sigh comptia

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? A. Resynchronize the smart phone B. Reconfigure the smartphone's e-mail account C. Update the operating system D.-- Restart the smartphone

Correct Answer: "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.

What type of 802.11 network has a maximum throughput of 11 Mbps? A. G B. N C.-- B D. A

Correct Answer: 802.11 B networks have a maximum throughput of 11 Mbps. Incorrect Answers: 802.11 A has a throughput of 54 Mbps. 802.11 G's throughput is also 54 Mbps. 802.11 N's maximum throughput is 600 Mbps.

What 802.11 wireless standard has the lowest throughput? A. G B.-- B C. A D. N

Correct Answer: 802.11 b has a throughput of only 11 Mbps. Incorrect Answers: 802.11 a and g have throughput of 54 Mbps. 802.11 n has a throughput of up to 600 Mbps.

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

Correct Answer: 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

A virtual machine is a _______ OS running within a ________ OS. A. hypervisor, host B. host, guest C.-- guest, host D. guest, hypervisor

Correct Answer: A VM is a guest operating system that runs within a host operating system. Incorrect Answers: The hypervisor manages the guest OS and the interface between the guest OS and the shared physical hardware of the host OS.

A network consisting of numerous geographically dispersed networks that cover a large physical distance is referred to as a: A. MAN B. LAN C. WLAN D.-- WAN

Correct Answer: A WAN, or wide area network, is a type of network that covers a large area, spanning more than one city. Incorrect Answers: WLAN stands for wireless local area network. These do not cover a large physical distance. A LAN is a small, local network. A MAN is a metropolitan area network, or a network covering an entire city. These are larger than LANs, but smaller than WANs.

A customer wants to transfer data from the DVR to a DVD. What hardware will be required to enable the workstation to collect the data to archive to the DVD? A. USB 3.0 external storage B. Thunderbolt C.-- Capture card D. Optical drive

Correct Answer: A capture card acts as a receiver for data that is input to a system. It enables you to record the video that is playing on your system from an external video source. They are commonly used to to collect the video signals in gaming or other common video devices such as a DVD or camcorder. Incorrect Answers: An optical drive can read and write data, but cannot collect the DVR data. A USB external storage drive can read and write data, but cannot collect the DVR data. Thunderbolt technology is a high speed connection for display devices, but it does not collect data.

When walking past a server with a RAID 5 array, a technician hears a loud clicking noise. Which of the following could most likely occur? A. BSOD B. RAID array failure C.-- Hard drive failure D. OS not found on boot

Correct Answer: A clicking hard drive means a dying hard drive. Get that hard drive out of the raid and replaced as quick as possible! Incorrect Answers: None of the other answers cause clicking.

What tool could a technician use to test a NIC that is not receiving an IP address? A. Cable tester B. Toner probe C.-- Loopback plugs D. ESD mat

Correct Answer: A loopback plug is used to perform a loopback test, which checks a NIC's connectivity. Incorrect Answers: An ESD mat is used to prevent static discharge when working on electronics. A cable tester tests the status of networking cables. Toner probes are used to find the port on a switch or patch panel that a particular cable goes to.

Which is not needed to install a virtual machine? A. Guest OS .iso file B. Virtual disk C. Hypervisor D.-- Optical drive

Correct Answer: A physical optical drive isn't necessary; the hypervisor can create a virtual optical drive from the guest OS .iso file. Incorrect Answers: The installation needs a hypervisor, a guest OS .iso file and a virