to have email clients built in.

You are configuring a virtualization workstation for your home use. Which of the following is required for your new system? A. Multiple host operating systems B. Maximum RAM allowed C. File sharing services D. Multiple NICs

B. Maximum RAM and CPU cores are the primary requirements for such systems. Although there are multiple guest operating systems, generally there is but one host to those guests. File sharing may be a service the administrator decides to offer, and multiple NICs might prove advantageous with virtual machines that are popular among the clients, but these workstations do not require either.

Which of the following is a collection of two or more LANs, typically connected by routers and dedicated leased lines? A. WAN B. MAN C. PAN D. WMN

B. Metropolitan area network (MAN) is the term occasionally used for a WAN that is confined to a certain geographic area, such as a university campus or city. A personal area network (PAN) is a LAN created by personal devices. A wide area network (WAN) is a collection of two or more LANs, typically connected by routers and dedicated leased lines. Wireless mesh networks (WMN) are a form of an ad hoc WLAN that often consist of mesh clients, mesh routers, and gateways.

You need to set up a Bluetooth headset for a user. He wants to know the farthest he can be away from his phone and still have it work. You do not have the documentation handy. What is the most likely maximum range that this Bluetooth accessory will have? A. 10 centimeters B. 10 meters C. 100 meters D. 1 kilometer

B. Most mobile Bluetooth accessories are Class 2 devices, which have a maximum functional range of 10 meters. The actual range will depend on the headset's properties.

Which of the following should not be used more than once? A. Toner B. Paper C. Cable D. Inkjets

B. Never reuse paper in a laser printer that has been through the printer once. Although it may look blank, you're repeating the charging and fusing process on a piece of paper that most likely has something already on it.

You have just found out that a new BIOS upgrade exists for your computer, and you obtain a copy to install it. Which of the following is most helpful when flashing the BIOS on a desktop computer system? A. DVD-ROM B. Uninterruptable power supply C. Internet connection D. Windows administrator password

B. None of the options are required, but a UPS is by far the most helpful among the answers in that loss of power during this procedure can range from annoying to devastating.

Which of the following is the ability to add resources as needed on the fly and release those resources when they are no longer required? A. On-demand B. Rapid elasticity C. Virtual sharing D. Stretched resources

B. One of the advantages of a cloud environment is the ability to add resources as needed on the fly and release those resources when they are no longer required. This makes for more efficient use of resources, placing them where needed at any particular point in time. These include CPU and memory resources. This is called rapid elasticity because it occurs automatically according to the rules for resource sharing that have been deployed. On-demand refers to the ability of the customer to add resources as needed. Virtual sharing and stretched resources are not terms used when discussing the cloud.

A technician asks you how to get a computer's processor to run faster than it currently does. What is he trying to achieve? A. Hyperthreading B. Overclocking C. Virtualization D. Multicore support

B. Overclocking is when someone sets the speed of the processor to run faster than it was rated for. While overclocking can make a computer faster, it can also cause the processor to overheat, and it voids the warranty. Hyperthreading allows for a processor core to handle multiple processes simultaneously. Virtualization is when you create multiple virtual machines on a computer. Multicore means that the processor has more than one core—it's not a configurable option.

You need to install a new video card into a desktop computer. What type of expansion slot is preferred today for high-performance graphics adapters? A. AGP B. PCIe C. PCI D. SATA

B. PCIe is the newest and fastest slot for video cards. AGP and PCI are legacy technologies. SATA is for hard drives.

hich of the following cable connection types is an example of a mini DIN? A. BNC B. PS/2 C. RCA D. DB9

B. PS/2

Which of the following is not an example of a connector for a standard peripheral input device? A. 1/8″ jack B. Molex C. D-sub D. USB

B. Peripherals most often use USB today, but they can also use D-sub connectors (rarely), and audio devices such as microphones and speakers use 1/8″ jacks. Molex connectors are power connectors for PATA hard drives and optical drives.

Which of the following is not a consideration when upgrading power supplies? A. You might find that you do not have a matching motherboard connector on your new power supply. B. You might find that your case has a nonremovable power supply. C. You might find that your power rating is not adequate on the new power supply. D. You might find that you do not have enough of the appropriate connectors coming from the power supply for the devices that you have installed.

B. Personal computers do not have permanently installed power supplies. Like other electrical and electronic components, power supplies can and do fail on a regular basis. Permanently mounting a power supply to a chassis would be a disservice to the consumer. You should consider the cumulative power needs of your installed components, and you might have to obtain adapters and splitters if you do not have enough or you have the wrong types of connectors coming from the power supply.

Which RAM type is used in laptops? A. DIMM B. SODIMM C. Rambus D. BNC

B. Portable computers (notebooks and subnotebooks) require smaller sticks of RAM because of their smaller size. One of the two types is small outline DIMM (SODIMM), which can have 72, 144, or 200 pins. DIMM is a full-size RAM type. Rambus is a type of RAM but not used in laptops, and BNC is a connector for coaxial cabling.

Which of the following technologies can operate in the 125 kHz to 134 kHz range? A. Bluetooth B. RFID C. NFC D. LTE

B. Radio frequency identification (RFID) can operate in three frequency bands: 125 kHz to 134 kHz, 13.56 MHz, or 856 MHz to 960 MHz. Bluetooth is 2.4 GHz; NFC is 13.56 MHz; and LTE is between 600 MHz and 6 GHz.

What type of device will block unwanted traffic from your network using a set of rules called an ACL? A. Router B. Firewall C. Bridge D. NAS

B. The job of a firewall is to block unwanted network traffic. Firewalls do this by using a list of rules called an access control list (ACL). Routers connect networks to each other, as do bridges. A network attached storage (NAS) device is like a dedicated file server.

You need to replace memory in a desktop PC and to go purchase RAM. When you are at the store, you need to find the appropriate type of memory. What memory chips would you find on a stick of PC3-16000? A. DDR-2000 B. DDR3-2000 C. DDR3-1600 D. PC3-2000

B. Remember the 8:1 rule. Modules greater than but not including SDR SDRAM are named with a number eight times larger than the number used to name the chips on the module. The initials PC are used to describe the module; the initials DDR are used for the chips; and a single-digit number after PC and DDR is used to represent the level of DDR. The lack of a single-digit number represents DDR as long as the number that is present is greater than 133 (such as PC1600). Otherwise, you're dealing with SDR (such as PC133). This means that PC3-16000 modules are DDR3 modules and are populated with chips named DDR3 and a number that is one-eighth of the module's numeric code: 2000.

You need to configure email for a mobile client. His device has a setting referring to port 587. Which mail protocol is likely using this protocol? A. SMTP with SSL B. SMTP with TLS C. IMAP4 with SSL/TLS D. POP3 with SSL/TLS

B. SMTP with TLS uses port 587 by default. With SSL, SMTP uses port 465. IMAP4 with SSL/TLS uses port 993, while POP3 with SSL/TLS uses port 995.

Which the following uses port 22? A. FTP B. SSH C. Telnet D. POP3

B. SSH uses port 22, POP3 uses port 110, FTP uses ports 20 and 21, and Telnet uses port 23.

You press the front power button on a computer and the system boots. Later, you press it briefly and the system hibernates. When you press it again, the system resumes. You press and hold the button and the system shuts down. What is this feature called? A. Programmable power B. Soft power C. Relay power D. Hot power

B. Soft power is the feature whereby the front power button acts as a relay to initiate various system power changes, depending on the duration that the button is held. Programmable power, relay power, and hot power are not valid power options.

What special screwdriver is typically required to work on a notebook? A. Phillips head B. T-8 Torx C. Hex D. Metric

B. Some models of notebook PCs require a special T-8 Torx screwdriver. Most PC toolkits come with a T-8 bit for a screwdriver with interchangeable bits, but you may find that the T-8 screws are countersunk in deep holes so that you can't fit the screwdriver into them. In such cases, you need to buy a separate T-8 screwdriver, available at most hardware stores or auto parts stores. Phillips-head screwdrivers have a cross pattern on the tip and may be required. Hex heads are another type you may encounter, and metric drivers are those that are sized with the metric system.

A user with an iPhone 7 needs to charge her device and asks you to bring a cable. Which of the following connector types should you ensure that the cable has? A. Thunderbolt B. Lightning C. USB-C D. Micro-USB

B. Starting with the iPhone 5, Apple products use the proprietary Lightning connector for charging and connecting peripherals. Thunderbolt connectors are on MacBooks for peripherals. iPhones do not have built-in USB connectors.

Your friend is concerned about the security of making an online purchase. What should you tell her to look for in the address bar of the web browser? A. HTTP B. HTTPS C. SSH D. TLS

B. The HTTP -port 80- protocol is inherently unsecure, but the HTTPS - port 443 - protocol is secure. (SSH - port 22 -and TLS are secure as well, but they are not protocols used to connect to websites.)

You are setting up a cloud contract with a provider. Your team needs the ability to increase capacity without intervention from the provider. What do you request? A. Rapid elasticity B. On-demand self-service C. Resource pooling D. Measured service

B. The ability to expand services without provider intervention is called on-demand selfservice. Rapid elasticity means you can quickly increase capacity, but it usually requires supplier intervention. Resource pooling is taking resources from multiple machines and making them available as one pool. Measured service is how many suppliers track usage and charge accordingly.

You have implemented a solution that resolved an audio problem on a laptop computer. Following the best practice methodology, what is the next step to take? A. Document findings, actions, and outcomes. B. Verify full system functionality and, if applicable, implement preventive measures. C. Establish a plan of action to resolve the problem. D. Review system and application logs.

B. The fourth step in the best practice methodology is to establish a plan of action to resolve the problem and implement the solution, which was done already. The next step is to verify full system functionality and implement preventive measures. The final step is to document findings, actions, and outcomes. Reviewing system and application logs is part of identifying the problem, which is the first step.

Which of the following is the software that allows the VMs to exist? A. DIMM B. Hypervisor C. Azureware D. NAT

B. The hypervisor is the software that allows the VMs to exist. Dual inline memory module (DIMM) is a type of memory. There is no software called Azureware, and network address translation is a service that translates private IP addresses to public ones.

Which iPhone version introduced the Lightning connector? A. iPhone 4 B. iPhone 5 C. iPhone 6 D. iPhone 8

B. The iPhone 5 was the first iPhone to use the Lightning connector. All newer iPhones use it as well.

You are looking for configuration information for a smartphone. Which code identifies the specific mobile user and their network? A. IMEI B. IMSI C. ICCID D. SEID

B. The international mobile subscriber identity (IMSI) is a unique 15-digit identifier that describes a specific mobile user and their network. The international mobile equipment identity (IMEI) is a 15-digit serial number that is unique to each phone. The integrated circuit card identifier (ICCID) is the identifier for the SIM card. The secure element identifier (SEID) is a very long hexadecimal code that uniquely identifies the phone; it is used in security applications, NFC, and features like Apple Pay.

Your manager tells you to replace the inverter on a broken laptop. Where will you find this component? A. Underneath the keyboard B. In the display C. Next to the heat sink and fan D. Near the CPU

B. The inverter, which transforms AC power into DC power for an LCD backlight, is found in the display. It's not underneath the keyboard, next to the heat sink and fan, or near the processor, which are all located in the bottom half of the laptop.

Which of the following is the final step in the CompTIA troubleshooting method? A. Establish a plan of action to resolve the problem and implement the solution. B. Document findings, actions, and outcomes. C. Establish a theory of probable cause (question the obvious). D. Identify the problem.

B. The steps are as follows: 1. Identify the problem. 2. Establish a theory of probable cause (question the obvious). 3. Test the theory to determine cause. 4. Establish a plan of action to resolve the problem and implement the solution. 5. Verify full system functionality and, if applicable, implement preventive measures. 6. Document findings, actions, and outcomes.

You have been asked to install Linux in a VM on a Windows 10 client. The Windows 10 client needs 4 GB RAM, and Linux needs 2 GB RAM. How much RAM does the system need at a minimum? A. 4 GB B. 6 GB C. 8 GB D. Unable to determine from the question

B. There needs to be enough RAM to support both OSs, so the answer is 6 GB. More is better, though!

You have just replaced a processor in a computer and now need to add a cooling mechanism. What should you use to attach the cooling system to the processor? A. Heat sink B. Thermal paste C. Fan D. Superglue

B. Thermal paste is used to attach heat sinks and fans to processors. A heat sink usually gets attached to the processor using thermal paste, and then the fan is attached to the heat sink. Superglue would make it adhere, but it does not transfer heat properly—it would likely melt and cause a mess.

Which type of system simply needs to meet recommended requirements for standard versions of operating systems and support desktop applications? A. Thin client B. Thick client C. Network-attached storage device D. Virtualization workstation

B. Thick clients are standard desktop PCs. They stand in contrast to systems with specialized requirements, such as the remaining options.

Which of these ports are physically identical? AƆUSB Type-A and USB Type-B BƆThunderbolt and Mini DisplayPort CƆDisplayPort and FireWire DƆDVI and VGA

B. Thunderbolt and Mini DisplayPort are correct. The other pairs are not identical.

Which of the following is a user interface feature designed by HTC? A. Type I B. TouchFLO C. Type II D. Container-based

B. Touch flow, or TouchFLO, is a user interface feature designed by HTC. It is used by dragging your finger up and down or left and right to access common tasks on the screen. This movement is akin to scrolling the screen up and down or scrolling the screen left and right.

The USB connector that plugs into a full-size printer is: AƆType-A BƆType-B CƆMini-B DƆMicro-B

B. Type-B is correct. Type-A is the standard full-size USB connector on a PC. Mini-B and Micro-B plug into smaller devices.

VGA cables use what type of signal between the adapter and monitor? A. Digital B. Analog C. Composite D. Compressed

B. VGA signals are analog, uncompressed, component signals that carry all of the video information for all three components of the original RGB signal. VGA signals are not digital, composite, or compressed.

Danielle has been asked to configure virtualization at her company. She recommends that her manager buy multicore processors. What justification should she give as to why virtualization workstations require as many CPU cores as possible? A. Each virtual machine has one or more cores installed directly in it. B. Each virtual machine makes use of actual CPU resources for processing instructions and data. C. Fault tolerance dictates that if one CPU core fails, there should be one or more in line to take its place. D. Because each guest operating system runs in its own space, multiple cores are required to store the collective data.

B. Virtual machines do not imply virtual processing. The data storage, processing cycles, and RAM usage are all real. The separate hard drive and chassis for each operating system are virtual. The other answers all have at least one fundamental problem with their logic. CPU cores are not installed in virtual machines but in CPU packages within physical machines. CPU cores do not take over for each other. There is no fault tolerance among them. Storing data is the job of RAM, which should also be maximized for virtualization workstations.

Which of the following security standards was the first to introduce a dynamic 128-bit perpacket security key? A. WEP B. TKIP C. AES D. CCMP

B. WEP could use a 64-bit or 128-bit security key, but it was a static key. TKIP introduced a dynamic per-packet key. AES and CCMP came after TKIP.

Which of the following is a description of light output? A. KVM B. Lumens C. Contrast D. CHS

B. When discussing bulbs for projectors, brightness is a description of light output, which is measured in lumens (not watts). Ensure that you are purchasing the correct bulb for the projector and maximize the life of the bulb by turning the projector off when not in use. A keyboard, video, and mouse (KVM) device allows you to plug multiple PCs (usually servers) into the device and to switch easily back and forth from system to system using the same mouse, monitor, and keyboard. Contrast is the relationship between dark and light. CHS is a drive geometry concept.

What is the easiest thing to damage when removing a laptop keyboard? A. The keys B. The data cable C. The plastic cover D. The plastic screws

B. When replacing the keyboard, one of the main things you want to keep in mind is to not damage the data cable connector to the system board.

Which of the following versions of Windows XP would a technician MOST likely install for a small business? A. Windows XP Professional 64-bit B. Windows XP Professional C. Windows XP Media Center D. Windows XP Home

B. Windows XP Professional

Which of the following indicates that the fuser is not fusing the toner properly on the paper? A. Black spots B. Streaks C. Blank spots D. Garbled output

B. With laser printers, streaks usually indicate that the fuser is not fusing the toner properly on the paper. It could also be that the incorrect paper is being used. In laser printers, you can sometimes tell the printer that you are using a heavier paper. For dotmatrix, you can adjust the platen for thicker paper.

If you can ping resources by IP address but not by name, is not functional. A. HTTP B. DNS C. DHCP D. ARP

B. You may be able to ping the entire network using IP addresses, but most access is done by name, not IP address. If you can't ping resources by name, DNS is not functional, meaning either the DNS server is down or the local machine is not configured with the correct IP address of the DNS server.

What type of cable is most commonly used to terminate a serial connection to a modem? ​ RJ-45 ​ DB-9 ​ RJ-11 ​ RG-59

BJ-3.2: A DB-9 is usually used to terminate an RS-232 connection on a serial cable. Coaxial cables are normally terminated using an RG-59 connector but can also use an RG-6 connector. An RJ-45 connector is usually used to terminate an Ethernet cable. An RJ-11 is usually used to terminate a phone line.

A user has reported that their workstation is running slowly. You perform a reboot of their workstation and receive a S.M.A.R.T. error during the boot-up process. Which of the following actions should you perform FIRST? ​ Backup the hard drive ​ Run diskpart ​ Run chkdsk ​ Reformat the hard drive

Backup the hard drive OBJ-5.3: S.M.A.R.T. is an acronym for Self-Monitoring and Repair Tool. It is a feature in all modern magnetic hard drives (non-SSD drives) that monitors the hard drive to ensure it performs properly. S.M.A.R.T. can detect when the failure of a drive is imminent and can alert the user so that they can backup the drive before a complete failure occurs. If your hard drive produces a S.M.A.R.T. failure, you should immediately backup the drive. Once a backup has been completed, you can instead focus on repairing the drive using chkdsk.

Pamela's laptop will start only if the AC adapter is plugged into the laptop. What component/function is most likely to cause this problem? ​ Bad battery interface ​ Bad flyback transformer on laptop ​ Bad AC input port on laptop ​ Bad battery

Bad battery A laptop that works only when the AC adapter is plugged in is a sure sign of a bad battery. Incorrect Answer: If the laptop works when it is plugged in, it's not the AC input port. Flyback transformers are a CRT component. It could be a bad battery interface on the laptop, but it is much more likely the battery itself.

Anytime you hear either a scraping noise or a high-pitched squeal coming from your system, the first item to consider is: ​ Bad DVD drive ​ Bad power supply ​ Bad hard drive ​ Bad fan

Bad hard drive Bad hard drive. These two sounds indicate a hard drive that will soon crash. Make a backup of critical data. Incorrect Answers: Anything that rotates inside your computer is capable of making these sounds. However, given the gravity of the situation if your hard drive fails, you should assume the hard drive first and take action to save your data.

A printer on the second floor is not printing for anyone. However, the printer has power and displays ready on the LCD display. There is paper in the trays and the toner was recently changed. The system administrator goes to the location with a laptop and tests the network port and is able to connect. Jobs are being queued on the local machines. Which of the following should the system administrator do to get the printer functioning again? A. Move the printer to a known good port and connect to the network B. Replace the network cable to the printer C. Verify the server's print spooler service is running D. Attach the printer directly to the laptop and print a test page

C

A technician has been tasked with setting up email on a users phone. The user also wants the email to remain on the server. Which of the following ports would be BEST for setting up the phone? A. 80 B. 110 C. 143 D. 443

C

A technician has upgraded the BIOS of a system that is running with multiple hard drives. Afterward, the system will not boot and displays an error message"Operating system not found". Which of the following is the FIRST thing the technician should inspect? A. The hard drive type settings in the BIOS B. The power supply connections to the hard drives C. The boot sequence settings in the BIOS D. The motherboard SATA connectors Hide Solution

C

A technician installs a new video card in a desktop with onboard video. The technician boots the unit but sees no display. The monitor power light is on and the OS seems to be loading. Which of the following is the MOST likely cause? A. The display is defective. B. The video card needs to be flashed. C. The internal adapter has not been disabled. D. The new video card is defective.

C

A technician is planning on running multimode fiber and only needs the fiber runs to be 500 feet (152 meters) in distance. Which of the following connectors should the technician use? A. BNC B. LC C. ST D. F

C

A technician is troubleshooting a desktop that is having intermittent issues with locking up and system errors. The technician suspects that the problem might be that not enough power is getting to the motherboard. Which of the following tools would a technician use to determine if the hypothesis is correct? A. POST card B. Loopback plug C. Multimeter D. Cable tester

C

A user notices the printer that is used for printing global shippers labels is missing columns in the printed labels. The special label stock is new and appears to be fine. Which of the following should the technician perform FIRST when troubleshooting this problem? A. Remove any stuck labels from the paper path B. Clean the pickup rollers and check them for wear C. Clean the print head with approved materials D. Replace and realign the print head

C

After receiving a call from an executive, a technician walks into a meeting room to find that the projector is not showing the screen of the executives laptop. The projector shows a message that reads "No video signal". Which of the following is the FIRST thing that the technician should do? A. Adjust the laptop's screen brightness B. Replace the projector's bulb C. Verify the VGA cable is connected D. Ensure secondary display is enabled

C

Legacy software needs to be installed on a netbook. Which of the following is MOST likely needed in order to install the software? A. Lightning port B. Bluetooth adapter C. USB optical drive D. NFC chip

C

The technician is repairing a PC which appears to have a failing RAM module. After replacing the module, the extra memory still is not registering. Which of the following is MOST likely the issue? A. Jumper settings are incorrect B. The RAM module is defective C. The memory slot is defective D. CMOS needs to be flashed

C

Which device stores data over the long term? A. CPU B. RAM C. Hard drive D. Video card

C

Which of the following adapters causes the LEAST amount of signal loss? A. VGA to DVI B. HDMI to VGA C. DVI to HDMI D. S-video to RCA

C

Which of the following cable types typically transmits the video from an analog security camera back to the CCTV system? A. CAT5e B. CAT6 C. RG-59 D. STP

C

Which of the following characteristics is generally found on a docking station that port replicators do not offer? A. Replicators usually have most USB ports than docks. B. Docks generally do not need separate power to function. C. Docks have independent hardware that replicators lack. D. Replicators have additional NIC that docks lack.

C

Which of the following connectors is commonly known as serial? A. RG-6 B. RJ11 C. RS-232 D. BNC

C

Which of the following connectors provides the capability to pass both analog and digital signals? A. VGA B. BNC C. DVI-I D. USB 3.0

C

Which of the following is a public IP address? A. 10.45.xxx.xxx B. 169.254.xxx.xxx C. 173.16.xxx.xxx D. 192.168.xxx.xxx

C

Which of the following is an advantage of UDP over TCP? A. It is connection based. B. It uses flow control. C. It transfers packets faster. D. It uses connection handshakes.

C

Which of the following is the MAXIMUM number of unique IP addresses on an IPv4 Class A network? A. 254 B. 65 Thousand C. 16.3 Million D. 340 Trillion

C

Which of the following is the maximum throughput of a USB 3.0 connection? A. 800 Mbps B. 3 Gbps C. 4.8 Gbps D. 10 Gbps

C

Which of the following would be used to connect two remote sites? A. Switch B. Access point C. Router D. Hub

C

A customer states that when booting up the workstation, there is a message that says "no operating system detected"; then, it continues to boot into the operating system. The customer is preparing to modify files on a USB drive. Which of the following should a technician perform to resolve the problem? A. Reinstall the operating system to reinstall the hardware drivers. B. Modify the boot.ini within the operating system. C. Modify the boot sequence within the UEFI. D. Disable the TPM chip to turn off data encryption.

C By changing the boot order, you can force your computer to boot from a CD/DVD drive, a floppy drive, a USB drive or even off the network. Changing the boot order on a PC is mostly done in order to boot from a recovery disk or from an OEM disk to run some kind of Windows disinfection or repair software.

A technician upgrades an older computer to Windows 8. The computer is running unusually slow, but the hardware has no problems and is adequate for the OS.Which of the following is the MOST likely solution? A. Change the boot sequence B. Switch the BIOS to UEFI C. Defragment the hard drive D. Enable virtualization

C Defragmentation puts those blocks back in sequential order, so your drive head doesn't have to run around the entire platter to read a single file.

A laptop logon screen can barely be seen, despite adjusting the display's brightness setting. Which of the following display components is defective? A. Backlight B. Digitizer C. Inverter D. Polarizer

C If it is a LED, then backlight

Which of the following is the form factor of a standard Parallel connector? A. DB-9 B. DB-15 C. DB-25 D. DIN-6

C The DB25 (originally DE-25) connector is an analog 25-pin plug of the D-Subminiature connector family (D-Sub or Sub-D). As with the DB9 connector, the DB25 is mainly used for serial connections, allowing for the asynchronous transmission of data as provided by standard RS-232 (RS-232C)

A user is watching streaming video on a home network, but experiences buffering and delays when there are too many people on the network. Which of the following is MOST likely to resolve the issue? A. Disable SSID broadcast B. Setup UPnP C. Enable QoS D. Configure DMZ

C The quality of service option is supposed to help prioritize network traffic

You have a motherboard with integrated video, and the video fails. You install a video addon card. Which of the following statements are the most accurate? (Choose two.) A. The add-on card will not function properly because of the integrated video. B. The add-on card will function if it is bridged to the integrated video chipset. C. The add-on card will be detected automatically and function properly if it's PCIe. D. For the card to work properly, you might need to disable the integrated video in the BIOS. E. The add-on card will work properly by using the integrated card's video driver.

C, D. Most likely, the new card will be detected and function properly once the computer is booted up. However, the driver will need to be installed. Odds are the new card will be a different model from the integrated card, which will require a new driver. On some systems, you will need to go into the BIOS and disable the integrated adapter. Bridging happens between two PCIe video adapters, not an integrated video chipset.

You need to enable clients to synchronize their mobile devices to their laptops. Which of the following are common connection types to enable laptop synchronization? (Choose all that apply.) A. Cellular B. Bluetooth C. Wi-Fi D. USB E. Tethering

C, D. The two most common connection types for synchronization to a desktop (or laptop) are Wi-Fi and USB. Cellular and Bluetooth are not used for desktop synchronization. Tethering is when a laptop or other device is granted cellular network access by connecting to a mobile device, such as a smartphone.

Which two TCP/IP protocols work at the Host-to-Host layer of the DoD model? (Choose two.) A. IP B. ARP C. TCP D. UDP

C, D. The two protocols that work at the Host-to-Host layer are TCP and UDP. IP and ARP both work at the Internet layer.

Which of the following technologies can be accessed through the DisplayPort? (Select TWO). A. USB B. SATA C. DVI D. FireWire E. HDMI

C, E

Which of the following numbers is written in hexadecimal format? A. 100101 B. 3268 C. 18AF D. 100101.11

C. 18AF C. Hexadecimal is also known as base 16. It uses the numbers 1 to 9 and letters A to F.

Which of the following is fed through an extruder on a 3D printer to create objects? A. Plastic B. Metal C. Filament D. Extrusion powder

C. 3D printers use filament to create objects. Filament is often plastic, but it can contain metals too. There is no extrusion powder.

Which of the following has the largest cell size? A. 802.11a B. 802.11b C. 802.11g D. 802.11

C. 802.11g has a distance that is the cell size of 125 ft. The others have a distance of 115 ft.

You are troubleshooting a server and discover that one of the hard drives in the RAID 0 array has failed. Which statement is true? A. You need to replace the failed drive, but the data is okay because the drive is configured as a mirror. B. You need to replace the failed drive, but the data is okay because the drive is configured as a disk stripe with parity. C. You need to replace the failed drive, and the data on the array is lost. D. You do not need to replace the failed drive; the system will function normally.

C. A RAID 0 array is also known as disk striping. RAID 0 actually decreases your fault tolerance versus one hard drive because there are more points of failure. You need to replace the drive, and hopefully you had it backed up so that you can restore the data.

You need to put a connector on the end of an Ethernet crossover cable. The existing end has a white and green colored wire at pin 1. What color do you need to make pin 1 on the new end? A. White/green B. Green C. White/orange D. Orange

C. A crossover cable will flip pins 1 and 3 on each end. Therefore, this end needs to have the white/orange wire as pin 1. The correct order for this cable should be white/orange, orange, white/green, blue, white/blue, green, white/brown, brown.

Which of the following includes a voltmeter, an ohmmeter, and an ammeter? A. Crimper B. Cable stripper C. Multimeter D. Tone generator

C. A multimeter combines a number of tools into one. There can be slight variations, but a multimeter always includes a voltmeter, an ohmmeter, and an ammeter (and is sometimes called VOM as an acronym). Wire crimpers look like pliers but are used to attach media connectors to the ends of cables. A cable stripper is used to remove the outer covering of the cable to get to the wire pairs within. A toner probe has two parts: the tone generator (called the toner) and the tone locator (called the probe). The toner sends the tone, and at the other end of the cable, the probe receives the toner's signal. This tool makes it easier to find the beginning and end of a cable.

Where would you first go on a system to configure Wake on LAN (WOL)? ​ WOL jumper ​ CMOS Setup ​ Command Prompt ​ Device Manager

CMOS Setup Correct: Your first step is to enable WOL in CMOS, then go to Device Manager. Incorrect: There is nothing to do in the command prompt and there is no such thing as a "WOL jumper."

When personal devices include networking capabilities and can communicate directly with one another, they create which type of network? A. WAN B. MAN C. PAN D. WMN

C. A personal area network (PAN) is a LAN created by personal devices. A wide area network (WAN) is a collection of two or more LANs, typically connected by routers and dedicated leased lines. Occasionally, a WAN will be referenced as a metropolitan area network (MAN) when it is confined to a certain geographic area, such as a university campus or city. Wireless mesh networks (WMN) are a form of an ad hoc WLAN that often consist of mesh clients, mesh routers, and gateways.

What is the primary function of the SSID? A. To secure communication between a web server and a browser B. To secure communication between a server and a remote host C. To serve as a parameter used to identify a network and configure a wireless connection D. To serve as a type of password used to secure a wireless connection

C. A service-set identifier (SSID) is the unique name given to the wireless network. All hardware that is to participate on the network must be configured to use the same SSID. Essentially, it is the network name. When you are using Windows to connect to a wireless network, all available wireless networks will be listed by their SSID

Which of the following is a desktop computer system? A. Thin client B. Thick client C. NAS D. SAN

C. A thick client has the applications installed locally and will need to have sufficient resources to support the applications. A thin client only sends commands and displays output with the application on the server. Network attached storage is a storage network that is IP based, while Storage Area Networks use a storage area protocol.

You are installing peripherals on a new computer. Which of the following devices provides both input and output? A. Webcam B. Projector C. Touch screen D. KVM switch

C. A touch screen provides video output, and users can touch the screen to provide input as well. A webcam is for video input, and a projector is for video output. A KVM switch lets users connect one keyboard, video, and mouse set to multiple computers and switch between them.

What type of pointing device features a ball and buttons on the top and a flat, steady surface on the bottom? A. Mouse B. Touch pad C. Trackball D. Track pad

C. A trackball is a sort of stationary upside-down mouse that has the ball for movement detection on the top of the device along with the keys. The ball is actuated by the thumb or fingers, not by moving the device along a flat surface or mouse pad. Trackballs are ideal where desk space is limited. Touch pads feature a touch-sensing surface with no ball for movement, while track pad is a more rare term meaning the same.

You have just completed a backup of your PC onto an optical disc. What is the next step you need to take? A. Store the backup in a secure location. B. Burn the disc to ensure the data is saved. C. Test the backup to verify it works. D. Copy the backup data to a cloud.

C. After completing a backup, you should verify that the backup is working properly.

What should you do for a Li-ion battery that appears to charge fully but does not last as long as the battery's meter indicates that it will last? A. Replace the battery. B. Exercise the battery. C. Calibrate the battery. D. Short the terminals to discharge the battery.

C. Battery calibration for Li-ion batteries allows the powered device to drain the battery's power before recharging. Battery exercising is the initial charging and discharging of nickelbased batteries so that they will function as expected. You should never short a battery's terminals, and replacement is a last resort, used when any battery has reached the end of its life.

Maria is setting up a gaming PC and wants to know which type of video cables to purchase. Which of the following is the recommended video output technology for a gaming PC? A. DVI B. VGA C. HDMI D. YCbCr

C. Because of its exceptional capabilities of digital video and audio output, as well as its potential for support of future standards, HDMI is the video output technology of choice. VGA, DVI, and component video (YCbCr and YPbPr) can't make the same claim.

A technician is troubleshooting an expansion card in a computer that allows the computer to receive faxes over a VoIP line. The line connected to the expansion card is MOST likely which of the following cable types? A. Coaxial B. CAT3 C. CAT6 D. Multi-mode fiber E. Single-mode fiber

C. CAT6 Ethernet cables are commonly called "Cat5" or "Cat6" cables, which causes some confusion. Cat6 cables are newer and better than Cat5, but, if the cables weren't labeled, they'd look exactly the same.

A workstation has RAID 1 and RAID 5 arrays. Although performance is not degraded, management software is reporting a hard disk failure.Which of the following should a technician do NEXT? A. Check one of the RAID 1 disks for failure B. Rebuild the RAID 1 disks for failure C. Check one of the RAID 5 disks for failure D. Rebuild the RAID 5 array

C. Check one of the RAID 5 disks for failure

Your network uses thin clients. A new technician is amazed that the computers have no hard drives and asks, "If the operating system is not resident on the client, where is it found?" A. On a DVD inserted at bootup B. On a USB flash drive C. On the server for session-by-session client use D. Embedded in a flash module on the motherboard

C. Clients request services of servers. Thin clients can request software services from their servers, whether in the form of running the software and passing the results to the client or passing the code of the software to the client to be executed by its processor and kept only in RAM.

Which of the following is a type of connector used with coaxial cable? A. RG-6 B. RG-59 C. BNC D. SC

C. Coaxial cable can use BNC connectors and F connectors. RG-6 and RG-59 are coaxial standards. SC is a fiber-optic connector.

A laptop user with an 802.11ac wireless network card just switched desk locations. In the new location, she says that her wireless drops connectivity intermittently and seems to have slow transfer speeds. Which of the following is most likely to resolve these issues? A. Replace the network card. B. Run ipconfig to ensure that she is receiving the right IP address from the DHCP server. C. Install a new WAP closer to her new desk. D. Use a network monitor to ensure that there are no IP address conflicts.

C. Distance matters in wireless networks. Being too far away from an access point will result in a weaker signal, which can cause intermittent signal drops and poor performance. Moving closer to the wireless access point (WAP) or wireless router can help, as can installing additional WAPs or wireless routers. The IP address from the DHCP server won't matter, and since she reported no error message, there is not likely to be an IP address conflict. Unless there are other issues, replacing the NIC seems to be overkill.

A mobile device is having intermittent communications issues. Which software component of a mobile phone is most likely responsible for these issues? A. Either iOS or Android OS B. SIM OS C. Baseband OS D. Wireless OS

C. Each mobile phone has a separate processor that manages wireless communications, also known as radio communications or baseband communications. There is a baseband OS that manages this, and it works with the primary OS on the phone. A SIM OS is for managing data transfers between the phone and the SIM chip. There is no wireless OS.

You are installing a network at a friend's house, and it's impossible to run a network cable from one point in the house to another. He does not want to use wireless networking. Which of the following is the best option to get network connectivity between the two points? A. Power over Ethernet injector B. Power over Ethernet switch C. Ethernet over Power D. Bridge

C. Ethernet over Power can transmit network signals over power lines within a closed circuit, such as a house. It's the best choice. PoE devices provide power to devices that only have an Ethernet connection available. A bridge is for connecting disparate network segments and dividing collision domains.

Of all the network cabling options, offers the longest possible segment length. A. Unshielded twisted-pair B. Coaxial C. Fiber-optic D. Shielded twisted-pair

C. Fiber-optic cable can span distances of several kilometers because it has much lower attenuation, crosstalk, and interference as compared to copper cables.

The type of display that Google Glass presents to its users is called what? A. Retinal projection B. VR C. AR D. OCR

C. Google Glass uses augmented reality (AR) technology, which is common on heads-up types of displays. Virtual reality (VR) is provided by devices such as Oculus Rift. There is no retinal projection display used with mobile devices. OCR stands for optical character recognition, which is not a technology covered in this chapter or on the A+ exam. (It's used to translate documents after they've been scanned in on a scanner.)

You have been asked to set up a workstation for a new graphic designer at your company. Which of the following is not a requirement for a graphic design workstation? A. Fast hard drive B. Maximum RAM C. Powerful CPU D. High-end video

C. Graphic design and CAD/CAM design workstations do not require a powerful CPU. They can use a fast hard drive because the artist works with large images that can take a long time to load or save. Maximum RAM is needed to hold the highly detailed, sometimes 3D, artwork before saving. High-end video is necessary for assisting in the rendering and display of the images.

A customer wants to connect a laptop to a mobile devices Internet for use in situations where there is no Internet connectivity. Which of the following technologies would the technician recommend to the customer? A. IR B. NFC C. Hotspot D. Lightning

C. Hotspot

You have just installed a new printer, but it prints only garbled text. Which of the following is likely the problem? A. Wrong IP address B. Worn print head C. Incorrect printer drivers D. Unsupported printer

C. If a printer is using out-of-date or incorrect printer drivers, the printer may produce pages of garbled text. The solution is to ensure that the most recent printer drivers are downloaded from the manufacturer's website.

Which component if damaged can render the hard drive useless? A. The caddy B. The rails C. The signal pins D. The chassis

C. If required, remove the connector attached to the old drive's signal pins and attach it to the new drive. Make sure it's right side up and do not force it. Damaging the signal pins may render the drive useless. The caddy, rails, and chassis are not easily damaged.

Which of the following should be set to the IP address of the router interface connecting to the local network? A. IP address B. Subnet mask C. Default gateway D. DHCP server

C. If the computer cannot connect to the default gateway, it will be confined to communicating with devices on the local network. This IP address should be that of the router interface connecting to the local network.

A technician connects a second monitor to a desktop. It is physically located to the right of the existing monitor, but the mouse pointer can only get to the second monitor by moving to the left edge of the screen of the first monitor. Which of following display settings needs to be adjusted to get the pointer to move with the physical placement of the monitor? A. Scaling B. Rotation C. Position D. Resolution

C. Position

Which of the following is a standard managed by the ISO and uses tags that are embedded in the devices? A. KVM B. Lumens C. NFC D. CHS

C. NFC components include an initiator and a target; the initiator actively generates an RF field that can power a passive target. This enables NFC targets to take simple form factors such as tags, stickers, key fobs, or cards that do not require batteries. When discussing bulbs for projectors, brightness is a description of light output, which is measured in lumens (not watts). Ensure that you are purchasing the correct bulb for the projector and maximize the life of the bulb by turning the projector off when not in use. A keyboard, video, and mouse (KVM) device allows you to plug multiple PCs (usually servers) into the device and to switch easily back and forth from system to system using the same mouse, monitor, and keyboard. CHS is a drive geometry concept.

You are configuring wireless communication for several smartphones. Which of the following wireless communication methods has the shortest operational range? A. Wi-Fi B. Bluetooth C. NFC D. IR

C. Near field communication (NFC) has a maximum range of about 10 centimeters. Wi-Fi depends on the standard, but it usually has a range of 30 meters or more. Bluetooth Class 2 devices can operate at about 10 meters, and infrared (IR) has a maximum range of about 1 meter.

You have recently installed a NAS in your home so that all your family members could share media. You have a router and network cabling that supports Gigabit Ethernet. Why should you equip a NAS with a Gigabit NIC? A. All systems, including the NAS, should communicate at the same speed. B. The NAS should not be allowed to communicate at the higher speeds of the rest of the network or it will be overused. C. The NAS should exceed the communication speed of the clients to avoid a bottleneck. D. The operating system that a NAS runs is not compatible with Gigabit Ethernet.

C. Optimally, the NAS should communicate across a link that is the aggregate of all client links, but at the very least, the NAS's link should be a faster one to alleviate the potential bottleneck when all clients try to access the server simultaneously.

Which of the following types of expansion slots is MOST frequently found in blade servers? A. PCIe B. PCI C. PCI-X D. miniPCI

C. PCI-X PCI-X, short for Peripheral Component Interconnect eXtended, is a computer bus and expansion card standard that enhances the 32-bit PCI local bus for higher bandwidth demanded mostly by servers and workstations. A blade server is a stripped-down server computer with a modular design optimized to minimize the use of physical space and energy.

Which type of expansion slot provides the fastest data transfer speeds? A. PCI B. PCIe x1 C. PCIe x16 D. PCIe x64

C. PCIe x16 Peripheral Component Interconnect Express C. PCIe is the fastest expansion slot standard on the market today. PCI is much older and slower. Of the PCIe slots, PCIe x16 is the fastest. There is no PCIe x64 (not yet anyway).

You have just purchased a motherboard that has an LGA 1156 socket for an Intel Pentium processor. What type of memory modules will you most likely need for this motherboard? A. DIP B. SIMM C. DIMM D. SODIMM

C. Pentium processors in a desktop always use DIMMs. DIPs and SIMMs are earlier forms of memory that have been obsolete for many years. SODIMMs are used in laptops.

Which of the following involves the vendor providing the hardware platform or data center and the software running on the platform? A. IaaS B. SaaS C. PaaS D. DaaS

C. Platform as a service (PaaS) involves the vendor providing the hardware platform or data center and the software running on the platform. This includes the operating systems and infrastructure software. The company is still involved in managing the system. Software as a service (SaaS) involves the vendor providing the entire solution. This includes the operating system, the infrastructure software, and the application. Infrastructure as a service ( IaaS) provides only the hardware platform to the customer. Security Information and Event Management (SIEM) is a system that aggregates all log files and analyzes them in real time for attacks.

There has recently been a string of hardware thefts in your office building. What should you recommend that your users implement to help avoid this problem? A. Enable GPS tracking. B. Use a docking station. C. Use a cable lock. D. Use the screensaver lock.

C. Sometimes the only way to ensure that equipment doesn't walk away is to lock it down physically. Laptops come equipped with holes for cable locks that can be used to secure them to a desk or other workstation. GPS tracking might help after the device is stolen, but it's best to prevent that in the first place. A docking station does not prevent physical theft, nor does a screensaver with a password.

How do you connect a DVI-A interface on a peripheral to a DVI-D interface on the computer? A. With a DVI-I cable B. With a cable that is terminated on one end with a DVI-A connector and on the other end with a DVD-D connector C. You wouldn't interconnect those two interfaces. D. With a standard DVI cable

C. Such a connection should not be made. DVI-I cables act like universal cables; they can connect two DVI-A interfaces or two DVI-D interfaces with adapters. Natively, they are used to connect two DVI-I interfaces, both of which are configured as either analog or digital. They are unable to convert the analog signal to a digital one, however. Analog and digital DVI interfaces are too disparate to interconnect.

One of your friends asks you if you have any SuperSpeed devices. What type of device is she talking about? A. SSD B. CRT C. USB D. eSATA

C. SuperSpeed is a trade name for USB 3.x, so your friend is talking about USB devices. SSDs are solid-state hard drives, and CRTs are monitors. eSATA is an external standard used mostly for hard drives.

What size hard drive goes in a laptop? A. 1.5 inch B. 2.0 inch C. 2.5 inch D. 3.5 inch

C. The 2.5-inch hard drives are smaller (which makes them attractive for a laptop where space is at a minimum); however, in comparison to 3.5-inch hard drives, they have less capacity and cache, and they operate at a lower speed.

You are replacing a motherboard in a computer that uses an AMD Ryzen 3 processor. Which CPU socket type do you need to ensure that the motherboard has? A. AM2 B. AM3 C. AM4 D. LGA 1151

C. The AMD Ryzen 3, Ryzen 5, and Ryzen 7 CPUs use Socket AM4. AM2 and AM3 are used for older processors, such as the Phenom II, Athlon II, Sempron, and Opteron. Any socket that starts with LGA in its socket name is for Intel processors.

Which of the following protocols is responsible for resolving IP addresses to hardware addresses? A. DNS B. DHCP C. ARP D. RARP

C. The Address Resolution Protocol (ARP) resolves IP addresses to hardware (MAC) addresses. RARP does the reverse—it resolves MAC addresses to IP addresses. DNS resolves hostnames to IP addresses. DHCP automatically configures TCP/IP clients.

Which of the following is a Class B address? A. 192.168.5.5 B. 10.6.6.3 C. 172.6.8.9 D. 201.69.3.2

C. The Class B range is 128-191. The class A range is 1-126. The Class C range is 192-223.

A motherboard failed on a desktop PC with an Intel Core i7-8700K processor. When looking for a replacement motherboard, which CPU socket does it need to have? A. LGA 1366 B. LGA 1150 C. LGA 1151 D. LGA 2066

C. The Core i7-8700K is a Coffee Lake-series processor, which uses the LGA 1151 socket. LGA 1150 sockets are for older i7s, and the LGA 1366 socket is for even older ones than that. The LGA 2066 socket is for processors with a capital X at the end of their model number.

You are installing a new video card into a PCIe slot. What is the combined total throughput of a PCIe 2.0 x16 slot? A. 500 MBps B. 1 GBps C. 16 GBps D. 32 GBps

C. The PCIe 1.1 specification provided 250 MBps of throughput per lane per direction. With the 2.x versions of PCIe, this rate was doubled to 500 MBps. As a result, each v2.0 lane is capable of a combined 1GBps. A x16 slot consists of 16 lanes, for a total bidirectional throughput of 16 GBps. PCIe 1 x 16 =8Gbs

Which standard has been commonly used in computer serial ports? A. RJ-11 B. RJ-45 C. RS-232 D. BNC

C. The RS-232 standard had been commonly used in computer serial ports. A serial cable (and port) uses only one wire to carry data in each direction; all the rest are wires for signaling and traffic control. An RJ-11 is a standard connector for a telephone line and is used to connect a computer modem to a phone line. It looks much like an RJ-45 but is noticeably smaller. The RJ-45 is used for networking.

The SATA power connector has how many pins? A. 8 B. 12 C. 15 D. 18

C. The SATA power connector consists of 15 pins, with 3 pins designated for 3.3V, 5V, and 12V and with each pin carrying 1.5 amps. This results in a total draw of 4.95 watts + 7.5 watts + 18 watts, or about 30 watts.

The amount of RAM that is required in a virtualization workstation depends on which of the following? A. Number of processors B. Number of drives C. Number of VMs D. Speed of NIC

C. The amount of RAM that is required depends on the number of VMs that you anticipate operating at the same time, not how many exist on the desktop. Total the memory requirements of each VM that will be open at the same time, in addition to the requirements of the host operating system. That should be the minimum. Then add more for overhead to ensure performance.

You connect two Bluetooth devices together that have been previously connected. What is the process called that each device uses to verify the other's identity? A. S/MIME B. Synchronization C. SSO D. Pairing

C. The devices verify each other's identity via mutual authentication for multiple services (SSO). Pairing is done for the initial connection. S/MIME is used to send and receive encrypted email. Synchronization is used between a mobile device and a desktop/laptop or the cloud.

You are configuring NFC for a smartphone user. He is concerned about the maximum data transfer rates of the technology. What is the fastest data transfer speeds currently supported by NFC? A. 106 Kbps B. 212 Kbps C. 424 Kbps D. 636 Kbps

C. The fastest NFC can transfer data is 424 Kbps. The three speeds supported by NFC are 106 Kbps, 212 Kbps, and 424 Kbps. NFC does not currently support 636 Kbps.

You are solving a problem with a desktop computer that was caused by human error. When is the appropriate time to implement preventive measures, according to the best practice methodology? A. When documenting findings, actions, and outcomes B. When testing the theory to determine cause C. When verifying full system functionality D. When questioning the user to identify user changes

C. The fifth step in the best practice methodology is to verify full system functionality and, if applicable, implement preventive measures. This step occurs after a plan of action to resolve the problem has been established and before findings, actions, and outcomes have been documented.

When a desktop computer boots up, there is no video on the LCD monitor, just a blank screen. The system makes one beep when it powers on, and air is coming out of the case fan. What is the most likely cause of the problem? A. The motherboard has failed. B. The video card has failed. C. The monitor is disconnected. D. The CPU or RAM has failed.

C. When troubleshooting, always question the obvious. In this case, the system beeps once, which is usually a signal from the BIOS that POST completed successfully, and air is coming from the system fan. All of that appears to be normal. Check to see that the monitor is connected properly to the desktop computer and that it's receiving power.

Which of the following types of cables are MOST likely to be used to connect to an external hard drive? (Select TWO). A. Molex B. SPDIF C. eSATA D. HDMI E. USB 3.0 F. CAT6e

C. eSATA E. USB 3.0

You connect a VOIP device on a user's desk and need to connect it to a PoE enabled switch located in a communications closet about 150 feet (approximately 50 meters) away. Which of the following cables should you select to connect the VOIP device to the switch? ​ Coaxial ​ CAT 3 ​ CAT 6 ​ Fiber

CAT 6 OBJ-2.2: VOIP (Voice over IP) devices that rely on PoE (Power over Ethernet) should use a CAT 5e or CAT 6 cable to make the connection. This allows a single cable (CAT 5e or CAT 6) to carry both the data and the device's power. Fiber, coaxial, and CAT 3 cables cannot carry power to the VOIP device and cannot be used to meet this requirement. Using a CAT 5e or CAT 6 cable, you can connect two devices of approximately 300 feet (100 meters) without any need to repeat the signal.

When troubleshooting a VoIP telephone connection, the line connected to the telephone is MOST likely which of the following cable types? ​ USB cable ​ CAT6 cable ​ CAT3 cable ​ Single-mode fiber ​ HDMI cable

CAT6 cable Correct Answer: VoIP phones use an IP ethernet network, such as the internet, to provide telephone service; so, it uses a network connection. CAT6 is the most common cable used in VoIP. Incorrect Answers: CAT 3 cable can support power over ethernet, however, it usually has difficulty providing the required bandwidth for VoIP USB cannot be used for VoIP; it is used for peripherals. Single-mode fiber is used in fiber optics. HDMI cables are used for video/audio connections.

You want to buy a new computer that will allow you to run at least 3 virtual machines (VMs) at the same time to practice for your CompTIA A+ exam. You also know in the future that you would like to set up a virtual ethical hacking lab with numerous VMs to study for the CompTIA PenTest+ exam. Which TWO of the following components is the MOST important to upgrade if you want to simultaneously run numerous VMs simultaneously? ​ NIC ​ SDD ​ GPU ​ CPU HDD ​ RAM

CPU RAM OBJ-3.8: If you want good performance for a computer used for extensive virtualization (such as multiple virtual machines running at once), you should maximize the CPU and the RAM. These are the most important components when building a virtualization machine to support numerous VMs.

A technician is connecting a PoE enabled phone and needs to run the drop from the switch that is 55 meters (180.4 feet) away. Which of the following cable types would be the MOST suitable for this purpose? A. Fiber B. Coaxial C. CAT3 D. CAT6

D

You have been asked to replace a cracked screen on a laptop. The replacement screen was delivered today, but it did not include any instructions for removal and replacement. You have been unable to find the repair information on the manufacturer's website. Which of the following is the BEST course of action for you to take when replacing the cracked screen? ​ Update the laptop's device driver before replacing the screen ​ Wait a few weeks until the manufacturer updates their website with the repair manuals ​ Carefully remove the laptop's cracked screen while documenting and labeling all of the screw locations and cables/connectors ​ Return the screen and order one from a different manufacturer

Carefully remove the laptop's cracked screen while documenting and labeling all of the screw locations and cables/connectors OBJ-5.5: Replacing a cracked laptop screen is a common task for an A+ technician. If you are not provided with the instructions for how to do it for a particular model, you can carefully disassemble the laptop and document/label all of the screw locations and cables/connectors. This will then allow you to replace the cracked screen and reconnect all the cables properly. You do not need to update the device drivers on the laptop unless there was some software display issue before the screen was cracked. When possible, you should use OEM parts when repairing or replacing components to ensure you don't void the laptop's warranty or cause other issues.

A user loans his laptop to a collegue for a presentation. When it was returned, the screen image is upside down for the user. Which of the following is the BEST solution for the technician to repair the problem? ​ Replace the video card ​ Change the screen orientation ​ Connect an external monitor ​ Update the video card drivers

Change the screen orientation ​ Correct Answer: Most systems have a simple keyboard shortcut or applet in the Control Panel to change the orientation. Incorrect Answers: The video card drivers are installed properly. An external monitor will not allow you to adjust the orientation; it will display the same. The video card is working properly

What is the function of the charging circuit on a laptop? ​ Charges the laser ​ Charges the battery Charges the AC inverter ​ Charges the CCFLs

Charges the battery Correct: The charging circuit charges the battery. Incorrect: Neither the AC inverter or the CCFL require any special charging circuit. Actually, the inverter charges the CCFL. There is no "laser" on a typical laptop.

Which of the following is the most important item Tim should check to make sure he buys an AC adapter that will work with his laptop at his home? ​ Make sure the household power plug on the AC adapter matches Tim's power outlets. ​ Check the physical size of the AC adapter. ​ Check the AC adapter's DC power connector to verify that it is the right size/shape for Tim's laptop. Check to see if the AC adapter is the same brand as Tim's laptop.

Check the AC adapter's DC power connector to verify that it is the right size/shape for Tim's laptop. Correct Answer: AC adapters come with a bewildering number of DC power connecters (the plug that goes into your laptop). Incorrect Answers: The other answers are less important than the DC power connector or not important at all.

Yesterday you were working on client's wireless laptop, patching the system through Windows Update. Today, the client reports that they can no longer access the internet. What is the FIRST thing you should check? ​ Ensure that the driver wasn't accidently updated through Windows Update Make sure they have properly connected their WiFi antenna ​ Check for a BIOS firmware update ​ Check the switch on the laptop to ensure that the WiFi radio is on.

Check the switch on the laptop to ensure that the WiFi radio is on. Correct Answer: On most modern laptops there is a little switch on the laptop that will enable or disable the WiFi radio on the device. This should be your first stop in troubleshooting WiFi problems. Incorrect Answers: The WiFi antenna on most, if not all laptops is built into the screen portion of the laptop. If this laptop were to have a PCMCIA wireless card, then maybe it would have an antenna. A BIOS firmware update while always handy for random hardware fixes, would probably be one of the last things I do, especially since their laptop worked fine yesterday. Having a drive updated through Windows Update is usually a great thing! You may get additional features or funtionality. However, there are those times where patching can produce negative results. I would definitely have this somewhere in my troubleshooting process, but not first.

You see streaks of toner across your papers when you print things using your office's laser printer. What is the MOST likely cause of this problem? ​ Replace the toner cartridge in the printer ​ Change the feed rate of the paper ​ Clean the printer's transfer roller ​ Increase the temperature of the fuser element

Clean the printer's transfer roller OBJ-5.6: The transfer roller is one of the most important components inside the printer, as it charges the toner in the drum before it transfers to the paper. If you see streaks of toner on your printouts, this is usually an indication of a dirty transfer roller. Consequently, occasionally cleaning the transfer roller can keep your printed documents clean and streak-free. You may print hundreds or even thousands of pages on your laser printer between toner cartridge changes, so it is prudent to clean the unit whenever you change the toner cartridge to keep used toner from building up and clogging the print mechanism.

Your office has a shared networked printer connected that is accessed via a print server. The printer has stopped printing. What is your FIRST step to try and get the printer to start printing again? ​ Restart the user's workstation ​ Update the printer drivers on the user's workstation ​ Replace the USB cable on the printer ​ Clear the print queue on the print server

Clear the print queue on the print server OBJ-5.6: Often, a network printer connected to a print server will stop printing if the print queue becomes too full or a single print job in the queue has failed. A good first step in troubleshooting these kinds of issues is to clear the current jobs in the print queue and then try reprinting again. Since the printer is accessed via a print server, it is unlikely that restarting the user's workstation or updating the print drivers on their workstation will fix the printing issue. Also, a network printer usually uses a CAT 5e network cable, not a USB cable, for connection to the network.

You have just set up a Minecraft server on a spare computer within your network and want your friends to connect to it over the internet. What do you need to configure in your SOHO router to allow your friends to connect to the new Minecraft server you created? ​ Enable DHCP ​ Update the firmware ​ Configure port forwarding ​ Configure your Wi-Fi to use Channel 11

Configure port forwarding OBJ-2.3: Port forwarding maps one port to another. If you want an external user to access an internal computer or server, you will need to setup port forwarding on your SOHO router to allow your external users to access the server within the internal (private) LAN.

You have just connected an external monitor to a laptop for one of your customers. You now need to configure the laptop to mirror the internal laptop display to this monitor. Which of the following should you do next? ​ Turn the monitor off and on again ​ Enable the DisplayPort ​ Configure the display settings in the operating system ​ Restart the laptop

Configure the display settings in the operating system OBJ-1.3: Once the external display/monitor has been connected, you need to configure the display settings from within your operating systems. The other options provided will not cause the displays to be mirrored as per the customer's request.

Josie from Human Resources was just issued a new laptop from the company. When she plugs the laptop into the network's wall jack and turns it on, she receives an error message. She calls the service desk to report that the error message being displayed states, "There is an IP address conflict with another system on the network." You are working as a field service technician and have been asked to resolve this error. What should you do? ​ Configure the laptop's network connection to use DHCP instead of a static IP ​ Choose a new IP address and statically assign it to the laptop ​ Disable the wired network adapter and require the laptop to use the wireless network adapter instead ​ Replace the wired network adapter on the laptop since it is faulty

Configure the laptop's network connection to use DHCP instead of a static IP OBJ-5.7: This is a common error when two network devices are assigned the same IP address on a network. This occurs most commonly when static IP addresses are used, so the easiest way to avoid this issue is to use DHCP to assign the IP addresses on the network. Forcing the user to use wireless over wired may solve the issue temporarily, but this is more of a workaround than a true solution to the error. It would be best if you didn't randomly choose a new IP and statically assign it to the laptop since this will lead to more future conflicts. You shouldn't remove the desktop computer's static IP configuration if the error you received is on the laptop.

Tamera just purchased a Wi-Fi-enabled Nest Thermostat for her home. She has hired you to install it, but she is worried about a hacker breaking into the thermostat since it is an IoT device. Which of the following is the BEST thing to do to mitigate Tamera's security concerns? (Select TWO) ​ Configure the thermostat to use a segregated part of the network by installing it into a DMZ ​ If the device's website supports two-factor authentication (if supported by the company) ​ Configure the thermostat to use the WEP encryption standard for additional confidentiality ​ Configure the thermostat to connect to the wireless network using WPA2 encryption and a long, strong ​ Upgrade the firmware of the wireless access point to the latest version to improve the security of the network ​ Disable wireless connectivity to the thermostat to ensure a hacker cannot access it

Configure the thermostat to use a segregated part of the network by installing it into a DMZ Configure the thermostat to connect to the wireless network using WPA2 encryption and a long, strong OBJ-2.3: The BEST options are to configure the thermostat to use the WPA2 encryption standard (if supported) and place any Internet of Things (IoT) devices into a DMZ to segregate them from the production network. While enabling two-factor authentication on the device's website is a good practice, it will not increase the IoT device's security. While disabling the wireless connectivity to the thermostat will ensure it cannot be hacked, it also will make the device ineffective for the customer's normal operational needs. WEP is considered a weak encryption scheme, so you should use WPA2 over WEP whenever possible. Finally, upgrading the wireless access point's firmware is good for security, but it isn't specific to the IoT device's security. Therefore, it is not one of the two BEST options.

A technician is installing a network-enabled security system that features IP-based cameras. To access the system remotely, which of the following capabilities isMOST likely to require configuration? A. VPN passthrough B. QoS C. Static IPs D. Port forwarding

D

A mobile phone is responding slowly and erratically for a user. The user has tried a soft reset on the device, but the phone continues to respond slowly. Which of the following is the BEST step the user can take to fix this problem? ​ Change your power settings. ​ Reset to factory default. ​ Turn off your location services. ​ Close applications that are unused.

Correct Answer: Close the unused apps is the best answer. Many people do not realize that the amount of applications that are running in the background on your mobile device. If you have performance issues, try reviewing the applications that are running on your system, and close applications that are not being used. Incorrect Answers: Power settings will not assist, they are designed to help the battery life of a device. Resetting the tablet may fix the problem, however, you will lose all your data. This problem does not require drastic measures. Turning off location services will not assist. It may help your battery, but it would not affect your response time.

A customer needs to create a copy a database on media, however the file is 89GB. Which of the following format specifications can support the file size? ​ BD - R ​ BDXL ​ BD - RE ​ BD - RE DL

Correct Answer: Conventional Blu-ray technology has a capacity of 50GB. BDXL supports 100 GB and 128 GB disks through triple and quadruple layer disks. Incorrect Answers: BD-RE DL will not support the file size. BD-RE will not support the file size. BD-R will not support the file size.

Scott's excited that his new laptop has a Gigabit Ethernet (1000BaseT) capable NIC. However, when he plugs it into his network at the office, he only gets 100Mbit speeds. What's the problem? ​ He needs to set the NIC's speed settings to "AUTO." ​ He needs to update the NIC's drivers. ​ His switch only supports 100BaseT. The other computers on the network only support 100BaseT.

Correct Answer: His switch only supports 100BaseT. When two Ethernet devices connect, they negotiate in order to set themselves to the highest possible speed. In this case, the switch is 100BaseT. Incorrect Answers: The drivers are fine. Your NIC's speed has nothing to do with the other computers. However, your actual data throughput will depend on the speed of the entire connection between the two communicating devices. Most NICs do have a property that defines the speed. In almost all cases this is set by default to "AUTO." There is a tiny chance that Scott's NIC is set to 100BaseT, but it's not nearly as common as the correct answer.

Two users would like to share pictures between their mobile devices. Both devices will be in close proximity and the users do not wish to use a third party service and/or another networking devices. Which of the following is the BEST option for this scenario? ​ IR ​ Wifi ​ NFC ​ USB

Correct Answer: Near field communication (NFC) protocols are designed for just such sharing. Used over wireless communication, it allows for data exchange for distances of 4 centimeters or less. Incorrect Answers: Infrared (IR) will require software. WiFi will require that they are connected to a common network. USB will require cabling.

Which of the following supports IP telephony devices without requiring external power? ​ VPN ​ WEP ​ QoS ​ PoE

Correct Answer: Power over Ethernet (or PoE) enables networking devices to get their power through an Ethernet cable rather than a power cord. Incorrect Answers: A VPN, or virtual private network, is used to enable remote connections to a local network. QoS, or quality of service, is a method for maintaining stable network performance by prioritizing some network packets over others. WEP is an encryption standard for wireless networks.

What is the maximum throughput of a SATA II drive? ​ 4 Gbps ​ 1.5 Gbps ​ 3 Gbps ​ 1 Gbps

Correct Answer: SATA II runs at 3 Gbps. Technically, the name of the technology is SATA Revision 2.x or SATA 3Gb/s, not SATA II. Incorrect Answers: First generation SATA runs at 1.5 Gb. The other two answers are made up.

A technician is called onsite to solve a network connection error. Upon arrival, the technician observes a message on the screen stating there is no boot drive found. Which of the following steps should the technician take next? ​ Inform the customer the hard drive has crashed and replace the drive ​ Restart the system, booting from a system recovery disc ​ Repair the boot sector using recovery console ​ Restart the system to verify the proper boot sequence

Correct Answer: The first thing to do after a boot error is to make sure the boot sequence is correct. Incorrect Answers: You can use the recovery console to repair the boot sector on a drive, but if the drive isn't showing up at all, the recovery console won't help much. A system recovery disc won't help a boot device show up. Don't just replace the drive straight away. There may still be hope!

There are only two issues that take place on a modern PC that generate beep codes. What are they? (Select two.) ​ BIOS needs updating ​ Bad or Missing RAM ​ Problem with CPU ​ No video card detected

Correct Answer: The only two common POST beep codes are: No video card detected and Bad or Missing RAM. Incorrect Answers: If the CPU is bad, then the POST can't start. There is no error code for an outdated BIOS.

Your new office networked printer is having trouble. You set the IP address to 192.168.4.3. It self-tests just fine and everything is properly configured, but no one can print to it. When you try to PING the printer, you don't get a response. All computers can access the server and the Internet—you even PING the router at 192.168.41.1 and it responds nicely. What should you now suspect? ​ The printer's NIC ​ The subnet mask for the entire network ​ The network switch ​ The printer's IP address

Correct Answer: The printer's IP address looks like it is not in the same network as the rest of the PCs—certainly worth checking next! Incorrect Answers: The network switch is not the problem if you can still access the server and Internet. The printer's NIC is probably not the issue if it can self-test okay. The network's subnet mask is not the issue if the server and Internet can be accessed.

In Sleep mode, the __________ remains powered; everything else shuts off. AƆHard drive BƆMonitor CƆMemory DƆCPU

CƆMemory C. Memory remains powered in Sleep mode; everything else turns off.

In what two ways are DDR3 DIMMs better than DDR2 DIMMs? (Choose two.) AƆLess expensive BƆMore reliable CƆUses less power DƆFaster

CƆUses less power DƆFaster C, D. DDR3 uses less power and is faster than DDR2. It is not more reliable or less expensive.

A client, Ann, is having issues with a PC shutting down. There are no error messages displayed before the system powers off. Ann reports that this started after she installed and began using CAD software. The hard drive, video card, and RAM all meet the software requirements and have passed diagnostics. Which of the following is MOST likely the issue? A. The video card has 3D acceleration disabled. B. The hard drive is IDE instead of SATA. C. The hard drive needs to be repartitioned. D. The PSU is underpowered for the system.

D

A company wants to use thin clients to run all the common business applications it uses. The users need to share files and have a common email domain.Which of the following cloud concepts should a technician recommend? A. PaaS B. IaaS C. MaaS D. Saas

D

A customer asks a technician for a device that has the capability to easily connect a laptop to an external monitor, keyboard, mouse, and charge the battery.Which of the following devices should the technician recommend to the customer? A. Lightning B. KVM switch C. USB 3.0 D. Docking station

D

A home user's PC has an over-clocked CPU with a relatively small heat sync, small fans on the 800W power supply, and a high-end video card. Which of the following is the recommended solution that will manage heat more effectively? A. Replace the CPU heat sync with a high RPM fan B. Purchase an energy efficient power supply C. Not over-clocking the CPU D. Liquid cooling system

D

A smartphone user experiences difficulty removing the back cover of the device. Once finally removed, the battery appears to have swollen. The battery is still functional, but requires more frequent charging than it used to. Which of the following should the user do NEXT? A. Remove the battery and let it cool for 24 hours B. Fully discharge and then fully recharge the battery C. Short the battery terminals with a paper clip D. Replace the battery with a new one

D

A technician replaces a failed hard drive with a brand new one. The technician boots from a PE CD and attempts to install a custom OS build deployed from the network. The hard drive is visible in the systems BIOS. However, once in the preinstallation environment, the drive is not recognized in the imaging process and the process fails. Which of the following is MOST likely the cause of failure? A. The boot CD has failed and needs to be replaced. B. The hard drive needs to have its configuration manually defined in the BIOS. C. The PC's power supply is not providing enough power to the new hard drive. D. The hard drive has not been partitioned correctly.

D

A technician wants to install a secondary IDE drive which will be configured for additional user storage on the same IDE channel of the drive with the operating system. Which of the following jumper configurations should the technician use for the additional drive, if the drive with the operating system is set to MA? A. Place a jumper on both the MA and CS jumper block of the secondary drive. B. Place a jumper on the MA jumper block of the secondary drive. C. Place a jumper on both the SL and CS jumper block of the secondary drive. D. Place a jumper on the SL jumper block of the secondary drive.

D

A user reports an inkjet printer is constantly feeding two sheets of paper for every page printed. Which of the following is the MOST likely reason? A. Poor paper quality B. Incorrect paper size C. Defective duplexer D. Worn feed rollers

D

A user reports that the mouse is not working properly. The technician notices on the users workstation that the mouse cursor spins for several minutes before the technician can use the mouse. Which of the following is the cause of the issue? A. Failed Operating System B. Faulty mouse C. Faulty CPU D. Not enough memory

D

An IT manager needs to install a large display in a front office area with a lot of natural light. Which of the following display technologies will BEST satisfy the requirements of the design plan? A. CRT B. CCFL LCD C. IPS LCD D. LED LCD

D

Ann, a user, reports her docked mobile workstation will periodically lose her network share drive and lose video to the second monitor. Which of the following isMOST likely the cause of this anomaly? A. The workstation battery needs to be replaced. B. The NIC is functioning intermittently. C. Failed driver updates for the workstation's devices. D. The surge protector lost AC power.

D

Joe would like an Internet connection that is always on, stable, and not influenced by atmospheric conditions. Which of the following Internet connection types would BEST meet Joe's requirements? A. Dial-up B. Mobile Hotspot C. Satellite D. Cable

D

Joe, a user, receives a wireless router from his ISP with a pre-set password and configuration. He can connect to the router fine via Ethernet but cannot see the wireless signal on any of his devices. The LEDs on the router indicate that a wireless signal is broadcasting. Which of the following settings on the router does Joe need to adjust to enable the devices to see the wireless signal? A. DHCP B. IPv6 C. DMZ D. SSID

D

Most notebook PCs have their WiFi antenna located in the: A. LCD. B. WiFi card. C. I/O area. D. top cover.

D

Multicast addresses fall in which of the following classful address ranges? A. Class A B. Class B C. Class C D. Class D E. Class E

D

Older video cards used S-video to output to a TV. This standard has been replaced by: A. FireWire. B. SCSI. C. coaxial. D. HDMI.

D

On an ATX motherboard, the 4-pin auxiliary power connector provides which of the following? A. Additional power to onboard devices B. Additional power to PCIx peripheral cards C. Additional power to the South Bridge D. Additional power to the CPU voltage regulator

D

Which of the following Internet connection types is a digital form that runs over standard telephone wiring? A. Fiber B. Dial-up C. Cable D. DSL

D

Which of the following are factors when designing a home theater PC? A. Wireless NIC B. Audio frequency C. Video refresh rate D. Video output

D

Which of the following expansion ports would be used to enable transfer of power, data, and video to peripheral devices on an Apple computer? A. HDMI Video B. Lightning C. USB 2.0 D. Thunderbolt

D

Which of the following operating system types will allow a user to utilize 16GB of RAM if installed on a PC workstation? A. 8-bit B. 16-bit C. 32-bit D. 64-bit

D

Which of the following processing types allows two instructions to be received and processed nanoseconds apart? A. Quad core B. Triple core C. Dual core D. Hyper-threading

D

Which of the following should a technician do NEXT after reporting an incident? A. Delete the content B. Confiscate the PC C. Go back to work D. Document the incident

D

Which of the following devices uses MAC tables to allow multiple computers to access a single network connection? A. Hub B. Firewall C. VoIP D. Switch

D A MAC address table, sometimes called a Content Addressable Memory (CAM) table, is used on Ethernet switches to determine where to forward traffic on a LAN. ... It would encapsulate an Ethernet frame and send it off toward the switch

The Chief Executive Officer (CEO) of a company has requested outside access to a server within the company network so that sensitive documents can be worked on from home. Which of the following is the MOST appropriate tool to give the CEO the requested access? A. VNC B. Port forwarding C. Port triggering D. VPN

D In computing, Virtual Network Computing (VNC) is a graphical desktop-sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer.

Which of the following features is an advantage of a switch over a hub? A. A switch routes packets instead of frames to different networks. B. A switch divides bandwidth among connected devices. C. A switch broadcasts the data frames to every connected device. D. A switch sends data frames to the correct connected device.

D A hub broadcasts the data frames to every connected device

Which of the following MUST be configured when trying to start a machine with a DVD? A. TPM B. Virtualization support C. BIOS security D. Boot order

D Boot order should be changed and also secure boot should be disabled in order to allow the boot from the optical drive

Ann, a user, boots her laptop and notices the screen flashes then turns black. It was working during her presentation yesterday. Which of the following troubleshooting steps should be completed? A. Use a multimeter to test voltage. B. Replace the laptop with a new one. C. Replace the battery. D. Connect an external display device.

D Connect the external device to validate the problem is in the screen is a hardware failure

Which of the following would MOST likely be found on a docking station versus a port replicator? A. USB Hub B. VGA Port C. PS/2 Slot D. DVD-ROM

D Docking stations have DVD ROM whereas Port replicator has only ports.

A technician replaces a defective 250GB hard drive in a desktop with a 2TB hard drive. After installation, the computer detects the new 2TB drive as a 250GB drive. Which of the following should the technician do to fix this issue? A. Reinstall the drive B. Patch the OS C. Upgrade the driver D. Flash the BIOS

D Flash BIOS is a term used to describe the process of updating a computer's motherboard. Hard drives already come with preinstalled drivers to be automatically recognized by the system

Which of the following is an IP address that is assigned to a network device based on its MAC address? A. Dynamic B. Static C. Link local D. Reservation

D Recommended on a corporate network

When installing multiple SCSI drives in a system, which of the following is correct? A. All drives must have the same SCSI ID. B. Drives will be automatically assigned an ID by the controller. C. Drives in the same RAID array must have the same SCSI ID. D. Each drive must have a different SCSI ID.

D The drives will have a number from 1 to 15

You are installing a new hard drive and want to know if the operating system will be able to support it. What is the largest NTFS volume size supported, assuming a 64 KB cluster size as maximum? A. 1 TB B. 2 TB C. 128 TB D. 256 TB

D. A fixed number of clusters is supported by each operating system, leading to a corresponding maximum volume size. If the maximum NTFS cluster size of 64 KB is used, NTFS can support a single-volume size of 64 KB less than 256 TB. When a cluster size of one sector, or 512 bytes (1/2 KB), is used, the maximum volume size reduces to 2 TB. Because of this math, 1 TB and 128 TB are incorrect answers.

A physical star topology consists of several workstations that branch off a central device called a . A. NIC B. Bridge C. Router D. Hub

D. A hub or a switch is at the center of a star topology. A NIC is a network card, which each computer must have to be on the network. Bridges and routers are higher-level connectivity devices that connect network segments or separate networks together.

Your company wants to move to a cloud provider to be able to scale resources quickly, but it is concerned about the security of confidential information. Which of the following types of cloud models might be the most appropriate for your company? A. Public B. Private C. Community D. Hybrid

D. A hybrid cloud provides the best of public and private clouds. You get the scalability and cost effectiveness of a public cloud but the security that you need for important files on the private portion of the cloud.

Which of the following networking hardware devices is capable of creating VLANs? A. Firewall B. Repeater C. Unmanaged switch D. Managed switch

D. A managed switch can create virtual LANs (VLANs) using its management software. A firewall is a hardware or software solution that serves as your network's security guard. Repeaters and unmanaged switches cannot create VLANs.

Which IP setting is optional for network connectivity on a thin client? A. IP address B. Subnet mask C. Default gateway D. Proxy server

D. A proxy server address is optional.

Troubleshooting a network connectivity issue takes you into the wiring closet, where you realize that none of the cables are properly labeled. Several are disconnected. Which tool should you use to determine where the cables run to? A. Loopback plug B. Punch-down tool C. Cable tester D. Tone generator and probe

D. A tone generator and probe is used to trace a cable from one location to another. A loopback plug is for testing the ability of a network adapter to send and receive. Punchdown tools are used to connect the wires of a cable to a wiring rack, such as a 110-block. Cable testers are for verifying that a cable works properly.

Which of the following makes it easier to find the beginning and end of a cable? A. Crimper B. Cable stripper C. Multimeter D. Tone generator

D. A toner probe has two parts: the tone generator (called the toner) and the tone locator (called the probe). The toner sends the tone, and at the other end of the cable, the probe receives the toner's signal. This tool makes it easier to find the beginning and end of a cable. Wire crimpers look like pliers but are used to attach media connectors to the ends of cables. A cable stripper is used to remove the outer covering of the cable to get to the wire pairs within. A multimeter combines a number of tools into one. There can be slight variations, but a multimeter always includes a voltmeter, an ohmmeter, and an ammeter (and is sometimes called VOM as an acronym).

Which of the following is the name of a secure point-to-point connection made over a public network? A. NAT B. APIPA C. VLAN D. VPN

D. A virtual private network (VPN) is a secure point-to-point connection made over a public network. NAT translates private IP address to public IP addresses. APIPA is an automatic IP address assignment if a client computer can't reach a DHCP server. VLANs are virtual local area networks configured through switches.

You are installing a replacement monitor on a desktop computer. Which of the following is true regarding a monitor's refresh rate? A. As long as the graphics adapter can refresh the image at a particular rate, the attached monitor can accommodate that refresh rate. B. The refresh rate is normally expressed in MHz. C. The refresh rate is normally selected by using the controls on the front panel of the monitor. D. As you lower the resolution, the maximum refresh rate allowed tends to increase.

D. As you lower the resolution, the maximum refresh rate allowed tends to increase. The refresh rate is most often expressed in cycles per second (Hz), not millions of cycles per second (MHz). You must usually select the refresh rate that you want from the display settings dialogs, not through the monitor's built-in menu system, although the monitor can often tell you the refresh rate that you're using. Finally, both the monitor and adapter must agree on the refresh rate you select. If either device does not support a particular refresh rate, such a rate cannot be used.

Which of the following broadband technologies provides two dedicated, digital data channels that can be combined for greater throughput? A. DSL B. Cable C. Satellite D. BRI ISDN E. PRI ISDN

D. Basic rate interface ISDN (BRI ISDN) provides two separate 64 Kbps B channels for data transmissions. These channels can be combined to increase throughput. A PRI ISDN uses 23 B channels. DSL, cable, and satellite do not offer multiple dedicated digital channels.

Which connectors are sometimes used in the place of RCA connectors for video electronics? A. RJ-11 B. RJ-45 C. RS-232 D. BNC

D. Bayonet Neill-Concelman (BNC) connectors are sometimes used in the place of RCA connectors for video electronics, so you may encounter these connectors, especially when video equipment connects to a PC. In many cases, you may be required to purchase an adapter to convert this to another form of connection because it is rare to find one on the PC. An RJ-11 is a standard connector for a telephone line and is used to connect a computer modem to a phone line. It looks much like an RJ-45 but is noticeably smaller. The RJ45 is used for networking. RS-232 is a serial connector.

You have been asked to set up client-side virtualization on an office computer. The host OS is Windows 7, and there will be three Windows 7 guest OSs. Which of the following is true about the need for antivirus security? A. The host OS needs an antivirus program, but virtual machines can't be affected by viruses. B. The host OS antivirus software will also protect the guest OSs on the VMs. C. Installing antivirus software on the virtual switch will protect all guest OSs. D. The host OS and each guest OS need their own antivirus software installed.

D. Each instance of the OS you are running requires its own security software.

Which of the following protocols is used for secure delivery of email? A. SMTP B. SNMP C. POP3 D. IMAP4

D. IMAP4 - port 143 - and POP3 - 110- are the two protocols that are used for email delivery. Of the two, only IMAP4 provides security features. SMTP - port 25 - sends email. SNMP - 161/162 is a network management protocol.

Which display is a newer technology that solves the issue of poor quality at angles other than straight on? A. Passive matrix B. Active matrix C. Twisted nematic D. In-plane switching

D. In-Plane Switching (IPS) is a newer technology that solves the issue of poor quality at angles other than straight on. A passive matrix screen uses a row of transistors across the top of the screen and a column of them down the side. It sends pulses to each pixel at the intersection of each row and column combination, telling it what to display. An active matrix screen uses a separate transistor for each individual pixel in the display, resulting in higher refresh rates and brighter display quality. Twisted nematic (TN) is the older of the two major technologies for flat-panel displays. While it provides the shortest response time, has high brightness, and draws less power than competing technologies, it suffers from poor quality when viewed from wide angles.

Why might you use a KVM switch? A. You have multiple Ethernet devices that need to communicate with one another. B. You need to be able to switch the voltage supplied to a particular device. C. You have a printer that is not attached to the network but you want multiple computers to be able to print to it. D. You have more than one server and don't want to buy certain external peripherals separately for each.

D. KVM switches are ideal when you have multiple computers situated near one another and do not want to commit the extra desk space to each computer having its own keyboard, mouse, and monitor. KVMs are not designed for Ethernet devices or printers, and do not switch voltage

You are giving a seminar to new technicians on replacing laptop hard drives. A student asks how do laptop hard drives differ from desktop hard drives. What do you tell them? A. Laptop hard drives use completely different standards from those used by desktop hard drives for communication with the host. B. Laptop hard drives are solid-state, whereas desktop hard drives have spinning platters. C. Laptop hard drives require a separate power connection, whereas desktop hard drives are powered through the drive interface. D. The most common form factors for laptop hard drives is smaller than that of a desktop hard drive.

D. Laptop hard drives commonly have a 2.5″ form factor, and smaller drives, such as M.2, are becoming more popular. The most common form factor for desktop hard drives is 3.5″. Laptop hard drives use the same drive technologies as their desktop counterparts, such as serial and parallel ATA. As with desktop hard drives, laptop hard drives are available in both solid-state and conventional varieties. Unlike desktop hard drives, laptop hard drives do not have separate power connectors.

A client has a laptop with which you are unfamiliar. You are asked to perform a memory upgrade. How can you obtain the service manual for this laptop computer? A. By pressing F1 while in Windows B. By pressing F2 while the system is booting up C. By reading the paper copy that comes with the laptop D. By searching the manufacturer's website

D. Laptop service manuals can be obtained from the manufacturer's website. It's very rare that paper service manuals are shipped with the laptop. Pressing F1 while in Windows will open Windows Help, and pressing F2 on many laptops during the system boot will take you into the BIOS.

When enabled, which feature of a wireless router allows only specified computers to access the network? A. Port forwarding B. WPS C. SSID D. MAC filtering

D. MAC filtering is a security option that can specify that only computers with specific MAC (hardware) addresses can access the network. Port forwarding is a feature of firewalls. WPS is an easy setup mechanism for wireless networks. SSID is the wireless network name.

An engineer on your network is complaining that his CAD workstation is slow and he wants a GPU upgrade. Which of the following reasons is justification for having a powerful video card in a CAD/CAM workstation? A. Only powerful GPUs can stream graphical information efficiently. B. Manufacturing equipment is generally faster than design equipment, which needs faster GPUs to keep up. C. On a CAD system, the CPU defers to the GPU for all system processing requirements. D. The algorithms used in rendering graphics can be GPU-intensive.

D. Quite simply, the rendering of 2D and 3D graphics makes use of complex algorithms that need all of the GPU power they can get to remain usable. CAD workstations deal with static images, not streaming video. Manufacturing equipment is generally slower than computers used for the design phase. The CPU still does its job, but CAD workstations call for high-end video, which includes graphics adapters with GPUs often more powerful than the system's CPU.

You have been asked to configure a RAID 5 system for a client. Which of the following statements about RAID 5 is true? A. It provides fault tolerance but no performance improvement. B. It provides performance improvement but no fault tolerance. C. If multiple drives in the array fail, the data can be saved provided that one drive is still operational. D. It requires at least three drives to implement.

D. RAID 5 arrays require a minimum of three hard drives to implement. If one drive fails, the data is fine and the system can still function, albeit slowly. If more than one drive fails, the system will be inoperable. RAID 5 provides both fault tolerance and a performance improvement.

What port does the RDP protocol work on? A. 53 B. 143 C. 389 D. 3389

D. Remote Desktop Protocol (RDP) works on port 3389. DNS works on port 53; IMAP4 works on port 143; and LDAP works on port 389.

You are configuring two email servers on your company's network. Which network protocol do the servers use to transfer mail to each other? A. POP3 B. IMAP4 C. SNMP D. SMTP

D. Simple Mail Transfer Protocol (SMTP) is used to transfer email between servers. POP3 and IMAP4 are used to download email. SNMP is Simple Network Management Protocol and not related to email.

Which of the following processor types is most likely to be found in a smartphone? A. 32-bit B. GPU C. Intel D. ARM

D. Small devices, such as smartphones and tablets, are most likely using ARM processors. They could be 32-bit or 64-bit. A GPU is for video processing, and Intel does not currently produce ARM chips.

A user needs to synchronize her mobile device to another platform. She wants to be able to access the synchronized data from any location with just her phone. What should she synchronize to? A. Automobile B. Email C. Desktop D. Cloud

D. Synchronizing to the cloud allows the user to access the synched data from anywhere. Syncing to the automobile isn't generally used for data storage—in any case, the user would need to attach to the automobile to get to the data. There is no sync to email option. Syncing to a desktop can happen, but the data is not available unless the user's mobile device is connected to that desktop.

You are explaining various connection types to new corporate smartphone and tablet users. Which of the following best describes the concept of tethering? A. When a cellular device uses another device's Wi-Fi connection to get on the Internet B. When a Bluetooth device uses another device's Wi-Fi connection to get on the Internet C. When a Wi-Fi device uses another device's Bluetooth connection to get on the Internet D. When a Wi-Fi device uses another device's cellular connection to get on the Internet

D. Tethering is when a Wi-Fi enabled device attaches to a cellular device to get on the Internet. The cellular device is usually called a mobile hotspot.

Which record type on a DNS server represents an IPv6 host? A. A B. MX C. CNAME D. AAAA

D. The AAAA (quad A) record is used to represent IPv6 hosts. IPv4 hosts need an A record. The CNAME record is used if one host has alias (multiple) names. MX is for a mail server.

A client wants you to build a new PC for her, with a smaller case and lower power requirements. When selecting a motherboard, which form factor should you choose for a smaller size and lower power consumption? A. ATX B. AT C. Micro ATX D. ITX

D. The ITX motherboard family consists of smaller boards that fit in standard or miniature cases and use less power than their larger counterparts. ATX are "standard" sized motherboards in today's world. AT is a legacy form factor that was bigger than ATX. Micro ATX is smaller than ATX, but larger than ITX motherboards.

A network administrator is troubleshooting a notebook that is not loading the local Windows 10 operating system. All the computers inside the company are installed using UEFI mode selected. The message on the screen shows a failed attempt to connect to a PXE server. When requested, the end user reported trying to improve the computer's speed by changing some BIOS configurations randomly. Which of the following should the network administrator check FIRST insideBIOS? A. C-states should be configured to 2 B. Secure Boot should be enabled C. Wake-on-LAN should be unchecked D. The PXE server address should be set

D. The PXE server address should be set PXE - Preboot Execution Environment

The workstations on your network are configured to use a DHCP server. One of the workstations can't communicate with other computers. Its IP address is 169.254.1.18. What could be the problem? A. The subnet mask is wrong. B. It has a private IP address. C. The default gateway is wrong. D. It can't reach the DHCP server.

D. The address assigned to the computer is an APIPA address. Microsoft client computers (and others) will configure themselves with an address in this range if they are unable to reach a DHCP server.

What is the correct order of the steps in the EP imaging process? A. Developing, exposing, transferring, fusing, charging, cleaning, processing B. Charging, processing, exposing, developing, transferring, fusing, cleaning C. Processing, transferring, exposing, developing, charging, cleaning, fusing D. Processing, charging, exposing, developing, transferring, fusing, cleaning

D. The correct sequence in the EP imaging process is processing, charging, exposing, developing, transferring, fusing, and cleaning.

A user brings in an iPhone and the touch screen is not responding. What should you do to try first to get the device functioning again? A. Hold the power button and the sleep/wake button for 10 seconds to reset the device. B. Restore the device to factory settings. C. Replace the battery in the device. D. Hold the power button for 10 seconds to force the device to power off.

D. The first step should be to try to reboot the device. In most cases with a frozen smartphone, holding the power button down for about 10 seconds will force it to power off. If that doesn't work, then you can move to trying to reset the phone by holding down the power button and the sleep/wake button for 10 seconds. There is no need to restore the device to factory settings (yet) or replace the battery.

You are running an 802.11g wireless router in mixed mode. You have three 802.11g wireless NICs using the router. A new user connects using an 802.11b wireless NIC. What will happen? A. The user with 802.11b will access the network at 11 Mbps, while the users with 802.11g will access the network at 54 Mbps. B. The user with 802.11b will not be able to communicate on the network. C. The user with 802.11b will access the network at 11 Mbps. The users with 802.11g will access the network at 54 Mbps, unless they are communicating with the 802.11b device, which will be at 11 Mbps. D. All users will access the network at 11 Mbps.

D. The good news is that 802.11g is backward compatible with 802.11b. The bad news is, if you run in a mixed environment, all devices that communicate with the WAP (or router) will be forced to slow down to accommodate the older technology.

What is the maximum transmission speed of an ExpressCard in PCIe2 mode? A. 280 Mbps B. 512 Mbps C. 1.6 Gbps D. 3.2 Gbps

D. The maximum transmission speeds are as follows: 280 Mbps effective (USB 2 mode) 1.6 Gbps effective (PCIe 1 mode) 3.2 Gbps effective (PCIe 2 or USB 3 mode)

You want to enhance your display capabilities. Which of the following is possible to do with multi-monitor settings? A. Connect multiple monitors to your computer only by using a graphics adapter with two video interfaces. B. Cause two different Desktops to merge onto the same monitor. C. Connect two laptops together so they display the same Desktop. D. Display different parts of your Desktop on different monitors.

D. The multi-monitor feature allows two monitors to display exactly the same thing (clone) or to extend your Desktop onto the second monitor. There is no need to use one adapter to achieve this result. In fact, the two adapters don't even have to use the same expansion-bus architecture. The two cards must, however, use the same graphics-adapter driver. Multimonitor settings do not cause two Desktops to merge, nor do they allow two laptops to display the same Desktop.

Which of the following is not an advantage of a Universal Serial Bus (USB) printer interface? A. It has a higher transfer rate than a serial connection. B. It has a higher transfer rate than a parallel connection. C. It automatically recognizes new devices. D. It allows the printer to communicate with networks, servers, and workstations.

D. The rate of transfer and the ability to recognize new devices automatically are two of the major advantages that currently make USB the most popular type of printer interface. However, it is the network printer interface that allows the printer to communicate with networks, servers, and workstations.

Which of the following is the first step in the CompTIA troubleshooting method? A. Establish a plan of action to resolve the problem and implement the solution. B. Document findings, actions, and outcomes. C. Establish a theory of probable cause (question the obvious). D. Identify the problem.

D. The steps are as follows: 1. Identify the problem. 2. Establish a theory of probable cause (question the obvious). 3. Test the theory to determine cause. 4. Establish a plan of action to resolve the problem and implement the solution. 5. Verify full system functionality and, if applicable, implement preventive measures. 6. Document findings, actions, and outcomes.

Most printers that use the electrophotographic process contain how many standard assemblies? A. Five B. Six C. Four D. Nine

D. There are nine standard assemblies in an electrophotographic process printer. Early laser printers using the electrographic process contained the nine standard assemblies. Newer laser printers do not require an ozone filter and contain only eight standard assemblies.

Which of the following is a common feature of a standard thick client? A. Has enhanced video capabilities B. Has a high-performance hard drive C. Has as much RAM installed as possible D. Can run a full version of Windows

D. These standard systems do not have any special requirements, only that they can run Windows and desktop applications. Thick clients do not need enhanced video, hard drives, or RAM.

When a user turns on his desktop computer, nothing appears on the screen. He hears three long beeps, followed by three short beeps, and three long beeps. What should you do as a next step? A. Replace the motherboard. B. Replace the RAM. C. Replace the CPU. D. Look up the beep code on the manufacturer's website.

D. This system is producing a beep code and not completing the POST process. Different BIOS manufacturers use different beep codes. Look up this beep code on the manufacturer's website before replacing any hardware.

Which of the following laptop features turns off all wireless communications? A. Wireless function key B. Cellular function key C. Bluetooth function key D. Airplane mode function key

D. When enabled, Airplane mode turns off all wireless communications, including Wi-Fi, cellular, Bluetooth, and GPS. Wireless, cellular, and Bluetooth function keys will toggle on or off that particular communication method, but not all wireless communications.

A friend asks you why she would ever disable cellular data networking. Which of the following is not a valid reason to disable cellular data networking? A. You have a limited amount of data in your monthly plan. B. You have access to a reliable Wi-Fi signal. C. You are about to download an update to your phone. D. Your phone calls are going out over your carrier's cellular network.

D. Whenever you have a reliable Wi-Fi signal available, which you do not pay for "as you go," you should feel free to disable your cellular access to data networking. The wireless network is often faster and does not cost you anything to use. If data networking works better when you leave the cellular network available as a fallback, you can choose to disable it only for certain large downloads or disable it completely until the download is complete. Phone calls will continue to be sent over the cellular network. This does not imply that your data is not using an available Wi-Fi connection. Therefore, unless you are particularly sensitive to the situation or know that data is going out over your cell access, you might not need to disable the cellular data-networking feature.

A company is updating their office routers that handle all incoming and outgoing networking traffic. They would like the PCs to immediately connect to internet and network resources, without any additional configuration. Which protocol should the technician use to meet the requirements? ​ QoS ​ NAT ​ DHCP ​ Port forwarding

DHCP Correct Answer: Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway. Incorrect Answers: NAT is used to translate private LAN addresses into a shared public address. Port forwarding allows calls to a particular port of a public address to be directed to a specified internal IP address and port. QoS is used in a router to prioritize and optimize inbound and outbound traffic.

A technician is installing and configuring a SOHO wireless network for a client. The client only wants five authorized computers to connect to the network within a defined IP range. Which of the following should the technician configure on the router? (Select two.) ​ DHCP ​ SSID ​ MAC filtering ​ ARP ​ DMZ

DHCP MAC filtering DHCP is the technology in charge of handing out IP addresses dynamically, and you can configure it to stay within a certain range of IP addresses. Meanwhile, MAC filtering enables you to create a list of PCs allowed on the network based on their MAC addresses. Incorrect Answers: A demilitarized zone (or DMZ) is a security measure designed to protect internal systems from outside threats by exposing a part of the network to the outside. ARP, or address resolution protocol, resolves network layer addresses (for example, IP addresses) to link layer addresses (MAC addresses). SSID refers to the name of a wireless network.

You have connected your laptop to the network using a CAT 5e cable but received an IP address of 169.254.13.52 and cannot connect to www.DionTraining.com. What is most likely the cause of this issue? ​ DHCP failure ​ Failed DNS resolution ​ Poisoned ARP cache ​ Duplicate IP address

DHCP failure OBJ-5.7: A DHCP Server is a network server that automatically provides and assigns IP addresses, default gateways, and other network parameters to client devices. It relies on the standard protocol known as Dynamic Host Configuration Protocol or DHCP to respond to clients' broadcast queries. Since you have received an APIPA address (169.254.13.52), this signifies a DHCP failure.

The service desk has received numerous calls from different users stating they are receiving an error message concerning duplicate IP addresses being detected on their systems. These users also cannot access the network's file server or browse to any websites. Which of the following servers should the technician check first in troubleshooting this issue? ​ Proxy server ​ RADIUS server ​ DHCP server ​ DNS server

DHCP server OBJ-2.5: DHCP is the Dynamic Host Control Protocol. This is the protocol that is used to issue IP addresses to workstations dynamically from a DHCP server. If duplicate IP addresses are being detected on workstations across the network, it is either an issue with the DHCP server, or someone has been statically assigning IP addresses to workstations improperly.

You connected your laptop to a new wireless network and received an IP address automatically. Which of the following servers allowed this to occur? ​ DNS server ​ DHCP server ​ TACACS server ​ Proxy server

DHCP server ​ OBJ-2.5: A DHCP Server is a network server that automatically provides and assigns IP addresses, default gateways, and other network parameters to client devices. It relies on the standard protocol known as Dynamic Host Configuration Protocol or DHCP to respond to clients' broadcast queries. This allows devices to connect to new networks with minimal configuration or setup automatically.

Mike is setting up a new Internet connection. When he types PING 209.29.33.25, he is successful. When he types www.totalsem.com, he is not. Which TCP/IP setting should he check first? ​ Default Gateway ​ DNS ​ Subnet Mask ​ WINS

DNS ​ Correct Answer: He should check his DNS (Domain Name System) server address first. Incorrect Answers: The subnet mask isn't the problem if he is able to PING a server on the Internet. WINS is like DNS, but for working with NetBIOS names, not domain names like www.totalsem.com. The Default Gateway is working if he is able to PING a server on the Internet.

A technician is troubleshooting an issue with a workstation. The workstation can ping 8.8.8.8 successfully, but it is unable to access Facebook.com. Which internal network server is MOST likely causing these issues? ​ DHCP server ​ DNS server ​ SMTP server ​ FTP server

DNS server OBJ-2.5: DNS is the domain name service. A DNS server is used to perform name lookups and convert them to valid IP addresses. If a workstation can ping an IP, that indicates the network connection is working. If the workstation cannot access a website using its domain name (like diontraining.com or facebook.com), it indicates a problem might exist with the DNS server.

Which of the following optical media: a) is capable of multiple rewrites and b) has the largest capacity? ​ BD-R ​ DVD-RW ​ Blu-Ray ​ DVD DS (Double-Sided)

DVD-RW DVD-RW discs offer decent capacity (4.37 GB) and multiple rewrites. Incorrect Answer: BD-R discs have more capacity than DVD of any flavor, but do not support multiple rewrites. Blu-Ray refers to a movie disc, not a rewritable disc. A double-sided disc doesn't provide enough information to tell whether it's a writable or rewritable standard.

In a TCP/IP network, what device enables a computer to contact systems outside the local network? ​ Default gateway Hub ​ Switch ​ DNS

Default gateway Correct Answer: The default gateway enables systems on a LAN to contact systems outside the local network. Incorrect Answers: A Domain Name Server (DNS) translates names into IP addresses, and is used inside the LAN as well as outside. Hubs and switches are not default gateways.

Your building has a power failure while you're in the middle of printing several print jobs on a networked printer. When the power comes back on, you can't get anything to print from the printer. What should you do? ​ Try printing from a different PC on the same network. ​ Try the Print command several times in your software program. ​ Press the Reload button on the printer. ​ Delete all of the print jobs from the buffer and stop and restart the print spooler.

Delete all of the print jobs from the buffer and stop and restart the print spooler. Correct Answer: To clear the printer and begin printing again, you need to clear the buffer by deleting the existing print jobs, and then stop and restart the print spooler. Incorrect Answers: There is no such thing as a Reload button, and re-trying the Print command will only add to the buffer problem. In this case, the problem is with the printer, so trying another PC won't help.

What should you check first after a user reports a BSOD, even though her computer seems to be running fine after a reboot? ​ S.M.A.R.T errors ​ Disk Management ​ Device Manager ​ Event Viewer ​ Performance Monitor

Device Manager Correct Answer: Check Device Manager first. A driver error can cause a BSOD. Updating drivers is easy with this tool. Incorrect Answers: Event Viewer could also be helfpful, especially if you suspect a software issue. Performance Monitor gives an overrall sense of how well a computer is running. Disk Management is a tool for partitioning and formatting drives.If the customer had reported a S.M.A.R.T. error, this would tell you if a drive is dying.

Your daughter recently purchased a touchscreen laptop to use for her schoolwork. It has been working well for about 3 weeks, but today she is complaining that it is not working properly. When she touches an icon on the screen, the program fails to load. You look over the laptop, and the screen appears to be fully intact with no dark blobs or spider web cracks in the panel. You attempt to operate the laptop using the touchscreen, but it appears non-responsive to your touch. Which of the following components MOST likely needs to be replaced? ​ GPU ​ Inverter ​ Digitizer ​ LCD panel

Digitizer OBJ-1.2: A digitizer is the thin transparent layer of plastic in a touchscreen display that reads the signal from the touch and transports it to the processing unit. It is the part that you can touch without disassembling the device. The LCD screen is the panel that is inside the digitizer is the thin transparent layer of plastic in a touchscreen display that reads the signal from the touch and transports it to the processing unit. It is the part that you can touch without disassembling the device. The LCD screen is the panel that is inside the device, which displays the image. You cannot get to the LCD without taking the device apart first. When only the touch screen is broken, you should still see what is happening on the screen, and the screen should still function as normal. When only the LCD is broken, you can still use the touchscreen, but the panel will have dark blobs or spider web looking cracks (or both). When both LCD and touchscreen are damaged, you may still be able to use portions of the touchscreen, and some parts of the LCD may display the image, but you will incur obvious difficulties in using the device as normal. You can not get to the LCD without taking the device apart first. When only the touch screen is broken, you should still see what is happening on the screen, and the screen should still function as normal. When only the LCD is broken, you can still use the touchscreen, but the panel will have dark blobs or spider web-looking cracks (or both). When both LCD and touchscreen are damaged, you may still be able to use portions of the touchscreen, and some parts of the LCD may display the image, but you will incur obvious difficulties in using the device as normal.

You just installed an SSD into a laptop to increase the storage speed of the device. Which of the following should you configure to increase the lifespan of the newly installed SSD? ​ Enable the paging file within the operating system ​ Enable the power-saving mode of the SSD ​ Disable regularly scheduled defragmentation of the SSD ​ Disable memory caching on the SSD

Disable regularly scheduled defragmentation of the SSD Explanation OBJ-3.4: An SSD (Solid-State Drive) is limited in the total number of write functions that can occur over its lifespan. Due to the immediate ability of an SSD to locate data on the drive (since there is no spinning platter that must be moved to reach the right area to retrieve the data like a regular magnetic hard drive), there is no need to defragment an SSD. When you defrag a hard drive, especially an SSD, it will cause tons of small write accesses, reducing the hard drive's lifespan. And since data is not being read sequentially, it doesn't matter if the file is stored in a hundred different places; the performance will remain the same. Therefore, you should disable any regularly scheduled defragmentation tasks when using an SSD to extend its lifespan.

You want to repair a failed on-board video card by installing a new PCIe card. What is the first step you should take before installing the new PCIe card? ​ Configure the computer to use multiple monitors. ​ Disable the onboard VGA card. ​ Upgrade the video RAM. ​ Uninstall the old VGA driver.

Disable the onboard VGA card. Correct Answer: Before replacing an onboard video card, you should disable the onboard VGA card. Incorrect Answers: You may next be required to uninstall the old driver, but first consult the installation guide for the new video card to see what your next step should be. You are not using multiple monitors. The video RAM is irrelevant.Note: On modern systems, this is done automatically.

A power supply +12 VDC output has dropped to +11.5 VDC. What should you do? ​ Check the capacitors. ​ Replace the power supply with a higher wattage unit. ​ Replace the power supply with a lower wattage unit. ​ Do nothing, as the slight drop is acceptable.

Do nothing, as the slight drop is acceptable. Correct Answer: Do nothing, as the slight drop is acceptable. Most power supplies will still operate acceptably down to around +/-11 VDC. Incorrect Answers: Replacing the power supply with a lower wattage unit might cause other issues, especially if the system needs more wattage than it provides. Replacing the power supply with a higher wattage unit wouldn't hurt, but it's not necessary, either. Checking the capacitors is a made up answer and is incorrect.

What device enables a laptop with a single video output port to support multiple monitors? ​ Adjustable monitor arm ​ Docking station ​ PCMCIA card ​ VGA to DVI converter

Docking station Correct Answer: A docking station enables you to add additional ports and features that a laptop would otherwise not have. Incorrect Answers: A VGA to DVI converter just enables you to hook a DVI cable up to a VGA port. A monitor arm enables you to reposition your monitor. A PCMCIA card is a type of expansion card for a laptop.

You work as a PC Technician for a real estate company. The company has decided to use laptops instead of desktops in the office so that the real estate agents can easily take their laptops with them when they go out to show different properties. You want to create an easy solution for the agents to quickly connect an external monitor, keyboard, mouse, a wired network connection, and an additional hard drive for storage to the laptop whenever they come back into the office. Unfortunately, the laptops used by the agents don't have a built-in wired network connection. Which type of device should you choose to provide all the functionality above? ​ Docking station ​ Thunderbolt ​ USB 4-port hub ​ Port Replicator

Docking station OBJ-1.3: A docking station provides additional capability to a laptop and further expansion of its capabilities. For example, a docking station can provide power, external monitor connections, additional storage, and even CD/DVD drives in them. A port replicator, on the other hand, is simply a device that plugs into a single port, such as a USB port, and then gives you access to additional common ports like serial, USB, parallel, PS/2 (keyboard and mouse connectors), and sometimes even audio jacks. Generally, a port replicator gives you easy access to the existing functionality in a laptop, but a docking station can provide additional capabilities to the laptop, as well.

A technician cannot communicate with one particular IP address and needs to narrow down where the traffic is stopping. Which of the following commands would be used to determine this? A. nslookup B. ipconfig C. nbtstat D. ping E. tracert

E

A user reports the inability to access a company server using the FTP protocol. A technician finds other ports to the server seem to work normally. The technician has determined the problem is an incorrectly configured software firewall on the users machine. Which of the following is MOST likely the cause? A. Incoming connections on port 445 are blocked. B. Outgoing connections on port 443 are blocked. C. Incoming connections on port 143 are blocked. D. Outgoing connections on port 80 are blocked. E. Outgoing connections on port 21 are blocked.

E

Ann, a user, brings her laptop in and reports that it is no longer charging. Additionally, the laptop can no longer stay powered on even when plugged in. Which of the following hardware components is MOST likely in need of replacement? A. Hard drive B. Memory modules C. System fan D. Wireless card E. System board

E

You are purchasing a new video card in a desktop computer. For the best performance, which type of video card should you purchase? A. PCI x16 B. PCI x128 C. AGP D. PCIe x128 E. PCIe x16

E. For a video card, the best standard currently available is PCIe, and the widest channel width is x16. There are no PCI x16 or PCI x128 slots, nor is there a PCIe x128 slot. AGP is an older video expansion standard that is now obsolete.

Which item is not likely to be found in a technician's toolkit? ​ Tweezers ​ Nut Driver ​ Spudger ​ EMP ​ Hemostat

EMP Electromagnetic Pulse (EMP) is not a tool, it is a cause of problems. All the other choices are common tools used by technicians.

You are setting up a projector and a laptop for a big presentation in the conference room. You start up the presentation software and mirror the laptop's display to the project. The image on the screen from the project is flickering intermittently, but the image on the laptop's display is working with no issues. You attempt to change the laptop's resolution to a lower setting and a higher setting, but still, the projector's flickering persists. Which of the following steps should you attempt NEXT? ​ Change the color depth setting on the projector ​ Ensure the project's power cable is connected securely ​ Change the aspect ratio from 16:9 to 4:3 on the laptop ​ Ensure the display cable is securely connected to both the laptop and the projector

Ensure the display cable is securely connected to both the laptop and the projector OBJ-5.4: A flickering image on a projector is a common issue that can occur if the display cable between the laptop and the projector is not connected securely. This is especially common with older style display cables like VGA and DVI. Therefore, it is important to ensure a VGA cable is properly secured using the cable's thumbscrews.

Which of the following symptoms is indicative of a misconfigured BOOT.INI file? ​ Windows boots into Safe Mode only. ​ Error at boot: "NTLDR is missing" ​ Error at boot: "No boot device present" ​ Error at boot: "Windows could not start"

Error at boot: "Windows could not start" Error at boot: "Windows could not start." BOOT.INI's main job is to point to a valid copy of Windows, usually stored in a folder called \WINNT or \WINDOWS. If BOOT.INI doesn't point out a valid copy, this is the error you'll get. Incorrect Answer: Error at boot: "NTLDR is missing." Your Master Boot Record points to NTLDR. If there's a problem with the MBR, if it's corrupt or if the boot order is incorrect, then you'd get this error. Error at boot: "No boot device present". This happens when the BIOS is pointing to a drive that has no bootable partitions.Windows boots into Safe Mode only. While many issues may cause this to happen, if you're able to boot into Safe Mode, you have a bootable copy of Windows and your BOOT.INI is fine.

A user calls the help desk because an important presentation folder is missing from the desktop of his system. The user is certain the folder was there the previous day. The technician views the properties of the parent folder, and confirms a back up listed on the "Prior Versions" tab. According to the theory of troubleshooting, which of the following is the technician's NEXT step? ​ Establish a theory of probable cause. ​ Document findings, actions and outcomes. ​ Test the theory to determine casue. ​ Verify full system functionality and implement preventive measures.

Establish a theory of probable cause. Once you have identified a problem, the next step in troubleshooting theory is to establish a theory of probable cause. Incorrect Answers: Test the theory is incorrect, you need to create the theory first. You cannot document findings, actions and outcomes when you do not have any yet. Verifying the system does not help solve the customer's problem, and since we don't know what happened yet; we cannot implement preventative measures.

Mark wants to add a SOHO router to his LAN. What cable should he use between the SOHO router and his cable modem? ​ USB ​ Coaxial ​ Thunderbolt ​ Ethernet

Ethernet Correct Answer: Ethernet. The incoming WAN connection on a SOHO router is an Ethernet port. Incorrect Answers: Thunderbolt connects peripherals, such as a external mass storage drive. Coaxial is used to connect the cable modem to the wall jack, the connection point from the cable Internet service provider. Although some networking devices use USB, that's not a typical port on a SOHO router.

A client reports that their workstation is continually crashing when using certain applications on their Windows system. The system will stop working and display a BSOD error on the screen. Which of the following is the most likely cause of this BSOD error? ​ Failure of the graphics card ​ Failure of the processor ​ Failure or corruption of the memory ​ Failure of the power supply

Failure or corruption of the memory OBJ-5.2: The Blue Screen of Death (BSOD) is a "stop screen" that appears when the Windows operating system detects a critical error and literally stops the system so that the error doesn't cause any loss of data. All operating systems have some form of "stop screen," but the Windows version got the name BSOD since it was a screen with a full blue background and white text containing troubleshooting information and error codes. On a Mac (OS X) system, the BSOD is replaced by the "Pinwheel of Death," which is an endlessly spinning mouse pointer displayed on the screen. This usually occurs due to a memory failure or memory corruption in the system.

You have been asked to install a network cable inside a conduit placed underground and connected to two buildings located about 1 KM apart. Which of the following cable types should you choose? ​ Fiber ​ Coaxial ​ Plenum ​ Shielded

Fiber OBJ-3.1: A fiber optic cable is a network cable that contains strands of glass fibers inside an insulated casing. They're designed for long-distance, high-performance data networking and telecommunications. If you are dealing with connecting two networks over a long distance (over a few hundred meters), you should use a fiber optic cable.

Which of the following devices would you configure an ACL to implement a security policy within your network? ​ Hub ​ Firewall ​ Repeater ​ Switch

Firewall OBJ-2.2: A firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and an untrusted external network, such as the internet.

One of the network printers is producing copies where the toner is smeared on paper after printing. What component should be checked? ​ Print spooler ​ Paper output tray ​ Fuser ​ Maintenance kit

Fuser Correct Answer: Thermal and laser printers use a fuser to heat the toner to a melting point. Once melted, the toner will fuse with the fibers of the paper. Incorrect Answers: A maintenance kit is a kit of replacement parts. It may assist in the repair, but it is not a component. The paper output tray is only used once the printing process is complete. It will not affect the print job. The print spooler is a software-based program that schedules print jobs; it does not affect the actual printing.

The person responsible for maintaining the company's laser printer is out of the office. You are told to service the laser printer. Which part of the printer should you avoid touching and why? ​ Laser. The beam is very hot to the touch. ​ Fuser. One of its two rollers is a heated roller. ​ Paper tray. Smudge prints cause paper jams. ​ Toner. The toner gets to a boiling point.

Fuser. One of its two rollers is a heated roller. Correct Answer: Fuser. One of its two rollers is a heated roller. The fuser is the only component that is hot to the touch. Incorrect Answers: Laser. While the beam is very hot to the touch, you can't access it. And even if you could, it is not powerful enough to hurt you. Toner. The toner gets to a boiling point. The toner can be messy, but also will not hurt you. Paper tray. Smudge prints cause paper jams. The paper tray is completely safe to touch.

A client has a workstation with a RAID 5 configuration and reports that slower than normal performance occurs when reading/writing files to the RAID. You run a diagnostic program against the RAID, and the system passes all of the diagnostic tests without any issues. While you are running the tests, though, you head clicking noises coming from the RAID. Which of the following is the MOST likely cause of the slow performance being experienced by the client? ​ RAID controller ​ Hard drive ​ SSD ​ Cooling fan

Hard drive OBJ-5.3: Based on the symptoms described, the RAID itself is fully functional, so the RAID controller is not causing any problems. This could be caused by a failing hard drive or the system overheating due to the slow performance. Since there is a clicking noise, this is most likely a hard drive failure since a cooling fan makes a whirring or grinding noise instead. Therefore, we can assume the RAID is made up of magnetic hard drives, and one of those hard disks is starting to fail. To replace the hard drive, you need to find a comparable drive that will work in the array, reboot the computer, and enter the RAID setup program to rebuild the array after replacing that hard drive. If you use a RAID 1, RAID 5, or RAID 10, the system will continue to operate normally, but with slower performance, until you replace the hard drive and rebuild the RAID.

The link light on the NIC of Rob's desktop normally glows yellow, but when he moved the PC to a construction trailer and plugged it in, it glowed green. The PC and networking run well, but Rob is confused about the color change. What could cause this? ​ He's not on the Internet. ​ There's too much network activity. ​ He's on a different speed LAN. ​ Dirt has affected the color of the link light.

He's on a different speed LAN. Correct: Many multispeed NICs show their connection speed by the color of the link light. Incorrect: The PC is working fine, so it's not network activity or an inability to access the Internet. It might be dirt, but that's a bit silly.

Albert is assembling a new PC from parts. When asked if he needed thermal compound, he glanced at his parts and said, "No." Why would Albert say such a thing? ​ His fan comes with thermal compound pre-applied on the bottom of the heat sink. ​ His CPU comes with thermal compound pre-applied on the top. ​ He's using a polished heat sink on his CPU. ​ His CPU doesn't require thermal compound.

His fan comes with thermal compound pre-applied on the bottom of the heat sink. Correct: His heat sink and fan come with thermal compound pre-applied on the bottom of the heat sink. It's common for fans to come this way. Incorrect: All CPU-fan combinations on a modern PC require thermal compound. No heatsinks come with thermal compound pre-applied on the top of the heatsink.

You are installing Windows 2016 on a rack-mounted server and hosting multiple virtual machines within the physical server. You just finished the installation and now want to begin creating and provisioning the virtual machines. Which of the following should you utilize to allow you to create and provision the virtual machines? ​ Disk management ​ Device manager ​ Hypervisor ​ Terminal services

Hypervisor OBJ-4.2: A hypervisor, also known as a virtual machine monitor, is a process that creates and runs virtual machines (VMs). A hypervisor allows one host computer to support multiple guest VMs by virtually sharing its resources, like memory and processing. To create and provision virtual machines within the Windows 2016 operating system, you can use a Type II hypervisor like VM Ware or VirtualBox.

Which of the following cloud computing resources are MOST important when determining a cloud file-storage synchronization application's performance? ​ I/O bandwidth ​ Disk speed ​ RAM utilization ​ CPU utilization

I/O bandwidth OBJ-4.1: I/O bandwidth is the measurement of the amount of input and output operations that can be performed within a given time. The higher the I/O bandwidth, the faster and more efficient a cloud file-storage synchronization application will become. Applications that rely on large amounts of reading and writing of data require a high amount of I/O bandwidth. Disk speed is not nearly as important since most cloud file-storage systems use a virtualized file system for storage and do not rely on a single disk. Instead, they rely on a storage area network or a virtualized storage solution.

Which of the following synchronization formats should be used to allow email access from all their devices? ​ SMTP ​ POP3 ​ iCal ​ IMAP

IMAP Correct Answer: IMAP was specifically designed to retrieve e-mail messages from a mail server using multiple e-mail clients. By default, it leaves messages on the mail server, unless the user specifically deletes an email. Incorrect Answers: SMTP is incorrect, it is the protocol for sending e-mail. iCal is incorrect. It is a Windows calendar server. POP3 is not designed to allow e-mail access from a single device.

A user calls the helpdesk and states that they are receiving an IP conflict error on their computer. The user is on a company network that uses DHCP. The technician verifies the PC is using DHCP to obtain TCP/IP settings. Which of the following commands should the helpdesk technician use to resolve this issue? (Select two.) ​ IPCONFIG /RELEASE ​ IPCONFIG /RENEW ​ IPCONFIG /FLUSHDNS ​ IPCONFIG /ALL ​ IPCONFIG /REGISTERDNS

IPCONFIG /RELEASE ​ IPCONFIG /RENEW ​ Correct Answer: The IPCONFIG /RELEASE command releases a computer's IP address, and the IPCONFIG /RENEW command gets the computer a new one. Incorrect Answers: The IPCONFIG /REGISTERDNS command refreshes a computer's DHCP lease. The IPCONFIG /ALL command displays a comprehensive list of a computer's IP information. IPCONFIG /FLUSHDNS deletes a computer's DNS cache.

Your email client has been acting strangely recently. Every time you open an email with an image embedded within it, the image is not displayed on your screen. Which of the following is the MOST likely cause of this issue? ​ Incorrect settings in your email proxy server ​ Incorrect settings in your web browser's trusted site configuration ​ Incorrect security settings in the email client ​ Incorrect settings in the host-based firewall ​ Incorrect email settings in the antivirus software

Incorrect security settings in the email client OBJ-1.6: This is a security setting in the mail client to prevent malicious malware and viruses from entering your environment. If the images are not downloaded on a received email, they will display as a red X within the reply email. If the email was forwarded, then the images will be displayed as a white box with a black border. This can be seen in the source code as 'Image Removed by Sender' next to where the Images should be. For example, in the Microsoft Outlook email client, the security settings for hosted images can be changed within the mail client's Trust Center (Outlook Options -> Trust Center -> Trust Center Settings).

You are working as a technician for a college. One of the professors has submitted a trouble ticket stating that the projector connected to the workstation in his classroom is too dim. You look at the image being projected on the wall and notice it is dim, but the image appears to be displayed clearly and correctly. What is the FIRST thing you should do to make the image brighter? ​ Replace the bulb in the projector ​ Increase the contrast on the projector ​ Modify the workstation's video resolution ​ Update the video driver on the workstation

Increase the contrast on the projector ​OBJ-5.4: If the image being displayed is dim, this could be an issue with your project's contrast. By increasing the contrast, you can increase the amount of light reflected from an all white image and an all black image. The higher the contrast ratio, the brighter the whites will appear in the image. For example, if you have a projector with a 3000:1 contrast ratio, this means that the white image is 3000 times brighter than the black image. The higher the contrast ratio, the more detail you can see on the projected image, regardless of whether it is numbers, pictures, graphs, text, or video. Contrast is what makes it possible for us to see the subtle shades of colors. If the project supports the contrast or contrast ratio adjustment, you should increase the contrast to brighten the screen's image.

You work as a computer technician for a production company that travels worldwide while filming and editing music videos. Due to the nature of video editing, you will be building a video production workstation for the company that will have the maximum amount of RAM, an 8-core CPU, a dedicated GPU, and a redundant array of solid-state devices for storage. You are now determining which power supply to install in the system. What is the MOST important characteristic to consider when choosing a power supply? ​ Amperage of 12V rail ​ Number of SATA connectors ​ Input voltage ​ Efficiency rating

Input voltage OBJ-3.7: This question provides you with many details, but the key phrase in finding the answer is in the first sentence. This computer will be traveling worldwide, and the most important consideration will be the input voltage. If you choose a 120-volt power supply, it would be destroyed if plugged into a 240-volt outlet (commonly used outside the United States). Conversely, if you use a 240-volt power supply and plug it into a 120-volt outlet, it will not function due to the lower voltage. Therefore, you need to pick a power supply with dual voltage selection capability for maximum compatibility worldwide.

Which of the following devices would allow you to control and provide input commands to multiple servers within the same server rack using a single set of input devices? ​ Mouse ​ Keyboard ​ KVM ​ Touchpad

KVM OBJ-3.6: A KVM switch (with KVM being an abbreviation for "keyboard, video and mouse") is a hardware device that allows a user to control multiple computers from a single set of input devices (such as a keyboard, video monitor, and a mouse). Generally, a single KVM installed in each server rack allows the administrator to quickly switch between physical servers within the rack using the same keyboard, mouse, and monitor.

You have been asked by Dion Training to build a specialized computer that will be used exclusively as a gaming machine for beta testing some new video games they are developing. Which of the following should you install to BEST meet the company's needs? (Select FOUR) ​ CPU with integrated GPU ​ 1 TB HDD ​ Liquid cooling 7.1 Dolby Sound audio card ​ Dedicated video card with GPU 512 GB SSD

Liquid cooling 7.1 Dolby Sound audio card ​ Dedicated video card with GPU 512 GB SSD OBJ-3.8: According to CompTIA, the four main things you need to include for a gaming PC are (1) an SSD, (2) a high-end video/specialized GPU, (3) a high-definition sound card, and (4) high-end cooling. Based on the options provided, you should pick the 512 GB SSD (instead of the 1 TB HDD), the dedicated video card with GPU (instead of the CPU with integrated GPU), the 7.1 Dolby Sound audio card (instead of integrated sound from the motherboard), and the high-end cooling (liquid cooling over fans) for this workstation's configuration.

Which of the following is the test we use to verify a NIC is sending and receiving packets correctly? ​ Bit Error Rate Test ​ Parity ​ Loopback ​ Checksum

Loopback Correct Answer: A loopback test utilizes a loopback plug which is inserted into the NIC's RJ-45 port. You then run a PING 127.0.0.1 or PING localhost to instruct the card to ping itself. Incorrect Answers: A Bit Error Rate Test is used on high capacity voice lines such as T1 or T3. In computing, a checksum is most commonly a value placed on computer files to verify they haven't been altered. Parity is an older testing method, sometimes seen in older high-end RAM, which uses an extra bit to test a set of data bits.

You have just installed a new toner cartridge in your laser printer. You print a test page to check that everything is working correctly and you get nothing but a blank sheet of paper as your result. What is the FIRST thing you should check? ​ Replace the transfer corona wire ​ Make sure the cartridge shipping tab has been removed ​ Re-install your printer driver ​ Shake the toner cartridge to loosen up the toner

Make sure the cartridge shipping tab has been removed Correct Answer: The cartridge shipping tab is the long strip that you remove from the cartridge right before you install it. If you don't remove it, no toner for you! Incorrect Answers: Shaking it would be a great idea if the printer gradually started to fade in print quality over a long period of time. Re-installing the driver wouldn't help in this situation. Replacing the corona isn't a bad idea at all, but it would probably be the last thing to do in this situation.

A client has asked you to build a computer to use as part of their home theater system. The HTPC will be used primarily to stream videos in their living room and must have a small form factor to fit into their entertainment center next to their surround sound system. Which of the following motherboards would be the BEST choice for an HTPC system? ​ Micro-ATX ​ ITX ​ ATX ​ Mini-ITX

Mini-ITX OBJ-3.5: A form factor means the physical dimensions of a system, and the motherboard form factor defines the size of the case you can use. There is no performance difference between different motherboard form factors, except for the size and number of expansion slots. Mini-ITX is the most commonly used form factor with HTPC systems because they require the smallest fans or passive cooling, which minimizes the noise produced by the system. A micro-ATX motherboard produces more heat and is larger in size than a mini-ITX motherboard. Micro-ATX motherboards also require a larger (and louder) fan to keep the system cooled, so it is a poor choice for an HTPC.

A client's PC will no longer boot following the annual test of a company's back-up generator system. When the client attemps to turn on the system, the display receives no output. Upon arrival, the technician also notices there are no POST beep codes when turned on, however, the system's fans do begin to run after turning on. The client describes the fans as being louder and faster than normal. Which of the following is the MOST likely issue? ​ The power supply no longer functions due to damage. ​ Motherboard was damaged during the power test. ​ RAM was damaged by ESD. ​ The power test erased the hard drive.

Motherboard was damaged during the power test. ​ Correct Answer: The motherboard is not working, because there are no beep codes. Incorrect Answers: A power test cannot erase a hard drive. RAM damage could prevent the system not to boot, however, the motherboard would still emit a POST beep code for RAM. If the power supply was not functional, the fan would not spin.

Natalie just bought a new mobile Android phone, but her current phone is an iPhone. She needs to move all of her phone's existing contacts and appointments from her calendar from her current phone to her new phone. Natalie's iPhone was configured to use her Dion Training corporate account to save all her contacts and appointments to their cloud-based service, as well. Which of the following is the BEST way for Natalie to migrate her data from her old iPhone to her new Android device? ​ Natalie should create a NFC connection to transfer all compatible data between the iPhone and the Android devices ​ Natalie should log into her corporate email account on the new Android phone and restore her contacts and appointments to the new device ​ Natalie should create a wireless Bluetooth connection between the iPhone and the Android devices and use it to copy her contacts and appointments to the new device ​ Natalie should perform a backup of her iPhone using iTunes on her PC and then import the contacts and appointments from her PC to her new Android device

Natalie should log into her corporate email account on the new Android phone and restore her contacts and appointments to the new device Explanation OBJ-1.7: Since Natalie has a corporate account used to synchronize data from her device to the cloud, the easier and quickest method would be to fully synchronize her contacts and appointments to her corporate cloud-based account from her old device first. Then, she can configure her new Android device to access her corporate account. It will automatically download and synchronize the data from the cloud-based servers onto her new Android device.

What would cause a laser printer to generate a totally black sheet? ​ No power to the primary corona Malfunctioning imaging laser ​ No power to the transfer corona ​ Low level in the toner cartridge

No power to the primary corona With no power to the primary corona, toner will be transferred to the entire drum, creating a totally black sheet. Incorrect Answers: Low toner would cause a lighter image to be printed, not a black one. With no power to the transfer corona, the paper would be blank. If anything, a malfunctioning laser would cause a lighter image, not a darker one.

What happens when you attempt to print to a phantom print device? ​ Nothing. The print job goes to the printer, but no output occurs. ​ Windows will display a "Print device not found" error. ​ Windows will display an "Invalid print device" error and prompt for a valid print device. ​ Windows will display an "Invalid print device" error.

Nothing. The print job goes to the printer, but no output occurs. Correct Answer: When you print to a phantom or virtual print device, the software printer takes the print job and processes it. Then nothing else happens. Incorrect Answers: As long as the printer software is valid, Windows will not report anything unusual or missing.

Your son recently purchased a touchscreen laptop to use for his schoolwork. Your son just came home from school and tells you that he accidentally dropped his laptop earlier today. You open up the laptop and turn on the screen. You look over the laptop, and the screen appears to have some spider web cracks in the panel, but you can still fully see the images on the display. You attempt to operate the laptop using the touchscreen, but it appears to be fully responsive to your touch. Which of the following components MOST likely needs to be replaced? ​ GPU ​ Digitizer ​ Inverter ​ LCD panel

OBJ-1.2: A digitizer is the thin transparent layer of plastic in a touchscreen display that reads the signal from the touch and transports it to the processing unit. It is the part that you can touch without disassembling the device. The LCD screen is the panel that is inside the device, which displays the image. You cannot get to the LCD without taking the device apart first. When only the touch screen is broken, you should still see what is happening on the screen, and the screen should still function as normal. When only the LCD is broken, you can still use the touchscreen, but the panel will have dark blobs or spider web looking cracks (or both). When both LCD and touchscreen are damaged, you may still be able to use portions of the touchscreen, and some parts of the LCD may display the image, but you will incur obvious difficulties in using the device as normal.

A new smartphone supports users' ability to transfer a photograph by simply placing their phones near each other and "tapping" the two phones together. What type of technology does this most likely rely on? ​ IR ​ RF ​ BT ​ NFC

OBJ-1.5: NFC, or near-field communication, is a set of communication protocols that enable two electronic devices, one of which is usually a portable device such as a smartphone, to establish communication by bringing them within 4 cm of each other. This is commonly used for contactless payment systems, transferring contacts, or transferring a file from one device to another.

Both Apple and Samsung have released their own version of contactless mobile payment solutions. For example, Apple Pay allows users to place their iPhone or Apple Watch within an inch of a credit card machine at a store to make a payment. Which of the following wireless technologies does this type of payment system rely upon? ​ Bluetooth ​ NFC Wi-Fi ​ Infrared

OBJ-1.5: NFC, or near-field communication, is a set of communication protocols that enable two electronic devices, one of which is usually a portable device such as a smartphone, to establish communication by bringing them within 4 cm of each other. This is commonly used for contactless payment systems, transferring contacts, or transferring a file from one device to another.

Which of the following types of wireless connections requires a pin to be entered as part of the pairing process before it being utilized? ​ Radio frequency ​ NFC ​ Infrared ​ Bluetooth

OBJ-1.6: Wireless devices with Bluetooth radios must be paired with each other before they can communicate. This involves making them discoverable and entering a PIN as part of the pairing process. The pairing process works with Bluetooth profiles, and each device has to be compatible. For example, you can only pair a mouse or keyboard with a device that's been designed to work with that type of accessory.

Your network is running extremely slow. You have troubleshot the issue and determined that there are too many collisions on the network. Your network currently has 20 computers, all connected to a single 24-port hub on the network. Which of the following devices should you install to decrease the number of collisions? ​ Gateway ​ Firewall ​ Switch ​ Repeater

OBJ-2.2: A hub provides no intelligence in its interconnection functions. Therefore whatever is received on one port is repeated out every other port. This leads to many collisions occurring on the hub and increases the number of rebroadcasts that slows down the entire network. Replacing the hub with a switch will break down the hub's single collision domain into 24 separate collision domains (one per port on the switch) and eliminate collisions. This will increase the overall speed of the network.

Your boss has requested that you replace all of the hubs in the network with switches. What is the MOST likely reason for doing this? ​ PoE is not supported by the hubs ​ There are no more ports available on the hubs ​ Using hubs causes too many collisions on the network ​ An individual port has gone bad on one of the hubs

OBJ-2.2: The MOST likely reason for changing all the hubs to switches is to increase the network's performance. Hubs treat every port on the hub as part of the same collision domain, and these lead to a high amount of collisions on the network that degrades performance. By replacing all of the hubs with switches, the network can run much faster and more efficiently. The other reasons are possible, but simply not the BEST reason for purchasing all new switches to replace the current hubs.

You have been asked to install a new wireless network for your company's new branch office. Your boss wants the network to be high-speed and is willing to buy new hardware and network adapters to ensure all the devices can communicate on the new network. Which of the following wireless standards should you install for the fastest data transfer speeds? ​ 802.11a ​ 802.11n ​ 802.11ac ​ 802.11g

OBJ-2.4: 802.11ac networks are the fastest wireless networks in use today. They support speeds of up to 1 Gbps using the 5.0 GHz frequency band. 802.11n can use both 2.4 GHz and 5.0 GHz frequencies but only supports 108-600 Mbps speeds. 802.11a uses the 5.0 GHz frequency and supports 54 Mbps, while 802.11g uses the 2.4 GHz frequency and supports 54 Mbps.

You are installing a new wireless network in your office building and want to ensure it is secure. Which of the following configurations would create the MOST secure wireless network? ​ WPA2 and AES ​ WEP and TKIP ​ WPA and MAC filtering ​ WPA2 and RC4

OBJ-2.4: The most secure wireless network configuration utilizes WPA2 with AES encryption. WPA2 is the most secure wireless encryption standard, as it has replaced both WPA and WEP. AES is a robust encryption algorithm that is used by default in the WPA2 standard.

Your company is currently using a 5 GHz wireless security system, so your boss has asked you to install a 2.4 GHz wireless network to use for the company's computer network to prevent interference. Which of the following can NOT be installed to provide a 2.4 GHz wireless network? ​ 802.11ac ​ 802.11b ​ 802.11n ​ 802.11g

OBJ-2.4: Wireless networks are configured to use either 2.4 GHz or 5.0 GHz frequencies, depending on the network type. 802.11a and 802.11ac both utilize a 5.0 GHz frequency for their communications. 802.11b and 802.11g both utilize a 2.4 GHz frequency for their communications. 802.11n utilizes either 2.4 GHz, 5.0 GHz, or both, depending on the Wi-Fi device's manufacturer.

You are trying to select the best device to install to detect an outside attacker trying to reach into your internal network. The device should log the event, but it should not take any action to stop it. Which of the following devices would be the BEST for you to select? ​ Authentication server ​ Proxy server ​ IDS ​ IPS

OBJ-2.5: An intrusion detection system is a device or software application that monitors a network or system for malicious activity or policy violations. Any malicious activity or violation is typically reported to an administrator or collected centrally using a security information and event management system. Unlike an IPS, which can stop malicious activity or policy violations, an IDS can only log these issues and not stop them.

You are trying to select the best device to install to proactively stop outside attackers from reaching your internal network. Which of the following devices would be the BEST for you to select? ​ Proxy server ​ IDS ​ IPS ​ Syslog server

OBJ-2.5: An intrusion prevention system (IPS) is a form of network security that detects and prevents identified threats. Intrusion prevention systems continuously monitor your network, looking for possible malicious incidents, and capturing information about them. An IPS can block malicious network traffic, unlike an IDS, which can only log them.

You are trying to send an email to your boss, but it refuses to leave your outbox. You see an error message displayed on the screen that tells you to verify your outbound server settings. Which of the following servers should you configure your email client to use to ensure your emails are being sent? ​ SMTP server SSH server ​ POP3 server ​ DNS server

OBJ-2.5: SMTP is the Sendmail Transfer Protocol. An SMTP server uses the SMTP protocol to send emails from one server to another. If your mail client cannot send an email properly, it is likely an issue with your SMTP server.

Your company has an office in Boston and is worried that its employees may not reach the office during periods of heavy snowfall. You have been asked to select a technology that would allow employees to work remotely from their homes during poor weather conditions. Which of the following should you select? ​ VLAN ​ IDS ​ VPN ​ NAT

OBJ-2.6: A remote-access VPN connection allows an individual user to connect to a private network from a remote location using a laptop or desktop computer connected to the internet. A remote-access VPN allows individual users to establish secure connections with a remote computer network. Once established, the remote user can access the corporate network and its capabilities as if they were accessing the network from their own office spaces.

Which of the following is a public IP address? ​ 169.254.2.1 ​ 10.3.2.1 ​ 8.4.2.1 ​ 192.168.2.1

OBJ-2.6: The IP address of 8.4.2.1 is public and is therefore routable. The IP address of 10.3.2.1 is a private Class A IP address, and therefore non-routable. The IP address of 192.168.2.1 is a private Class C IP address, and therefore non-routable. The IP address of 169.254.2.1 is an APIPA (Automatic Private IP Address), and therefore non-routable.

Your college has several campuses located across the city. Within each campus, the buildings are interconnected with a campus area network. If you connect each of the campuses across the city, what type of network would this become? ​ MWN ​ WAN ​ MAN ​ LAN

OBJ-2.7: A metropolitan area network (MAN) is a computer network that interconnects users with computer resources in a geographic region of the size of a metropolitan or city area. The term MAN is applied to the interconnection of local area networks (LANs) or campus area networks (CANs) across a city into a single larger network. A MAN is larger than a CAN or MAN, but smaller than a WAN.

You work for the city's Department of Motor Vehicles (DMV). There are five DMV locations spread out across the city that you have been asked to connect with a network. You have created a list of requirements for this network, including that it must be wired and support at least 1 Gbps of bandwidth. Which of the following network types would MOST likely be used for the DMV to connect their internal networks across the city securely? ​ MAN ​ LAN ​ PAN ​ WLAN ​ WAN

OBJ-2.7: A metropolitan area network (MAN) is a computer network that interconnects users with computer resources in a geographic region of the size of a metropolitan or city area. This is the most appropriate choice based on the requirements provided. MAN is a term applied to the interconnection of local area networks (LANs) or campus area networks (CANs) across a city into a single larger network. A MAN is larger than a CAN or MAN but smaller than a WAN.

You and your friends are hanging out in a bar downtown and notice that the entire area around the bar has a great wireless network called "Downtown Metro." This wireless network was built by the city and currently covers about 5 square blocks of the downtown area. What type of network best classifies this wireless network? ​ PAN ​ MWN ​ LAN ​ WAN

OBJ-2.7: A municipal wireless network (MWN) is a citywide wireless network. This usually works by providing municipal broadband via Wi-Fi to large parts or all of a municipal area by deploying a wireless mesh network. The typical deployment design uses hundreds of wireless access points deployed outdoors, often on poles.

You just configured your iPhone to connect to your car's stereo over Bluetooth to play your favorite podcasts while driving to work. What type of network did you create between your iPhone and your car? ​ WAN ​ MWN ​ LAN ​ PAN

OBJ-2.7: A personal area network (PAN) is a computer network for interconnecting devices centered on a person's workspace. A PAN provides data transmission among devices such as computers, smartphones, tablets, and personal digital assistants. PANs can be used for communication among the personal devices themselves or for connecting to a higher level network and the internet where one master device takes up the role as a gateway. PANs usually operate over Bluetooth or USB connections.

Your home network has a wireless access point (WAP) that allows your smartphone and tablet to connect to your internal network. The WAP is connected to a router and a cable modem to provide internet access. A coaxial cable carries the network traffic from the cable modem to the cable company's central office for transmission to and from the internet. Which of the following types of networks would best describe this network configuration between your home network and the internet through your cable modem connection? ​ LAN ​ WAN ​ PAN ​ MAN

OBJ-2.7: A wide area network (WAN) is a telecommunications network that extends over a large geographical area for the primary purpose of computer networking. Wide area networks are often established with leased telecommunication circuits. This is usually a DSL, cable connection, fiber connection, or satellite connection in a home network.

Which type of internet connection is terminated at a local switching center and requires a different media type between the switching center and the end customer? ​ DSL ​ ISDN ​ Fiber ​ Cable

OBJ-2.7: DSL is a technology used to transmit multimedia traffic at high-bit rates over twisted-pair copper wire (over ordinary telephone lines). This allows the telecommunications company to connect a user's home to the local switching center using normal telephone lines, then connect that local switching center (using a DSLAM to multiplex the connections) to the central office over a single high-speed cable (such as a fiber connection).

Your company's network has 33 computers that are directly connected to two switches using CAT 5e cables. The two switches are interconnected using a fiber cable with MTRJ connectors at the end of the cables. All 33 computers and the 2 switches are located within the same office building. Which of the following types of networks would best describe this network configuration? ​ MAN ​ WAN ​ LAN ​ PAN

OBJ-2.7: Since all of the computers and switches are located in the same building, it is best described as a Local Area Network (LAN) configuration.

A workstation is having intermittent issues and continues to receive system errors or freeze. You believe that the problem is being caused by the workstation's motherboard, not getting the proper amount of power to it, and you want to perform a test to confirm your theory. Which of the following tools should you use to determine if the proper amount of power is being supplied to the motherboard? ​ Multimeter Cable tester ​ POST card ​ Loopback plug

OBJ-2.8: A multimeter has the ability to measure the voltage, amperage, and resistance of a circuit. A multimeter can be a hand-held device useful for basic fault finding and field service work or a bench instrument that can measure electricity with a high degree of accuracy. Using a multimeter, you can determine the exact voltage being supplied to the motherboard from the workstation's power supply.

You have been asked to verify that a server rack has been properly installed and grounded. Which tool should you utilize to verify that the server rack is properly grounded? ​ Loopback plug ​ Voltmeter ​ Toner probe ​ Multimeter

OBJ-2.8: A multimeter has the ability to measure the voltage, amperage, and resistance of a circuit. If you use the lowest ohms (resistance) setting, you can touch the multimeter's black lead to a grounded metal surface and touch the red lead to each circuit wire. If you get a meter reading of zero ohms (low resistance), this indicates that the circuit is properly grounded. If you get a meter reading of infinity, O.L., Open Loop, or a needle that pegs high on the meter, this indicates an open circuit with no path to ground.

You have signed up for a web-based appointment scheduling application to help you manage your new IT technical support business. What type of solution would this be categorized as? ​ DaaS ​ IaaS ​ SaaS ​ PaaS

OBJ-4.1: Software as a Service (SaaS) is used to provide web applications to end-users. This can be a calendar, scheduling, invoicing, word processor, database, or other programs. For example, Google Docs and Officer 365 are both word processing SaaS solutions. QuickBooks Online is one example of a SaaS solution for accounting.

You are troubleshooting a network connection issue between the wall jack in a user's office and the switch in the communications closet. When you plug a network cable into the wall jack, there is no connection. You check the switch in the communications closet to determine if the wall jack is properly connected to the switch. Unfortunately, none of the cables in the communication closet are labeled. Which of the following tools should you use to determine which cable in the communications closet is connected to the wall jack in the user's office since none of the cables are properly labeled? ​ Loopback plug ​ Punchdown tool ​ Multimeter ​ Tone generator and probe

OBJ-2.8: A tone generator is connected to a wall jack and sends a repeating signal over the cable. The probe can then be used to detect which cable is attached to the wall jack by detecting the signal being sent by the tone generator. The probe needs to be near or touch the cable with the tone generator attached to identify it positively. While a multimeter could be used (in resistance mode) to determine if two ends of a cable are attached to the same cable, the distance between the user's office and the communication closet would prevent a multimeter from being used in this case.

A user wants to print a spreadsheet horizontally on a piece of paper instead of vertically to fit more columns on a single page. What setting should the user enable on the printer for this print job to achieve this result? ​ Transparency ​ Collate ​ Duplex ​ Orientation

OBJ-3.10: By default, Microsoft Excel prints worksheets in portrait orientation (taller than wide). You can change the page orientation to landscape on a worksheet-by-worksheet basis. Generally, orientation is either portrait (taller rather than wider) or landscape (wider rather than taller).

You are configuring a new printer for a small real estate office. There are only 4 computers in the network, and they are all connected to a single 4-port switch/router/cable modem device. There are no additional open ports on the device and no servers configured within the network. All the computers operate as part of a single workgroup with no domain controller. You need to configure the printer to allow all 4 computers to print to it as long as they are connected to the switch. Which of the following methods would BEST allow the users to print to the printer based on this network's configuration? ​ Configure the printer to support cloud printing ​ Configure the printer to support Bluetooth printing ​ Configure a print server and connect the printer to it ​ Configure it as a shared printer connected to one of the four workstations

OBJ-3.10: Due to the small size of the network and the lack of additional open switch ports, it would BEST to connect the printer to one of the workstations and configure it as a shared printer. This will allow any of the other workstations to print to the shared printer via the connected workstation.

A user wants to print a large job on both the front and back sides of the paper. Which of the following settings should the technician advise the user to change in the printer settings? ​ Transparency ​ Orientation ​ Collate ​ Duplex

OBJ-3.10: Duplex printing is a feature of some computer printers, multi-function printers (MFPs), and copy machines that allow the printing of a sheet of paper on both sides automatically. Without this capability, print devices can only print on a single side of the paper, sometimes called single-sided printing or simplex printing. With duplex printing, information is printed on the front side of a piece of paper, and then the paper is automatically fed back through the printer to print the information on the backside of the paper.

A user wants to print 2 copies of a 3-page report at once. The user would like the pages to come out of the printer in the order of pages 1, 2, 3, 1, 2, 3 instead of pages 1, 1, 2, 2, 3, 3. What printer setting should the user enable for this print job to achieve this result? ​ Duplex ​ Orientation ​ Transparency ​ Collate

OBJ-3.10: In printing, the term collate refers to the gathering and arranging individual sheets or other printed components into a pre-determined sequence. Basically, collating creates consistent, logical sets from multiple parts, such as printing a series of pages in a report like pages 1, 2, 3 before printing the second copy. This makes it easier to staple and distribute to people after coming out of the printer.

Your company's printer is displaying an error of "Replace cartridge 1. Filament is empty." Based on this error, what kind of printer is your company using? ​ 3D ​ Impact ​ Thermal ​ Inkjet ​ Laser

OBJ-3.11: 3D printers use a filament to create the objects being printed. A 3D printing filament is a thermoplastic feedstock for fused deposition modeling by 3D printers. There are many types of filament available with different properties, requiring different temperatures to print the final product or object. On the exam, you should be thinking about a 3D printer anytime you see the word filament.

Which of the following cables supports both charging and data transfer with a non-directional connector inserted into a port on the device? ​ Micro-USB ​ USB-A ​ USB-C ​ Mini-USB

OBJ-3.1: There are many variations of USB cables in use today. Many of these (like Micro-USB, Mini-USB, USB-A, and USB-B) can only be inserted into the port in a single direction due to their physical shape. USB-C, though, can be inserted in any direction since it is designed as a non-directional connector.

You have been asked to run to the store and purchase a network cable for your boss's new laptop. He tells you that he needs the network cable to support at least 750 Mbps, but he also doesn't want to spend a lot of money. Which of the following network cables should you purchase to meet the high bandwidth and low price requirements? ​ CAT 6 ​ CAT 5 ​ CAT 7 ​ CAT 5e

OBJ-3.1: You should purchase a CAT 5e cable since it can support up to 1000 Mbps (1 Gbps) of bandwidth and is the cheapest option provided that will meet your boss' bandwidth requirements. CAT 5 cables only support 100 Mbps. Therefore, it won't meet the requirements. CAT 6 and CAT 7 cables will support 1 Gbps and 10 Gbps, respectively, but they are more expensive than CAT 5e cables. Therefore, the CAT 5e cable is the best choice for the requirements provided by your boss.

Which of the following types of connectors are used to terminate a household telephone cable? ​ RG-6 ​ RG-59 ​ RJ-11 ​ RJ-45

OBJ-3.2: An RJ-11 (Registered Jack 11) is a telephone interface that uses a cable of twisted wire pairs and a modular jack with two, four, or six contacts. RJ-11 is the common connector for plugging a household telephone into the wall and the telephone's handset.

Which of the following types of connectors are used to terminate a serial cable for an external modem? ​ RJ-45 ​ RG-6 ​ DB-9 ​ RJ-11

OBJ-3.2: DB-9 connectors are designed to work with the EIA/TIA 232 serial interface standard, which determined the function of all nine pins as a standard so that multiple companies could design them into their products. DB-9 connectors were commonly used for serial peripheral devices like keyboards, mice, joysticks, and data connectivity. Today, the DB9 has mostly been replaced by more modern interfaces such as USB, PS/2, Firewire, etc. However, there are still many legacy devices that use the DB-9 interface for serial communication.

Which of the following types of connectors are used to terminate a CAT 5e network cable? ​ RG-6 ​ RG-59 ​ RJ-45 ​ RJ-11

OBJ-3.2: RJ-45 (Registered Jack 45) refers to a cable termination specification that specifies physical male and female connectors and the pin assignments of data jacks that can be used for networks and VOIP telephone cables. RJ-45 is an 8-pin/8-position plug or jack commonly used to connect computers onto Ethernet-based local area networks (LAN) and consists of two wiring schemes: T568A and T568B.

You are building a new server and want to ensure that its memory can allow the server to continue working even if there is an issue that corrupts data held within the memory modules. Which of the following types of memory should you select for the server? ​ Dual-channel ​ Non-parity ​ ECC ​ Single-channel

OBJ-3.3: Error-correcting code memory (ECC memory) is a type of computer data storage that can detect and correct the most common kinds of internal data corruption. ECC memory is used in most computers where data corruption cannot be tolerated under any circumstances, such as scientific or financial computing and mission-critical servers.

You are attempting to build a new gaming workstation and have just finished installing the motherboard and the processor. You are about to begin installing two memory modules, and notice 4 DIMM sockets on the motherboard labeled 0, 1, 2, and 3. Two of these are colored red, and two are colored blue. Which of the following should you do FIRST? ​ Install 2 DDR4 memory modules into the red slots ​ Install 2 DDR4 memory modules into slots 2 and 3 ​ Install 2 DDR4 memory modules into the blue slots ​ Install 2 DDR4 memory modules into slots 0 and 1 ​ Consult the motherboard's manual

OBJ-3.3: You should consult the motherboard's manual and documentation to determine the best method of installing the memory into the system. The system may support both single-channel and dual-channel memory configurations, depending on how the memory is installed. Based on your specific customer needs, you may wish to install them as single or dual-channel (which may require installing the memory in certain slots).

You are configuring a new server for a client. The client has purchased five 1 TB hard drives and would like the server's storage system to provide redundancy and double fault tolerance. Which of the following configurations would BEST meet the client's requirements? ​ RAID 10 ​ RAID 1 ​ RAID 0 ​ RAID 5

OBJ-3.4: RAID 10 provides for redundancy and double fault tolerance. RAID 10, also known as RAID 1+0, is a RAID configuration that combines disk mirroring and disk striping to protect data. It requires a minimum of four disks and stripes data across mirrored pairs. As long as one disk in each mirrored pair is functional, data can be retrieved. RAID 5 is a redundant array of independent disks configuration that uses disk striping with parity, but it only provides single fault tolerance. RAID 0 utilizes stripping, so it provides no redundancy. RAID 1 utilizes mirroring, which provides for redundancy and single fault tolerance.

Your laptop currently has a 128 GB SSD installed and currently running out of internal storage space. You want to upgrade the workstation with more internal storage to store additional videos, photos, and backups. Still, you don't want to sacrifice data access speed for increased storage. Which of the following is the BEST storage solution to meet your need to store more data while maintaining fast data access speeds? ​ 1 TB SSD 5 TB NAS ​ 3 TB HDD ​ 50 TB SAN

OBJ-3.4: Since you need an internal storage solution, you cannot use a NAS or SAN (since these are both network storage solutions). Instead, you have to select from the SSD or the HDD. In this question, we are primarily worried about the storage's speed being installed and not the storage size. Therefore, we should choose the 1 TB SSD (solid-state drive) over the 3 TB HDD (hard disk drive) due to its faster speeds.

You are attempting to install a full-sized PCIe network interface card into a 1U server, but it is too tall to fit into the machine. Which of the following do you need to install first to install the full-sized PCIe network interface card into the server? ​ Riser card ​ SCSI card ​ AGP card ​ PCIe x16 card

OBJ-3.5: A riser card is a right angle expansion card used to extend a slot for a card in a computer to make room to plug it in. They are most commonly used in low-profile, 1U and 2U rackmount chassis or embedded systems. Riser cards plug into their respective bus (they are available for PCI, PCI-X, AGP, AGP Pro, PCI Express, ISA, or other busses) and rotate the peripheral cards plugged into the riser card so that they are parallel with the motherboard. Riser cards are available in 1-slot passive risers all the way up to 3-slot passive riser cards for 2U rackmounts.

You are building a Gaming PC to support a high-end virtual reality headset. The computer needs a high-end processor, lots of RAM, and a dedicated high-end graphics card. This graphics card will be installed in one of your expansion slots on your motherboard. Which of the following motherboard connections will most likely be used to connect the graphics card? ​ AGP ​ PCIe ​ PCI ​ USB

OBJ-3.5: PCIe (peripheral component interconnect express) is an interface standard for connecting high-speed components. Every desktop PC motherboard has some PCIe slots you can use to add GPUs (video cards or graphics cards), RAID cards, network adapters, Wi-Fi cards, or SSD (solid-state drive) add-on cards. The types of PCIe slots available in your PC will depend on your motherboard and are designated as PCIe x1, x4, x8, and x16. Graphics cards almost exclusively rely on PCIe x16 expansion slots for their connectivity.

You are building a bitcoin mining workstation that will have multiple graphics cards, lots of memory, and an octa-core processor. This computer is expected to generate a lot of heat during its operations. Which of the following solutions would MOST efficiently dissipate all of the heat produced? ​ Passive heat sink ​ Liquid cooling system ​ Replace the power supply with a more efficient model ​ High RPM fans

OBJ-3.5: Since the system described in the question will have multiple graphics cards (GPUs), lots of memory, and an 8-core CPU, it is expected to generate a lot of heat during its crypto mining operation. For any extremely high-powered processing environment that generates a lot of heat (for example, gaming workstations), liquid cooling becomes the MOST efficient way to dissipate the system's heat.

You are working for a logistics company that needs to get a device that will automatically enter information about a package when it is read using light and a lens. Which of the following devices should you install to BEST support this requirement? ​ Digitizer ​ Barcode reader ​ Touch screen ​ Webcam

OBJ-3.6: A barcode reader is a peripheral device connected to a laptop or other computer. A barcode reader (or barcode scanner) is an optical scanner that can read printed barcodes, decode the barcode's data, and send the data to a computer. They consist of a light source, a lens, and a light sensor translating optical impulses into electrical signals.

You want to build a new gaming computer but intend to reuse as many of the parts as possible from your old computer. You have determined that the motherboard and the case will be reused, and you will purchase a new graphics card, sound card, network interface card, and a USB 3.0 expansion card to increase your system's overall speed and performance. You are a bit worried that your old computer's power supply may not be able to support all of these new expansion cards. Which of the following cards is MOST likely to consume the most power during operations and require you to purchase a new power supply to support it? ​ USB 3.0 ​ NIC ​ Graphics card Sound card

OBJ-3.7: The power consumption of today's graphics cards has increased a lot. The top models demand between 110 and 270 watts from the power supply; in fact, a powerful graphics card under full load requires as much power as the rest of the components of a PC system combined. If your old computer didn't have a dedicated graphics card, it is unlikely that the power supply will be powerful enough to support one without replacing the power supply. Most business computers have a 300-watt power supply. Most low-end gaming computers have a power supply of 450 to 500 watts. If you are building a high-end gaming workstation, you may require a power supply with 750 watts to 850 watts to support all processing power, graphics processing, and other expansion cards installed in the system.

You have been asked by Dion Training to build a specialized computer that will be used exclusively for running numerous virtual machines simultaneously for their lab environment. Which of the following should you install to BEST meet the company's needs? (Select TWO) ​ 64 GB of DDR4 ​ 1 TB SSD ​ 8 GB of DDR3 ​ 1 TB HDD ​ Intel i9 with 8-cores ​ Intel i3 with 2-cores

OBJ-3.8: According to CompTIA, the two main things you need to include for a dedicated virtualization workstation are (1) maximum RAM and (2) multiple CPU cores. Based on the options provided, you should pick the 64 GB of DDR4 (maximum RAM) and the Intel i9 with 8-cores (multiple processor cores) for this workstation's configuration.

You work for a bank interested in moving some of its operations to the cloud, but it is worried about security. You recently discovered an organization called CloudBank that was formed by 15 local banks as a way for them to build a secure cloud-based environment that can be accessed by the 15 member banks. Which cloud model BEST describes the cloud created by CloudBank? ​ Hybrid cloud ​ Public cloud ​ Private cloud ​ Community cloud

OBJ-4.1: Community Cloud is another type of cloud computing in which the cloud setup is shared manually among different organizations that belong to the same community or area. A multi-tenant setup is developed using cloud among different organizations belonging to a particular community or group with similar computing concerns. For joint business organizations, ventures, research organizations, and tenders, a community cloud is an appropriate solution. Based on the description of 15 member banks coming together to create the CloudBank organization and its cloud computing environment, a community cloud model is most likely described.

You want to play computer-based video games from anywhere in the world using your laptop or tablet. You heard about a new product called a Shadow PC that is a virtualized Windows 10 Home gaming PC in the cloud. Which of the following best describes this type of service? ​ IaaS ​ PaaS ​ DaaS ​ SaaS

OBJ-4.1: Desktop as a Service (DaaS) provides a full virtualized desktop environment from within a cloud-based service. This is also known as VDI (Virtualized Desktop Infrastructure) and is coming in large enterprise businesses focused on increasing their security and minimizing their operational expenses. Shadow PC (shadow.tech) provides a version of DaaS for home users who want to have a gaming PC without all the upfront costs.

You are working as part of the server team for an online retail store. Due to the upcoming holidays, your boss is worried that the current servers may not handle the increased demand during a big sale. Which of the following cloud computing concepts can quickly allow services to scale upward during busy periods and scale down during slower periods based on the changing user demand? ​ Metered services ​ Rapid elasticity ​ Resource pooling ​ On-demand

OBJ-4.1: In cloud computing, the term rapid elasticity is used to describe the scalable provisioning or the capability to provide scalable cloud computing services. Rapid elasticity is very critical to meet the fluctuating demands of cloud users. The downside of rapid elasticity implementations is that they can cause significant loading of the system due to the high number of resource allocation and deallocation requests.

You want to create a website for your new technical support business. You decide to purchase an on-demand cloud-based server and install Linux, Apache, and WordPress on it to run your website. Which of the following best describes which type of service you have just purchased? ​ SaaS ​ PaaS ​ IaaS ​ DaaS

OBJ-4.1: Infrastructure as a Service (Iaas) is focused on moving your servers and computers into the cloud. If you purchase a server in the cloud and then install and manage the operating system and software, this is IaaS.

Your company has decided to move all of its data into the cloud. Your company is concerned about the privacy of its data due to some recent data breaches that have been in the news. Therefore, they have decided to purchase cloud storage resources that will be dedicated solely for their use. Which of the following types of clouds is your company using? ​ Public ​ Community ​ Private ​ Hybrid

OBJ-4.1: Private cloud refers to a cloud computing model where IT services are provisioned over private IT infrastructure for the dedicated use of a single organization. A private cloud is usually managed via internal resources. The terms private cloud and virtual private cloud (VPC) are often used interchangeably.

Which of the following virtualization concepts refers to a VM's ability to have memory allocated for its use? ​ Resource pooling ​ Virtual application streaming ​ Measured service ​ Synchronization

OBJ-4.1: Resource pooling refers to the concept that allows a virtual environment to allocate memory and processing capacity for a VMs use.

Your company has decided to move all of its data into the cloud. Your company is small and has decided to purchase some on-demand cloud storage resources from a commercial provider (such as Google Drive) as its primary cloud storage solution. Which of the following types of clouds is your company using? ​ Private ​ Community ​ Hybrid ​ Public

OBJ-4.1: The public cloud is defined as computing services offered by third-party providers over the public internet, making them available to anyone who wants to use or purchase them. They may be free or sold on-demand, allowing customers to pay only per usage for the CPU cycles, storage, or bandwidth they consume. Amazon Web Services, Microsoft Azure, and Google Cloud are three popular public cloud platforms.

You have been dispatched to a customer's office to help them fix their printer. You have asked the customer what the issue is, and the customer states, "The printer will not work." You ask a few follow-up questions to understand the situation better and ask if any error messages were displayed. Which of the following steps of the CompTIA troubleshooting methodology best describes the actions you are currently taking? ​ Test the theory to determine the cause ​ Establish a plan of action to resolve the problem and then implement the solution ​ Identify the problem ​ Verify full system functionality and, if applicable, implement preventative measures

OBJ-5.1: Based on the description in the question, it appears you are trying to gathering more information about the problem and its symptoms for you to identify the problem. For the exam, you must be able to list and identify the 6 steps of the CompTIA troubleshooting methodology in order. (1) Identify the problem. (2) Establish a theory of probable cause (question the obvious). (3) Test the theory to determine the cause. (4) Establish a plan of action to resolve the problem and then implement the solution. (5) Verify full system functionality and, if applicable, implement preventative measures. (6) Document findings, actions, and outcomes.

Which of the following is the third step of the CompTIA troubleshooting methodology? ​ Document findings, actions, and outcomes ​ Test the theory to determine the cause ​ Establish a plan of action to resolve the problem and then implement the solution ​ Identify the problem

OBJ-5.1: For the exam, it is important that you are able to list and identify the 6 steps of the CompTIA troubleshooting methodology in order. (1) Identify the problem. (2) Establish a theory of probable cause (question the obvious). (3) Test the theory to determine the cause. (4) Establish a plan of action to resolve the problem and then implement the solution. (5) Verify full system functionality and, if applicable, implement preventative measures. (6) Document findings, actions, and outcomes.

Natalie's computer is having difficulty accessing websites. She reports that she started receiving pop-ups on her screen before this connectivity problem began. You search the computer and find a piece of malware installed, so you remove it. You also do a full virus scan of the computer, ensure her computer has the most up-to-date virus definitions, and is set the anti-virus software to automatically scan the computer every night at 2 am. As you return the computer to Natalie, you verify that she can now successfully access the websites again. What is the NEXT step you should perform according to the CompTIA troubleshooting methodology? ​ Verify functionality ​ Test the theory to determine the cause ​ Establish a theory of probable cause ​ Document findings, actions, and outcomes

OBJ-5.1: There are 6 steps in the CompTIA troubleshooting methodology: (1) Identify the problem, (2) Establish a theory of probable cause, (3) Test the theory to determine the cause, (4) Establish a plan of action to resolve the problem and implement the solution, (5) Verify full system functionality and, if applicable, implement preventive measures, (6) Document findings, actions, and outcomes. Based on the question, you just finished performing step 5, so the NEXT step is step 6.

A user is complaining that they are hearing a whining noise coming from their workstation. You begin to troubleshoot the issue and determine that it is not an issue with the hard drive but is instead caused by the case fan. Which of the following actions would BEST solve this issue? ​ Remove and reseat the case fan ​ Replace the case fan ​ Spray a little bit of WD-40 into the fan to lubricate it ​ Spray the fan with compressed air to remove any dirt, debris, or dust

OBJ-5.2: Most workstations have numerous cooling fans installed, including 1 or 2 case fans, a processor fan, and a power supply cooling fan. If you hear a whining or grinding sound from one of these fans, you should replace the fan with a new one, as this is a symptom/sign of impending failure of the cooling fan. If the fan in the power supply is faulty, replace the ENTIRE power supply. You should never attempt to repair or fix a broken power supply or broken power supply cooling fan due to the power supply's high voltage electrical components.

You are working as a technician for a college. One of the professors has submitted a trouble ticket stating that the projector connected to the workstation in his classroom displays artifacts on the screen. The image is displayed on the screen is bright and appears to be displayed with the right size and in the right position, but the artifacts are obscuring certain portions of the image. What is the FIRST thing you should do to remove the artifacts from being displayed on the screen? ​ Replace the bulb in the projector ​ Increase the contrast on the projector ​ Modify the workstation's video resolution ​ Update the video driver on the workstation

OBJ-5.4: Visual artifacts displayed on the screen are often caused by a projector bulb near its end of life or if the projector bulb is defective. Therefore, you should attempt to replace the bulb in the projector to see if this solves the visual artifact issues described in this question.

The touch screen on your Windows 10 laptop is not working properly. You have been asked to troubleshoot the laptop. What should you check FIRST? ​ Device manager ​ System configuration ​ Digitizer settings ​ Performance monitor

OBJ-5.5: Most laptops have a digitizer and an LCD screen if they are a touch screen device. The digitizer is a piece of glass glued to the LCD's surface and is used to capture your touches and translate them into input for your system. If the touch screen is not working, but the display doesn't look cracked or broken, this is often a sign that the digitizer settings are incorrect or the digitizer is defective.

Which cloud computing concept is BEST described as focusing on replacing the hardware and software required when creating and testing new applications and programs from a customer's environment with cloud-based resources? ​ SECaaS ​ SaaS ​ IaaS ​ PaaS

PaaS OBJ-4.1: Platform as a Service (PaaS) provides the end-user with a development environment without all the hassle of configuring and installing it themselves. If you want to develop a customized or specialized program, PaaS helps reduce the development time and overall costs by providing a ready to use platform.

Your son accidentally knocked his laptop off his desk while it was charging. Your son picks up the laptop and notices that the laptop will no longer turn on. You begin to troubleshoot the problem to identify the cause. You ensure the laptop is connected to the power adapter and that the power adapter is plugged into a power outlet, but the laptop still will not power on. Which of the following components was MOST likely damaged when the laptop was knocked off of the desk? ​ Battery ​ DC jack ​ Hard drive ​ Power adapter

OBJ-5.5: One of the most important parts of any good laptop is the DC power jack. This item allows you to charge your battery and provides you with a steady source of electricity. If it fails, your laptop will lose power and eventually be unable to turn it on. If your battery won't charge or will only charge if the connection is made at a certain angle, this is usually an indication that the DC power jack has failed. The most likely cause is that the DC jack was damage before (possibly from a previous accident). Therefore, the battery never charged properly, and now the DC jack is completely broken and providing no power to the laptop.

You just printed a new sign for your office using thick cardstock paper with your network printer. Unfortunately, when you pick up the cardstock from the laser printer's output tray, the printed image smears across the paper. Attempting to troubleshooting this problem, you decide to print another sign using regular printer paper and determine that the image does not smear when touched on the regular printer paper. Which of the following would be the NEXT step to perform in your troubleshooting efforts? ​ Replace the toner cartridge in the printer ​ Increase the temperature of the fuser element ​ Change the feed rate of the paper ​ Clean the printer's transfer roller

OBJ-5.6: When printing with a laser printer, the paper passes through rollers in the fuser assembly, where temperatures up to 801 F (427 C) and pressure are used to bond the toner to the paper permanently. If you often print with specialty paper (i.e., envelopes, cardstock, & labels), you may want to turn up the fuser temperature on your printer. With thicker paper types, heat does not transfer as easily as it can with standard paper, which means the toner may not bond as well, and the image can be smeared when you touch it.

A retail-boxed CPU usually comes with a ________ fan. ​ Specialized ​ OEM Large ​ Overdrive

OEM Correct Answer: The fans that come with retail-boxed CPUs are known as Original Equipment Manufacturer (OEM) fans. Incorrect Answers: The other answers are aftermarket fans that are designed when using the CPU beyond its normal intent. Manufacturers provide a fan that will support normal usage on a CPU.

Which cloud computing concept allows users to store files on a cloud-based server when necessary and copy that data from the cloud, and put it back on the device when space once again becomes available on the device? ​ Shared resources ​ Synchronization application ​ Resource pooling ​ On-demand

On-demand OBJ-4.1: On-demand is considered one of the five cloud computing concepts. On-demand refers to the fact that a consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with each service provider. In this question, the cloud storage is provisioned and deprovisioned automatically for the user, and thereby it would be categorized as on-demand.

Sam sent a print job to the printer, can see it is the only one in the queue, but it is not printing. What can be done to try to get it to print? ​ Shut off the printer. ​ Open the Print Spooler icon in the system tray, select the print job, and click Delete. ​ Open the Print Spooler icon in the Control Panel, select the print job, and click the Restart button. ​ Open the Print Spooler icon in the system tray, select the print job, and click Restart. ​ Disable the printer.

Open the Print Spooler icon in the system tray, select the print job, and click Restart. The Print Spooler shows up in the System Tray for all actively printing jobs. Open it and restart the print job. Incorrect Answer: There is no delete option available from the Print Spooler. Shutting off/disabling the printer would not help print. There is no Print Spooler icon in the Control Panel.

You are building a Desktop PC for a newly hired receptionist within your company. The computer's motherboard doesn't have a wireless network adapter integrated into it, so you need to purchase an expansion card to provide this functionality. Which of the following motherboard connections will most likely be used to connect the wireless network adapter card? ​ eSATA ​ AGP ​ PCIe x16 ​ PCIe x1

PCIe x1 OBJ-3.5: PCIe (peripheral component interconnect express) is an interface standard for connecting high-speed components. Every desktop PC motherboard has several PCIe slots you can use to add GPUs (video cards or graphics cards), RAID cards, network adapters, Wi-Fi cards, or SSD (solid-state drive) add-on cards. The types of PCIe slots available in your PC will depend on your motherboard and are designated as PCIe x1, x4, x8, and x16. Network adapters and Wi-Fi network cards almost exclusively rely on PCIe x1 expansion slots or a USB connection for their connectivity.

You want to create a new mobile application and develop it in the cloud. You just signed up for a cloud-based service provider's offering to allow you to develop it using their programming environment. Which of the following best describes which type of service you have just purchased? ​ PaaS ​ IaaS ​ SaaS ​ DaaS

PaaS OBJ-4.1: Platform as a Service (PaaS) provides the end-user with a development environment without all the hassle of configuring and installing it themselves. If you want to develop a customized or specialized program, PaaS helps reduce the development time and overall costs by providing a ready to use platform.

You just bought a new car and want to use the built-in stereo to make and receive calls on your smartphone. Which of the following should you perform to connect your smartphone to the car stereo? ​ Enabling NFC ​ Enabling Wi-Fi ​ Pairing the device ​ Installing the device drivers

Pairing the device OBJ-1.6: By pairing the device, you will establish the Bluetooth connection between your smartphone and the car stereo. Bluetooth is commonly used to create a wireless connection between a smartphone and a car stereo for making/receiving phone calls, streaming music from the smartphone to the stereo, and other functions supported by the stereo.

Which of the following symptoms is most indicative of a bad sensor on a laser printer? ​ Paper jam error but no jammed paper ​ Blank pages printed without errors ​ Spontaneous printer reboots ​ Paper is picked up in twos or threes

Paper jam error but no jammed paper Correct Answer: A paper jam error with no jammed paper is a clear sign of a faulty sensor. Incorrect Answer: Paper picked up in twos and threes is indicative of too much moisture in the paper. Blank pages are most likely due to nothing more than low toner. Spontaneous printer reboots, just like with PCs, points to a bad power supply.

The video editor at Dion Training has submitted a trouble ticket stating her editing workstation makes a loud clicking noise whenever she is editing videos for an upcoming course. You initially thought the system fans were causing the noise. You have replaced the fans, but the noise continues to be heard when applications are loaded or the videos are being edited. Which of the following actions should you perform NEXT? ​ Perform a System Restore ​ Scan the system for viruses ​ Perform a full backup of the hard disk ​ Replace the hard disk

Perform a full backup of the hard disk OBJ-5.3: The next thing you should do is to perform a full backup of the hard drive. A clicking noise is commonly associated with a hard drive that is about to fail. Therefore, you should first conduct a full backup of the hard drive and then replace the faulty drive with a new hard drive to prevent any data loss from occurring.

You have been asked to install a network cable in the crawl space between the ceiling in your office and the roof. You need to choose the right type of cable to ensure you do not violate the local fire codes. Which of the following cable types should you choose? ​ Plenum ​ Fiber ​ Coaxial ​ Shielded

Plenum OBJ-3.1: Plenum-rated cable has special insulation that has low smoke and low flame characteristics. Plenum cable is mandated to be installed in any air handling space. For example, most large office buildings use the space between the ceiling and the roof to return air to the AC unit. This qualifies this area as a plenum ceiling, and all the cables that go through that ceiling must be plenum rated. It is important to check your local building codes to see if you need to use plenum cable. These plenum cables cost more because the insulation material must meet the standards for plenum cables while also meeting the standards for category 5e.

What is the correct boot sequence for a PC? ​ CPU, POST, power good, boot loader, operating system ​ Power good, boot loader, CPU, POST, operating system ​ Power good, CPU, POST, boot loader, operating system POST, power good, CPU, boot loader, operating system

Power good, CPU, POST, boot loader, operating system Correct: The correct boot sequence: Power good, CPU, POST, boot loader, operating system. Incorrect: All three other options are not the correct boot sequence.

A company needs complete ownership of its data, but wants the flexibility of the cloud. They have found a third-party vendor to help manage storage and maintain their ownership. Which of the following infrastructure types are they implementing? ​ Hybrid ​ Public ​ Community ​ Private

Private Private is correct. A private cloud allows a security minded company to build an internal Iaas network in an onsite data center. They can contract a third party to maintain or host it, however they keep ownership and ability to collaborate the data. Incorrect Answers: Hybrid is incorrect as it allows a mix of public cloud services with private cloud services. It does not give complete ownership. Community is incorrect. This allows for several organizations that share a common concern to share the cloud solution. Public is incorrect.This cloud does not allow for complete ownership of the data, and is available to the general public.

A technician installed a second hard drive in a computer. Upon restart, a message appears stating, "Primary drive 0 not found. Press F1 to continue." Which of the following should the technician check first? ​ That NTLDR and boot.ini are not missing ​ If computer can boot into Safe Mode ​ If the BIOS boot settings are correct Proper drive installation (e.g. cables/jumpers)

Proper drive installation (e.g. cables/jumpers) Correct Answer: Error messages after a drive installation is a good sign that you might have installed the drive improperly. Incorrect Answer: A newly-installed drive wouldn't have NTLDR or boot.ini on it. A computer that can't find its hard drive won't be able to boot into Safe Mode. If everything's installed properly, then you'd check the boot settings in BIOS. But not first.

You have been asked to develop a solution for one of your customers. The customer is a software development company, and they need to test a wide variety of operating systems to test the software applications their company is developing internally. The company doesn't want to buy many computers to install all of these operating systems for testing. Which of the following solutions would BEST meet the company's requirements? ​ Purchase a high-end computer that has a lot of CPU cores and RAM, install a hypervisor, and configure a virtual machine for each operating system that will be used to test the applications being developed Purchase one computer, install an operating system on it, create an image of the system, then reformat it, install the next operating system, create another image, and reimage the machine each time you need to test a different application ​ Purchase multiple inexpensive workstations and install one operating system that will be used to test the applications being developed on each workstation ​ Purchase multiple workstations, install a VM on each one, then install one operating system that will be used to test the applications being developed in each VM

Purchase a high-end computer that has a lot of CPU cores and RAM, install a hypervisor, and configure a virtual machine for each operating system that will be used to test the applications being developed OBJ-4.2: Since the company's main goal was to minimize the amount of hardware required, the BEST solution is to purchase a high-end computer that has a lot of CPU cores and RAM, install a hypervisor, and configure a virtual machine for each operating system that will be used to test the applications being developed. This allows a single machine to run multiple operating systems for testing with the least amount of hardware.

Tammy has an iOS tablet. She has filled up her device to maximum capacity with games, music, and pictures. She wants some additional storage. Which would work BEST in helping her get more storage? ​ Install an external USB hard drive ​ Install additional flash memory ​ Restore the device to default state ​ Purchase a new tablet

Purchase a new tablet Correct Answer: Because this is an iOS device, it works in the closed-source Apple environment. No upgrades for you—buy a new one with more space! Incorrect Answers: You can't install an external USB hard drive with an iOS-based device. As stated earlier, it's closed source.You also can't install additional flash memory either, sorry! Restoring it to the defaults certainly would free up some space, but it would also trash her existing files.That would not be the BEST situation for Tammy.

The large multi-function printer in your office is shared between 12 people. Unfortunately, it has stopped working, and the technicians have determined it must be replaced. A new printer has been ordered, but it will be 2 weeks until it arrives. The only other printer available in your office is the manager's printer, but it is connected via USB to their workstation. One of the technicians would like to share the manager's printer with the other 12 employees for the next 2 weeks as a temporary workaround. Unfortunately, there are no spare wired network jacks available in the office to connect the printer to the network directly, but there is a wireless access point nearby. Which of the following is the BEST way for the technician to allow the 12 employees to access the manager's printer? ​ Purchase a portable wireless print server and connect the printer to it using USB ​ Share the printer directly from the manager's computer by creating a share and giving the other employee's access rights to the share ​ Configure a new printer on each user's workstation and point it to the manager's IP address ​ Provide a USB thumb drive to each employee so that they can transfer their files to the manager's computer for direct printing

Purchase a portable wireless print server and connect the printer to it using USB OBJ-3.10: The BEST solution would be to use a wireless print server to connect the printer to it using USB. This wireless print server can then receive the print jobs directly from all of the network users. It is not recommended that the technician create a share on the manager's computer or set the printer configuration to the manager's IP address since all print jobs would fail anytime the manager shut down or restarted their computer. Using a USB drive to transfer the files to the manager's computer each time someone wanted to print is also not a good solution since this is difficult for the users and will be disrupting the manager's work every time someone needed to print something.

Your child has broken the RJ-45 port of your laptop by sticking clay into it, and there are no wireless networks available in your office building. The manufacturer of your laptop said they could not replace the port for at least a week. Which of the following would be an appropriate workaround to get your laptop back onto the wired network in your office the quickest? ​ Purchase and use a USB to RJ-45 adapter ​ Disable airplane mode and use the integrated 802.11ac adapter ​ Replace the motherboard since it contains an integrated RJ-45 port ​ Enable NIC teaming to increase your bandwidth

Purchase and use a USB to RJ-45 adapter OBJ-1.1: Since the RJ-45 port on the laptop is most likely an integrated port on the motherboard, you will have to wait for the manufacturer to replace the motherboard for you. To get back onto the wired network at the office the quickest, you should purchase an external (USB) wired network adapter. These usually are small devices that will allow you to plug a wired network cable with an RJ-45 connector into the external adapter and connect it to the laptop using a USB port. This works just like the integrated RJ-45 adapter but can be installed in just a few seconds.

You have been asked by Dion Training to build a network-attached storage (NAS) device that will be used exclusively as a file server for the company's internal network. Which of the following should you install to BEST meet the company's needs? (Select TWO) ​ 1 TB HDD (5400 RPM) ​ 1 TB SSD ​ RAID 0 ​ FastEthernet NIC ​ RAID 5 ​ Gigabit NIC

RAID 5 ​ Gigabit NIC OBJ-3.8: According to CompTIA, the five main things you need to include for network-attached storage (NAS) devices are (1) media streaming capabilities, (2) file-sharing capabilities, (3) Gigabit NIC, (4) RAID array, and (5) hard drives. Based on the options provided, you should pick the RAID 5 and Gigabit NIC for this device's configuration. The RAID 5 will provide both speed and redundancy to the NAS device, whereas the RAID 0 would provide only speed without redundancy. The Gigabit NIC will provide 1 Gbps (1000 Mbps) of network speed instead of the 100 Mbps provided by a FastEthernet NIC. For a NAS device, you should use multiple hard disk drives in a RAID, not a single 1 TB HDD or 1 TB SSD. For a NAS, it is preferred to choose hard drives over solid-state drives because of the increased storage capacity and lower cost.

Dual Channel is a feature unique to: ​ RAM ​ Network connections ​ Video ​ Audio

RAM Correct Answer: DDR/DDR2/DDR3 RAM can be used with special Dual Channel motherboards. Incorrect Answers: The other answers do not have Dual Channel anything.

What type of connector is used to terminate a coaxial cable? ​ RJ-11 ​ RG-59 ​ RJ-45 ​ RS-232

RG-59 OBJ-3.2: Coaxial cables are normally terminated using an RG-59 connector but can also use an RG-6 connector. An RJ-45 connector is usually used to terminate an Ethernet cable. An RJ-11 is usually used to terminate a phone line. A DB-9 is usually used to terminate an RS-232 connection on a serial cable.

A printer usually plugs into which of the following ports? ​ RG-6 ​ Mini-DIN ​ USB ​ DB-9

RG-6 A printer usually plugs into either a DB-25 or USB port. (Although some can use FireWire, it's not as common.) Incorrect Answers: Mini-DIN is for mice and keyboards. DB-9 is another name for the serial port, and while there were printers that could use the DB-9, it was much more common to use the DB-25 or USB ports.

A client is attempting to power on their computer, but it keeps booting to the incorrect hard drive. Which of the following actions should you perform to attempt to fix this problem? ​ Reconfigure the boot order within Windows ​ Unplug any external hard disks ​ Reconfigure the boot order within the BIOS/UEFI ​ Press F8 repeatedly during the boot process to enter the boot menu

Reconfigure the boot order within the BIOS/UEFI OBJ-5.2: If the system still fails to boot up from the correct drive, then go into the BIOS/UEFI setup program and check the existing boot order settings. If they are in the wrong order, reconfigure them to ensure the usual boot device is listed first in the list and then restart the computer.

A technician needs to replace a touch screen on a laptop that supports Windows 8.1. Which of the following is the FIRST step the technician should perform? ​ Document and label each component upon removal. ​ Recalibrating the LCD screen. ​ Refer to the manufacturer's documentation. ​ Removal the laptop bezel.

Refer to the manufacturer's documentation. Laptop manufacturers all have different procedures for screen removal. It is always best to review the documentation from the manufacturer to ensure you don't have any problems with the repair. Incorrect Answers: Removal will be necessary, but first you must know how to remove the bezel properly. Documentation and labeling is good, but first you must know how to remove the bezel properly. The LCD will not need any tuning until it is installed.

Your friend just gave you his old laptop. Whenever you turn on the laptop, though, a black screen appears and asks you to enter an administrative password before the computer attempts to boot up. Unfortunately, your friend never gave you the password for this laptop. Which of the following actions should you take to resolve this issue and get past this password screen? ​ Remove the CMOS battery, wait a few minutes, reinsert the battery, then power on the laptop ​ Press and hold the power button down for a few minutes, then attempt to power on the laptop ​ Disconnect the hard drive from the motherboard for a few minutes, reconnect it, and then power on the laptop ​ Remove the laptop's battery, wait a few minutes, reinsert the battery, and then power on the laptop

Remove the CMOS battery, wait a few minutes, reinsert the battery, then power on the laptop OBJ-5.2: This black screen asking for the administrative password appears to be a BIOS password required to be entered before the laptop being allowed to boot from the hard disk. Your best option is to clear the CMOS forcibly to remove the BIOS password from a workstation or laptop. To clear the CMOS, you must remove the CMOS battery from your computer, wait a few minutes, reinsert the CMOS battery, and then attempt to power on the computer again. This will cause the information stored in the CMOS (for example, BIOS settings and passwords) to be erased and restored to its default configuration.

You are working as a laptop repair technician. You just received a laptop that was reported to have a glass of water spilled on it. You want to examine the components in the laptop to begin troubleshooting it. What are the first steps you should take as part of your troubleshooting process? ​ Watch a YouTube video for tutorials on how to fix this model of laptop ​ Submerge the laptop in a large bowl of rice to fully dry out the inner components ​ Consult your fellow coworkers for suggestions and advice ​ Remove the external casing of the laptop and document the screw locations

Remove the external casing of the laptop and document the screw locations OBJ-5.5: When you are taking apart a laptop, it is important to keep track of each of the screws and the location that they were removed from. Many of the screws may appear to be the same height or width, but they may actually be different. One easy way to keep track of these parts is to create a grid on a sheet of printer paper and place the screws on this makeshift diagram. While the other options may be useful, the question asks you what you should do first to examine the laptop components. To perform that examination, you must remove the external casing and its screws.

The Chief Financial Officer (CFO) needs your help. His laptop has stopped working, and it will not power on. During your troubleshooting efforts, you have determined the motherboard has failed and needs to be replaced. Unfortunately, it will be a few days before a new motherboard arrives from your supplier. In the meantime, the CFO needs to get some spreadsheets containing the proposed budgets for a new project from the laptop to his desktop in his office. Which of the following actions should you perform to give the CFO access to the files he needs? ​ Remove the hard drive from the laptop, place it in an external USB enclosure, and connect it as a secondary drive to the CFOs desktop computer in order to copy the spreadsheets ​ Remove the hard drive from the laptop and replace it with a new SSD ​ Attempt to run the Windows System Recovery on the laptop in order to restore functionality ​ Remove the hard drive from the laptop and then install it as the primary hard drive in the CFO's desktop computer

Remove the hard drive from the laptop, place it in an external USB enclosure, and connect it as a secondary drive to the CFOs desktop computer in order to copy the spreadsheets ​ OBJ-1.1: By removing the hard drive from the laptop and placing it into an external USB enclosure, you have effectively turned the drive into an external USB hard drive that can be connected to any computer as a secondary device. This will allow the technician to connect the drive to the CFO's desktop workstation and then copy any files or folders that the CFO needs from the old laptop's hard drive (in the external enclosure) to the primary hard drive (in the desktop computer) so that the CFO can get back to work again.

Which of the following devices could be used to extend transmissions of a signal over longer distances by receiving and retransmitting a given signal? ​ Firewall ​ Repeater ​ Gateway ​ Switch

Repeater OBJ-2.2: A repeater is an electronic device that receives a signal and retransmits it. Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction. Repeaters may be wired or wireless, and they rebroadcast whatever signal is received through their transmitter.

You are working on a laptop with an LCD screen that has dead pixels. What is the best way to get rid of them? ​ Replace the back bezel ​ Replace the LCD panel ​ Replace the backlight ​ Replace the inverter

Replace the LCD panel Correct Answer: Those pixels are defective and the LCD is failing to reproduce light levels correctly. The only way to fix this is to replace the LCD panel itself. Incorrect Answers: You should replace the inverter when you see nothing but a faint image on a dark screen. Replace the backlight(s) when the LCD screen starts to go dim or eventually just goes black. Replacing the back bezel might make your latop look brand new again, but it won't fix a dead pixel.

You upgrade your network to 1000 Mbps from 100 Mbps. You install a new 1000-Mbps network adapter into your Windows system. You check the device manager and see no errors or warning. You configure the TCP/IP settings to be as they were for the previous network adapter. Upon restarting the computer, you cannot access the network. You ping your IP address locally and receive the error message, "Request timed out." You then ping 127.0.0.1 and receive the same error message. What do you do? ​ Replace the NIC. ​ Replace the network cabling. ​ Set the network adapter to run at 100 Mbps only. ​ Replace the network card drivers.

Replace the NIC. You tried to ping 127.0.0.1, which is the loopback address, as well as your local IP address and received the same error messages both times. This would indicate a faulty NIC in your workstation. Incorrect Answers: Nothing was changed about the cables, so that would not be the problem. Typically driver problems result in an error message during installation, so it's not the drivers. Also, you checked the device manager and everything was OK. Modern NICs can auto-negotitiate for speed, so setting it to run at 100 Mbps wouldn't really do much.

A user has not received any new e-mails on his smartphone in the last two days. The user is able to access the Internet without any problems. Which of the following should the user do first? ​ Resynchronize the smart phone ​ Reconfigure the smartphone's e-mail account ​ Update the operating system ​ Restart the smartphone

Restart the smartphone "Have you tried turning it off and on again?" Sometimes restarting a device can solve unexpected problems. Incorrect Answers: If the problem persists after a restart, you might try to reset the e-mail settings. Syncing the phone probably won't solve the problem. An OS update would be the last resort, especially since phone OS updates are pretty rare, so your phone probably doesn't have one available.

A client states that their computer is experiencing slow performance when reading or writing to the hard drive. You have already verified that it is not a system (software) performance issue, and the system is not overheating. Which of the following would be the BEST action to take in attempting to fix this problem? ​ Run the disk repair tool ​ Backup the hard drive ​ Upgrade the memory of the system ​ Clean the cooling fans of the system

Run the disk repair tool OBJ-5.3: Slow performance can be a symptom of overheating or other problems. Since we eliminated overheating as the cause, the issue is most likely caused by a file system problem. To fix this problem, you should try running the disk repair tool or run the Disk Defragmenter tool (for non-SSD devices) to optimize the file system and read/write performance.

You are installing some new hard drives in a legacy Novell NetWare server in a closed IPX network. The hard drive has a 4-bit set of jumpers that must be configured to represent the device's ID number (0-15) in the storage device chain. Which of the following types of connectors would you use for data transfer with these hard drives? ​ SATA ​ SCSI ​ PATA ​ USB

SCSI OBJ-3.2: Don't be mistaken by all of the extra information provided in the question about the legacy (old) server in a closed IPX network. Focus on what the question asks: what type of hard drive uses an ID number between 0-15 that must be set. The only types of hard drives or devices that use an ID number are narrow SCSI (0-7) and wide SCSI (0-15). Therefore, the correct answer is SCSI. The Small Computer System Interface (SCSI) is a set of parallel interface standards developed by the American National Standards Institute (ANSI) for attaching printers, disk drives, scanners, and other peripherals to computers. SCSI is supported by all major operating systems and was heavily used in older servers in the late 90s and early 2000s until SATA replaced it in most applications.

Which type of memory module has 200 pins? ​ SIMM ​ RIMM ​ DIMM ​ SO-DIMM

SO-DIMM Correct Answer: DDR and DDR2 SO-DIMMs have 200 pins. Incorrect Answers: SIMMs have 30 or 72 pins. DIMMs have 168, 184, or 240 pins. RIMMs have 184 pins.

Your laptop was recently upgraded to Windows 10 but is now running more slowly due to the increased memory requirements. You have decided to install some additional RAM to speed up the laptop. Which of the following should you install? ​ DDR4 ​ SODIMM ​ DIMM ​ GDDR5

SODIMM OBJ-1.1: Laptops and integrated PCs usually use SODIMM memory due to the memory module's smaller footprint. SODIMM is the Small Outline Dual Inline Memory Module, and it can be purchased in various types and sizes to fit any laptop.

You are troubleshooting a memory issue on a customer's laptop and have determined that the memory module needs to be replaced. You walk into the storage room to select a memory module to use as a replacement. Which of the following choices would be the MOST LIKELY choice for you to select for use on the laptop? ​ DDR4 ​ SODIMM ​ Single Channel ​ ECC

SODIMM OBJ-3.3: Small Outline Dual Inline Memory Modules (SODIMM) is a small form factor used in memory modules. SODIMM is used in nearly every laptop available. For the exam, if you see a question asking about memory and laptops, the answer will most likely be SODIMM. SODIMM is also heavily used in Micro PCs (like Mac Minis) and all-in-one computers due to their smaller size.

Which cloud computing concept is BEST described as focusing on the replacement of applications and programs on a customer's workstation with cloud-based resources? ​ PaaS ​ DBaaS ​ IaaS ​ SaaS

SaaS OBJ-4.1: Software as a Service (SaaS) is used to provide web applications to end-users. This can be a calendar, scheduling, invoicing, word processor, database, or other programs. For example, Google Docs and Officer 365 are both word processing SaaS solutions.

Your company's file server is using a RAID 5 configuration. You just received an alert from the server that states that "RAID is degraded" and that the "Local Disk 0, Physical Disk 3 has failed". Which of the following is the BEST way to fix this error? ​ Format logical disk 0, manually configure a new RAID using the remaining good drives from the RAID 5, and confirm that the RAID is no longer reporting itself as degraded ​ Schedule an authorized downtime period, replace physical disk 3, rebuild the array, and confirm that the RAID is no longer reporting itself as degraded Replace physical disk 3 immediately, rebuild the array, and confirm that the RAID is no longer reporting itself as degraded ​ Reconfigure the RAID 5 to a RAID 0 in order to avoid any downtime, then rebuild the array during the next authorized maintenance period, and confirm that the RAID is no longer reporting itself as degraded

Schedule an authorized downtime period, replace physical disk 3, rebuild the array, and confirm that the RAID is no longer reporting itself as degraded OBJ-5.3: Since a RAID 5 has some built-in redundancy, it will continue to operate while in this degraded state without any additional redundancy since one of the drives has failed. It is best to schedule an authorized downtime period, replace the failed drive, rebuild the array, and confirm that the RAID is no longer reporting itself as degraded. During the rebuilding of the array, the system may perform extremely slowly, and users may experience a loss of service, which is why scheduling some downtime is necessary. Formatting the logical drive or changing a RAID 5 to a RAID 0 will cause data loss, and therefore they are not the correct answers.

A technician needs to configure her neighbor's iPad. The neighbor wants to access his work e-mail. The technician requires some information from her neighbor's work IT department. Which of the following information does the technician need? ​ Server and gateway ​ IP address and domain ​ IP address and DNS ​ Server and domain

Server and domain The technician needs to know the neighbor's work e-mail server and work domain name. Incorrect Answers: You don't need to know IP address info, domain info, or DNS info to set this up.

Janelle walks up to a computer and starts it up. After POST, she gets an "inaccessible boot drive" error. Which of the following would be the most obvious issue to initially consider? ​ The computer's hard drive has failed. ​ The CMOS boot order is incorrect. ​ Someone left a flash drive in the computer. ​ Someone cleared CMOS.

Someone left a flash drive in the computer. Someone left a flash drive in the computer. This is a classic example of "Keep It Simple." There could be an argument for ANY of these answers, but CompTIA wants you to look for the easy answer first. People are notorious for leaving USB drives, and other removable media in computers. If the boot order looks for one of these drives, the computer will try to boot from it. Granted, on more modern PCs you usually get a "Press a key to boot from removable drive" type of error, but not all computers do this. Incorrect Answers: Any of the incorrect answers are plausible, but the question asked what to check first.

You have been asked by Dion Training to build a specialized computer that will be used exclusively for video editing. Which of the following should you install to BEST meet the company's needs? (Select THREE) ​ Specialized video card ​ Wi-Fi Adapter ​ 4 TB HDD (10,000 PRM) ​ 1 TB HDD (5400 RPM) ​ Docking Station ​ Dual monitors

Specialized video card 4 TB HDD (10,000 PRM) Dual monitors OBJ-3.8: According to CompTIA, the three main things you need to include for an audio/video editing workstation are (1) specialized audio and video card, (2) a large, fast hard drive, and (3) dual monitors. Based on the options provided, you should pick the video card, the 4 TB hard disk drive running at 10,000 RPMs, and the dual monitors for this workstation's configuration.

In general, how should a person install a stick of RAM on a desktop? ​ Straight down into the slot ​ At a 45 degree angle ​ One side into the retaining clips, then the other ​ Through the ZIF socket

Straight down into the slot All current desktop RAM gets inserted straight down into the slot. You must apply even pressure along the entire stick. Incorrect Answers: Installing the RAM at a 45 degree angle might break or damage the stick of RAM. Installing the RAM from one end to the other might break or damage the stick of RAM. The ZIF socket is for CPUs, not RAM.

Margarita has seen plenty of System setup screens over the years, but when she presses DEL at boot on her new laptop, she sees two password options: "Setup" and "System." What are the more common terms for "Setup" and "System," respectively? ​ Administrator and User ​ User and Supervisor ​ User and Root ​ Supervisor and User

Supervisor and User Some computer manufacturers use the terms "Setup" and "System" rather than the classic terms "Supervisor" and "User," but the options still perform the same functions. Incorrect Answers: Administrator and user passwords are used with Windows. User and Root passwords are more commonly associated with Linux systems. User and Supervisor is just a made-up answer for your benefit.

Any network using hubs can be substantially improved simply by replacing the hubs with: ​ Routers ​ Bridges ​ CAT6 ​ Switches

Switches Switches work at layer 2 of the OSI networking model—a standard in network communication that you will learn more about in Network+. By existing at layer 2, switches remember communication between nodes based on MAC addresses, creating direct connections instead of a single shared connection for the entire network in the case of hubs. Incorrect Answer: A bridge connects multiple network segments, but only has one incoming port and one outgoing port. A router is a different kind of networking device. Where switches connect computer together, routers connect networks together based on IP addresses rather than MAC addresses. CAT6 is Category 6 network cabling. This particular type of network cabling can go at speeds up to 10Gbps.

What protocol does the largest network in the world use? ​ HTTP ​ IPX/SPX ​ TCP/IP ​ AppleTalk

TCP/IP Correct Answer: The world's largest network, the Internet, uses TCP/IP. Incorrect Answers: AppleTalk is a proprietary set of protocols developed by Apple for networking computers.This protocol is no longer used. TCP/IP is most popularly implemented via HTTP, but they are not the same. IPX/SPX are protocols for Novell's NetWare network operating system. This protocol is no longer used.

Your primary hard drive starts to make a clicking noise. There are some very important files on the drive. How do you make sure the data can be saved? ​ Run CHKDSK on it. ​ Run anti-virus software on it. ​ Run Disk Defragmenter on it. ​ Take it to a professional data recovery company.

Take it to a professional data recovery company. Correct Answer: The only people who have the equipment and knowledge to open hard drives for data retrieval are professional data recovery centers. Incorrect Answer: CHKDSK will only scan for errors. Anti-virus software will only search for and attempt to stop viruses. Disk Defragmenter defragments drives.

A client claims that their computer keeps rebooting itself without warning. Which of the following is the BEST action you should take to investigate and troubleshoot this issue? ​ Reinstall the operating system ​ Replace the power supply ​ Replace the cooling fan ​ Test the power supply

Test the power supply OBJ-5.2: A computer that keeps rebooting itself is a symptom of a faulty power supply or a computer that is overheating. If the power supply is faulty, the computer will reboot itself. If the issue is caused by an overheating issue (such as a cooling fan failure), the computer will usually reboot itself after running for 15-20 minutes (once enough heat is built-up). Therefore, you should test the power supply first to determine if that is the root cause of the issue, and then replace the power supply, if required.

Your computer keeps losing track of time and the date in the system. Which of the following is MOST likely causing this issue? ​ The CMOS battery is dead and needs to be replaced ​ The memory is corrupted ​ The motherboard's device drivers need to be updated ​ The power supply is faulty

The CMOS battery is dead and needs to be replaced OBJ-5.2: Most motherboards (especially older ones) have a small coin-sized battery installed on them to power the CMOS RAM when the computer is powered down. This is where the BIOS settings and date/time are saved when power is removed from a workstation. If a computer continually loses track of the day/time, this is a classic sign that the CMOS battery is dead and needs to be replaced. Please note that some newer motherboards have replaced the need for a CMOS battery by replacing it with an area of nonvolatile memory used instead to store the BIOS settings and the date/time.

When an instruction is sent to the CPU in a binary pattern, how does the CPU know what instruction the pattern means? ​ External data bus ​ Register ​ Translator ​ Code book

The CPU has an internal code book that identifies each instruction pattern. A register is a memory location inside a CPU. The external data bus is the set of wires that carry data and instructions between the CPU and RAM. In this context, translator is a made-up term.

A user has just dropped off his laptop reporting that the screen is very dim and it's difficult to make out the icons on the desktop. When you plug in an external monitor to the system, it brings up the desktop perfectly. Which of the following needs to be replaced? ​ The LCD inverter The VGA card ​ The LCD panel ​ The external monitor

The LCD inverter Correct Answer: The LCD inverter is likely not supplying voltage to the backlights (CCFLs) and will need to be replaced. Incorrect Answers: The external monitor was there to help us diagnose this malfunctioning laptop. And it did its job pefectly. While the LCD panel may seem like a good answer, it's probably not the BEST answer. We can still see the icons—they are just very dim and hard to make out. It's more likely a problem with the backlights or the inverters that power the backlights. The VGA card is working just fine, if it wasn't, we would have had nothing on the external monitor we connected.

Ellen's laptop has a built-in 802.11n-capable wireless NIC. The wireless NIC worked perfectly yesterday when she loaned it to her nerdy friend Tom. Today, she cannot access the Internet via her wireless NIC. The NIC is not visible in Network Connections nor is it visible in Device Manager. What should she assume first? ​ The NIC is disabled in Device Manager. ​ The NIC's hardware switch is set to off. ​ The NIC is disabled in CMOS. ​ The NIC is bad.

The NIC is disabled in CMOS. Correct Answer: The NIC is disabled in CMOS. Granted, this is not a common problem, but of the options listed, it's the only one that would absolutely prevent the NIC from showing up in Device Manager. Incorrect Answer: In most cases, a hardware failure will not prevent a NIC from showing up in Device Manager. While there's no hard and fast rule here, a device with a hardware switch will still show up in both Device Manager and, in the majority of cases, in Network Connections as well. Disabled devices are still visible in Device Manager.

A user called the help desk to complain about an issue with their laptop's keyboard. Every time they type a word like "help" or "none," it is displaying as something cryptic like "he3p" or "n6ne". Which of the following is the MOST likely cause of this issue with the laptop keyboard? ​ The keyboard has some crumbs or debris that has fallen under the keys ​ The keyboard is faulty and needs to be replaced ​ The NumLock has been enabled for the laptop The keyboard driver needs to be updated

The NumLock has been enabled for the laptop OBJ-5.5: Most keyboards have a numeric side (numbers only) and an alphanumeric side (numbers and letters and symbols). However, to minimize space usage, companies create some keyboards with the alphanumeric side only. This is quite common in laptops that insist on minimizing space for the sake of portability, as seen on mini-laptops and notebooks. Usually, the alphanumeric side is split into function keys (F1 to F12), followed by numeric keys (0-9) and then alphabetic keys (A-Z). To fix this, the fastest way to do this is to turn off NumLock using your laptop keyboard. If you hit the NumLock key, it will turn off. A light beside the key or on the laptop's top will go off to confirm that the NumLock is disabled.

You have been asked to troubleshoot a digital projector in the home theater in your neighbor's basement. Your neighbor attempted to replace the projector's bulb, but after running for a few minutes, a message appears on the screen, and the projector turns itself off again. Based on these symptoms, what are the MOST likely causes of the projector continually turning off after just a few minutes of usage with a new bulb? (Select TWO) ​ The bulb's life counter needs to be reset ​ Incorrect video resolution setting ​ The video driver on the media player needs to be updated ​ A higher lumen bulb must be installed ​ The brightness needs to be increased ​ The cooling fan needs to be cleaned or replaced

The bulb's life counter needs to be reset The cooling fan needs to be cleaned or replaced OBJ-5.4: Most projectors keep track of the life of a bulb/lamp using a life counter. If you forget to reset the life counter after replacing the bulb/lamp, the projector can often turn itself off since it believes the bulb/lamp still needs to be replaced. Another cause of a project turning itself off is when it overheats. This can be caused by an overly dirty cooling fan or a failed cooling fan. To solve this issue, simply clean or replace the cooling fan to prevent the projector from overheating.

Bill returns from vacation, plugs in his laptop to charge, and preps for dinner. The dog bumps the table with the laptop and the laptop hits the floor. Bill checks for any obvious damage, such as a cracked screen, but sees nothing. He leaves the laptop on the charger over night and goes to work the next day. His laptop won't come up at all, even when it's plugged in. What's most likely the problem? ​ The fall damaged the power brick. ​ The fall damaged the battery. ​ The fall damaged the DC jack. The fall damaged the hard drive.

The fall damaged the DC jack. Correct Answer: The fall damaged the DC jack, rendering both the charging process and the plugged in failure. Incorrect Answers: The fall damaged the battery. This would have resulted in a very spectacular fire. The fall damaged the power brick. The laptop fell, not the power brick. The fall damaged the hard drive. In such a scenario, the computer would still have turned on, but would have been unable to access the OS.

ou are traveling to Thailand on a business trip. Your laptop's touchscreen display is visibly flickering when plugged into the power outlet at a local coffee shop. You take your laptop to your hotel room, and you notice it doesn't flicker when plugged in there. Which of the following is the MOST likely cause of this issue? ​ The coffee shop was experiencing power fluctuations that led to the flickering of the display ​ The battery of the laptop is failing to charge ​ The digitizer of the laptop is faulty ​ The inverter of the laptop is faulty

The coffee shop was experiencing power fluctuations that led to the flickering of the display OBJ-5.4: Since the only change between the flickering and non-flickering was the change in location and the power source, it is likely the cause of the issue. In some areas of the world, power is less stable and reliable than in more industrialized countries like the United States, Canada, England, and Japan. Some developing nations have more power fluctuations. Flicker is a visible change in a lamp's brightness due to rapid fluctuations in the power supply voltage. The voltage drop is generated over the grid's source impedance by the changing load current of equipment or facility. These fluctuations in time generate the visible flicker notices by the end-user.

Mike's newly configured computer (using manual IP settings) can't access a Web site by its fully-qualified domain name (FQDN), but he can access it by the Web site's IP address. Everyone else on the network can access the site by the FQDN. Which of the following is the MOST likely problem? ​ The computer's DNS Client service is disabled. ​ The computer does not have DNS permissions enabled on the default gateway. ​ The computer's DNS settings are incorrect. The computer's DNS server is down.

The computer's DNS settings are incorrect. Your DNS settings are incorrect. Given that most systems use DHCP, it's rare to have a problem like this, but if you typed in invalid manual DNS settings into your NIC's Properties, this can happen. Incorrect Answers: If you were to turn off the DNS Client service on your computer, you would get this problem. However, there is a much smaller chance that this service would be disabled than that someone had entered an invalid DNS service IP address. In a single network, everyone USUALLY uses the same DNS server, so if the DNS server is down for you, it's down for everyone else. Granted, you might have a different DNS server, so this answer is valid, but not as valid as entering an invalid DNS server IP address. Routers don't have an item in their Access Control Lists called "DNS permissions". You COULD block DNS from getting through your router by blocking port 53 (DNS), but then no one could get DNS access. Most routers have the ability to block a port number for a single IP or MAC address, but, again, it's simply too unlikely.

A user describes a loud clicking noise coming from their system, and are unable to boot their computer to the operating system. The technician determines the loud clicking noise to be from the hard drive. What is MOST likely creating the noise? ​ Your system attempting to connect to the drive. ​ Bad spindle motor bearings. ​ Solid state read/write head scratching the platter surface. ​ The motion of the read/write head armature parallel to the platter.

The motion of the read/write head armature parallel to the platter. Correct Answer: Traditional hard drives use platters that spin and use read/write heads on actuator arms to read the top and bottom of the platters. The arms are controlled by a servo motor. All these moving metal parts can wear down over time and break. Incorrect Answers: Your system uses electronic signal and no audible sound occurs. Solid state drives do not use moving parts. The hard drive does not have spindle motor bearings.

You are attempting to troubleshoot a computer for a user. When you attempt to turn on the computer by pressing the power button, the computer turns on, and the fan spins normally. There is no output displayed on the screen from the PCIe x16 video card. You turn off the computer, remove the processor and the memory, and attempt to power on the computer again. During the boot-up sequence, you do not hear any POST beep codes, but the fans still spin normally. Which of the following is the MOST likely cause of his issue? ​ The motherboard has failed and needs to be replaced ​ The CMOS battery needs to be replaced ​ The power supply's voltage switch is set to 240V but the power outlet is providing 110V ​ The power supply wattage is too low for the components in the computer

The power supply wattage is too low for the components in the computer OBJ-5.2: If your computer won't boot, but fans spin continuously, it indicates a problem with the power supply, the motherboard, or overheating could be occurring. When the power supply to your computer fails, it won't start or power-up, but the fans spin (as described in this question). One of the reasons your computer won't boot but the fans spin could be a bad processor or memory chip. To isolate this as a reason, you should remove the processor and memory and then attempt to boot up the computer and listen for a POST beep code. In this case, we could eliminate the motherboard, processor, and memory as the issue's source since no POST beep codes were heard. Based on the symptoms and actions performed, it appears that the power supply is not providing enough wattage to all the components of the computer, which is why the fans are spinning (they use low wattage) while the rest of the system fails to boot.

In laser printer technology, what occurs during the writing stage of the image formation? ​ The print image is transferred to the paper. ​ The print image is written to the drum. ​ A uniform negative charge is applied to the drum. ​ An alternating charge is applied to drum.

The print image is written to the drum. Correct Answer: The laser strikes the drum in the areas that are to be printed, giving those areas a less negative charge. This makes these areas relatively positive, so that they attract the toner. Incorrect Answers: The alternating charge answer is nonsense. A uniform negative charge is applied by the primary corona, but not during the writing stage. The image is transferred to the paper in the transfer stage.

Martha's inkjet printer's output has the bottom of every letter missing in text and strange horizontal lines evenly spaced in her images. What part of the inkjet should she check for problems? ​ The printhead ​ The paper take-up rollers ​ The photosensitive drum ​ The printer's resolution

The printhead Correct Answer: Missing lines of horizontal print always points to a problem with the printhead. Incorrect Answers: The paper is being printed on, so it's not the take-up rollers. Inkjet printers do not have photosensitive drums. The printer resolution is not at fault, either.

Several users from the Sales & Marketing department have called the service desk complaining that they cannot access the internet from their workstations. You arrive at the salesperson's workstation, open the command prompt, and enter the command IPCONFIG. The command returns an IPv4 address of 10.1.2.3, a subnet mask of 255.255.255.0, and a default gateway of 10.1.2.1. You attempt to run the command "ping 8.8.8.8" but get the message "Request timed out" displays four times on the screen. You attempt to ping the IP of the salesperson's workstation sitting next to this workstation and receive four successful replies from the command. You then try to ping the gateway (10.1.2.1) but again receive the message of "Request timed out" on your screen. Which of the following is MOST likely the problem with the salespeople's internet connectivity? ​ This is a DNS issue since you cannot access the internet ​ The salespeople are getting APIPA addresses from the DHCP server ​ The router that connects the Sales & Marketing department to the rest of the company is not functioning properly ​ The wireless access point in the Sales & Marketing department is not working properly

The router that connects the Sales & Marketing department to the rest of the company is not functioning properly ​ OBJ-5.7: Since you can ping other workstations within the Sales & Marketing department, but you cannot successfully ping the gateway device (the router), this indicates that the router is non-functioning at this time. If the router is not functioning, the workstations will be unable to access any devices or servers outside of the Sales & Marketing department since the router is necessary to connect them to those devices.

The on-screen display of a monitor indicates the proper video source is selected, but the image will not display. Which of the following issues are the MOST likely reasons? (Select TWO). ​ The backlighting of the monitor is faulty ​ The source cable is disconnected ​ No device is sending source video ​ The monitor's contrast is set too high ​ The monitor's brightness is set too low

The source cable is disconnected ​ No device is sending source video Correct Answer: Always review the basic connections of your system when setting it up. Connectivity is the easiest thing that can cause a problem. Incorrect Answers: A low brightness setting will not cause the image to not display. Bad backlighting may cause a bad image, but will not cause the image to not display. Improper contrast settings will not cause the image to not display.

Jason's cellphone company allows him to use his smartphone as a wireless hotspot with his laptop when traveling. Jason notices that if he runs a speed test from his smartphone, the cellular connection is 8761 kbps. If he runs the same speed test connection from his laptop connected to his cellphone over its wireless hotspot, the speed drops to 243 kbps. Which of the following is the MOST likely cause for the drop in the speed test results? ​ The laptop is out of range of the smartphone's hotspot ​ The wireless hotspot feature is throttling the cellular connection speed ​ The smartphone's RFID signal is low ​ The SSID for the wireless hotspot is not being broadcast

The wireless hotspot feature is throttling the cellular connection speed OBJ-5.7: Some cellular companies provide free mobile hotspots as part of their plans, but they will throttle the speeds provided by the hotspot. For example, T-Mobile in the United States can provide extremely fast cellular data connections from your smartphone, but they will throttle your hotspot connectivity to 256 kbps unless you purchase an additional high-speed option for your hotspot. The other options are all incorrect since any of those issues would cause the laptop to have no connectivity instead of the slow connectivity provided in the question.

You are troubleshooting an issue with multiple workstations that are having network connectivity issues. The network also has two servers connected to the network, but they do not have any connectivity issues. You look at the network configuration of the two servers and notice they are using static IP addresses. Based on what you know so far, what is most likely the cause of the workstation's network connectivity issue? ​ The network's router is currently down ​ The internet connection for the network is down ​ The workstations are most likely configured to use dynamically assigned IP addresses and the DHCP is not working properly The wireless network adapter for each workstation was accidentally disabled

The workstations are most likely configured to use dynamically assigned IP addresses and the DHCP is not working properly OBJ-5.7: Based on the symptoms provided, it appears that the servers are using static IP addresses, and the workstations are using dynamically assigned ones. If the DHCP is not functioning properly for the network, any workstations that rely on a dynamically assigned IP address will have connectivity problems. This issue would not affect statically assigned machines, like the servers.

A user on your network complains that his mouse is acting erratically. The pointer moves in the direction the user points, but it jumps and skips. What is the most probable cause? (Select two.) ​ The wrong mouse drivers are installed. ​ Static electricity. ​ Button overcharge. ​ The connection is loose or the mouse is dirty.

The wrong mouse drivers are installed. The connection is loose or the mouse is dirty. Correct Answers: The connection is loose or the mouse is dirty. Dirty mice are notorious for the jumping effect caused by dirt and dust wrapped around their rollers. The connection is loose or the mouse is dirty. A loose connection or the wrong mouse drivers can also cause the mouse to act erratically. Incorrect Answers: Button overcharge. No such thing. Static electricity. Static is not a known symptom of a jumpy mouse.

You have been asked to select the type of workstations to install in your company's new corporate offices. The workstations will only remotely connect to a centralized server to run all of the required applications. Which of the following is the BEST type of workstation to install? ​ Thin client HTPC ​ Thick client ​ CAD workstation

Thin client OBJ-3.9: A thin client is a lightweight computer that has been optimized for establishing a remote connection with a server-based computing environment. The server does most of the work, including launching software programs, performing calculations, and storing data. Based on the question's description, a thin client is the BEST choice for workstations in the new corporate offices.

Which of the following cables is NOT used for networking computers? ​ USB cable ​ Plenum UTP cable ​ UTP cable ​ STP cable

USB cable Correct Answer: USB cables are not used to network computers together. They are used to connect a computer to a peripheral such as a mouse or keyboard. Note: There are USB cables that exist in the world that have a small electronic circuit box in the middle of the cable that will allow you to connect two computers together. But that is a super special instance and the answer that I listed in the choices didn't say anything about it being that type of cable. Incorrect Answers: Shielded Twisted Pair (STP) and Unshielded Twisted Pair (UTP) are the some of the most common ways of connecting computers together in a network. Plenum UTP cable is a type of network cabling that is suitable for being installed in air ducts or plenums.

You have just installed a new hard disk drive into your computer, but the motherboard does not recognize it within the BIOS/UEFI. You have verified the drive is properly connected to the motherboard and the power supply with the correct cables, but it still is not recognized. Which of the following actions would BEST solve this problem? ​ Format the new hard drive as FAT-32 ​ Update the firmware of the motherboard ​ Format the new hard drive as NTFS ​ Configure a RAID in the BIOS/UEFI

Update the firmware of the motherboard OBJ-5.3: This type of error (drive not recognized) is usually the result of the motherboard's firmware not supporting a newer hard drive model or the cables not being properly connected. Since we already established that the cables were properly connected, we have to consider the firmware as the issue. To troubleshoot this issue, you should restart the computer and enter the BIOS/UEFI configuration. If the BIOS/UEFI does not recognize the hard drive, then the motherboard's firmware will need to be updated. If the BIOS/UEFI cannot detect the hard drive, then the operating system cannot detect the drive either (since it relies on the underlying BIOS/UEFI to make the connection). This means that you cannot format the hard drive or configure a RAID.

You are connecting a laptop to a brand new digital high definition TV. Unfortunately, the laptop is a little outdated and only has an analog display output. Which of the following adapters could you use to convert the signal from analog to digital for use with the new television? ​ S-Video to RCA ​ HDMI to VGA ​ VGA to DVI-D ​ DVD-D to HDMI

VGA to DVI-D OBJ-3.1: Since this question asks you to select the converter that can convert a signal from analog to digital, you need to consider which of the connectors are analog and digital. S-Video, RCA, and VGA are all analog. HDMI and DVI-D are both digital. Therefore, the correct answer is VGA (analog) to DVI-D (Digital).

Which of the following is the virtualization technology supported by most modern Intel processors? ​ AMD-V ​ VT ​ HT ​ Intel-V

VT OBJ-4.2: To use virtualization and have virtual machines running on a single workstation, you need to have a CPU specifically designed to support virtualization. For Intel processors, they must support VT or Virtualization Technology. If you are using an AMD processor, it should support AMD-V (AMD's virtualization technology).

Tom, a salesman, is trying to print a 3-page report to the network printer located in the Sales department's office space. He walks over to the printer but doesn't see the pages in the printer's output tray. He checks the on-screen display of the printer, but he doesn't see any errors listed. Tom tries a few more times, but he gets the same results. Frustrated, Tom selects the network printer for the Customer Service department and sends his print job there. He walks over to their offices and finds his 3-page report sitting in that printer's output tray. Tom asks you to help him solve this printing problem. What action should you take FIRST to help solve Tom's problem? ​ Ask one of Tom's co-workers to attempt to print something to the Sales department's printer to verify it is working properly ​ Stop and restart the PC's print spooler service using your administrator account ​ Login to the network's print server, stop and restart all of the shared printer queues, and then try to reprint the document ​ Verify that Tom has been sending the document to the correct network printer's queue

Verify that Tom has been sending the document to the correct network printer's queue OBJ-5.6: The first thing you should do is verify that this problem is not caused by user error. To do this, you should verify which network printer queue Tom had been sending the document to the first few times. You may wish to ask a coworker to print to the Sales department's printer, but that would be your second step AFTER verifying the user was printing to that print queue properly first. Since the print job was successful once Tom switched to another printer, the PC's print spooler worked properly, so you don't need to restart it. It would be best if you did not restart all of the shared printer queues since this would affect all company employees and is not necessary to solve this issue.

You are troubleshooting an issue on a client's computer and need to make some computer changes to test your theory of probable cause. What should you do BEFORE you make any changes to the computer to test your theory? ​ Create a system restore point in the operating system ​ Verify that a recent backup of all of the client's important files has been created ​ Order a spare power supply in case you need to replace it ​ Provide the customer with an invoice for the work

Verify that a recent backup of all of the client's important files has been created ​ OBJ-5.1: You should always ensure that a recent backup of all of the client's important and critical files has been created before making any changes to the computer. After all, it is easy to replace hardware if you break the computer, but the client's personal files may be irreplaceable. For example, if you accidentally delete or remove the customer's pictures of their baby, you can't just take new baby pictures to replace them!

A military contracting firm is worried about proprietary corporate information being removed from the company's network. To combat this, they have created strict rules regarding what types of information can leave their office building. You have been asked to fix a workstation for the company and have been brought on-site to troubleshoot the issue. You have properly followed the troubleshooting steps and have created a plan of action to fix the workstation. Unfortunately, your solution will require that the workstation be taken back to your off-site repair shop to solve the workstation's problems fully. What is the NEXT thing you should do to fix this workstation? ​ Ask the employee who usually works on the workstation if you can take it to your repair shop ​ Verify the contracting firm's corporate policies regarding removal of a workstation for repairs ​ Format the hard drive of the workstation in order to delete all proprietary data before taking the workstation to your repair shop ​ Remove the internal hard disk drive and then take the workstation with you to your repair shop to fix it

Verify the contracting firm's corporate policies regarding removal of a workstation for repairs ​ OBJ-5.1: You should always verify the company's corporate policies you are working with for any specialized procedures or requirements involved when you are asked to work on a machine containing proprietary information. Based on their corporate policies, they may require you to remove the hard drive, delete the information on the hard drive, or follow other technical or administrative procedures before you can remove the workstation from their facility. It is not simply enough to ask the employee who normally works on that computer since they may not be authorized to make that decision (based on their corporate policies).

Which of the following resources is used by virtual machines to communicate with other virtual machines on the same network but prevents them from communicating with resources on the internet? ​ DNS ​ Virtual internal network ​ Network address translation ​ Virtual external network

Virtual internal network OBJ-4.2: Most virtual machines running on a workstation will have their own virtual internal network to communicate within the virtual environment while preventing them from communicating with the outside world. You may also configure a shared network address for the virtual machine to have the same exact IP address as the physical host that it is running on. This usually relies on network address translation to communicate from the virtual environment (inside) to the physical world (outside/internet).

You are trying to install Hyper-V on a new laptop, but you keep receiving an error during installation that the software cannot be installed. Which of the following characteristics of the laptop's processor should you investigate as the MOST likely issue? ​ Hyper-threading (HT) technology ​ Virtualization (VT) support ​ Number of cores available ​ Cache size

Virtualization (VT) support OBJ-4.2: CPU Virtualization is a hardware feature found in all current AMD & Intel CPUs that allows a single processor to act as if it was multiple individual CPUs. This allows an operating system to more effectively & efficiently utilize the computer's CPU power to run faster. This is enabled or disabled on supported processors within your system's BIOS.

A technician wants to simplify users' wireless configuration in a new remote office. Which of the following must be configured on the access point to allow wireless clients to automatically negotiate secure authentication with the SOHO access point? A. Enable QoS B. Enable SSID Broadcast C. Enable WPS D. Enable MAC filtering

Wi-Fi Protected Setup (WPS) is a feature supplied with many routers. It is designed to make the process of connecting to a secure wireless network from a computer or other device easier.

Your company has recently purchased a new wireless printer and has asked you to configure it in the office. You have installed the necessary printer drivers on your workstation and have plugged the printer into the power outlet. You just configured the printer to connect to the guest wireless network. Next, you try to print a test page, but nothing prints out. Which of the following is the most likely cause for the printer not printing the test page? ​ You didn't configure the printer to use the Internet Printing Protocol (IPP) ​ You connected the printer to the guest wireless network instead of the corporate wireless network ​ You forgot to configure your workstation as a print server ​ You didn't enable DHCP on your workstation

You connected the printer to the guest wireless network instead of the corporate wireless network ​ OBJ-5.6: Most corporate wireless networks are configured as two separate networks: one for the corporate wireless network traffic and another for any guests that might connect to the wireless network while visiting your offices. These two wireless networks are isolated from each other, so if you connect the printer to the guest wireless network, the workstations are connected to the corporate wireless network. The workstations will be unable to reach the printer and print out any documents or test pages.

You have been asked to replace the processor in a workstation. You remove the old processor, install the new processor into the motherboard slot, attach the heat sink, and attempt to power on the workstation. The workstation boots up, but after a minute or two, the computer shuts itself down. Which of the following steps did you MOST likely forget to perform? ​ You forgot to apply thermal paste to the processor during the installation You forgot to close the ZIF socket ​ You forgot to replace the RAM with parity memory ​ You forgot to reattach the power cables to the case fans

You forgot to apply thermal paste to the processor during the installation OBJ-3.5: When you install a processor, you need to ensure you install it in the processor socket on the motherboard, apply thermal paste to the backside of the processor, attach the heat sink, attach the processor fan to the heat sink, and then connect the power cable to the processor fan. If you neglect to apply the thermal paste between the processor and the heat sink, the heat sink cannot effectively dissipate all the heat from the processor, and the computer will shut itself down to protect the processor from becoming overheated.

Maria returns from a wonderful vacation, but finds her portable computer can log into the LAN at the office, but not to external sites. Betsy the tech tries a few options, such as accessing a Web site by name and by IP address. The former fails, but the latter hits the site. What command should Betsy run to resolve this problem? ​ ipconfig /flushdns ​ ipconfig /setclassid6 ​ ipconfig /all ​ ipconfig

ipconfig /flushdns Maria's DNS resolver cache has a problem; running ipconfig /flushdns will most likely fix the issue. Incorrect Answers: Running ipconfig by itself will provide information, but not resolve any problems. Running ipconfig /all will provide a lot of information, but not resolve any problems. Running ipconfig /setclassid6 will modify the IPv6 DHCP class ID, but won't flush the DNS.

You have been asked to fix a laptop with a screen image that is being displayed upside down. What is the BEST method to fix this issue? ​ Replace the integrated video card ​ Update the display drivers ​ Replace the LCD display ​ Change the orientation of the screen

​Change the orientation of the screen OBJ-1.3: Windows offers a beneficial function for viewing documents or play pranks on your friends. With a simple key-combination, you can rotate your screen in any direction - flip it upside-down, or lay it on the side. To change your laptop screen orientation, hold down the Ctrl and Alt keys on your keyboard, then press the up/down/left/right arrow key. You can also change your screen orientation in the Windows display settings.

A salesman has been traveling to different businesses all day to give a sales presentation. Each time, he was starts up his laptop and logs into Windows to show his PowerPoint presentation to the customer. During his second appointment, his laptop lost power and shut itself off abruptly. He arrives at his third appointment and plugs in his laptop to recharge it. When he powers on his laptop, he sees a very low-resolution version of his normal desktop. He attempts to change the resolution from 800 x 600 to 1920 x 1080 (his normal resolution) but cannot find it in the Display Settings options inside of Windows. Which of the following could be the cause of this error? ​ Corrupted memory module ​ Corrupted motherboard firmware ​ Graphics card failure ​ Corrupted or missing display driver

​Corrupted or missing display driver Explanation OBJ-5.4: If your display is shown in low resolution (640 x 480 or 800 x 600), but the computer isn't in Safe Mode, it is usually a driver issue. For some reason, the laptop's display driver has become corrupted between the salesman's last appointment and this appointment. Without a valid display driver, Windows will revert to the "Generic VGA" driver, limiting the system's highest resolution to 1024 x 768. To solve this issue, you should reinstall a new display driver for the laptop's appropriate graphics card.

A consultant is looking to consolidate six company servers into one physical system. Which of the following requirements is most important on the new setup to ensure stable functionality of the virtual environment? ​ Client hardware requirements ​ Server software security requirements ​ Network resources ​ Server hardware resources

​Server hardware resources orrect Answer: Using a powerful system as the virtualization server will ensure that the virtual environments all run smoothly and without problems. Incorrect Answers: Client machines need relatively little hardware resources; that's one of the benefits of virtualization servers. The server should undoubtedly be secure, but that's less important initially than making sure the hardware is up to snuff. No one's going to hack a server that's always crashing, after all. Having a fast enough network to host the virtual environments is also important, but, again, a super fast network won't help an underpowered server.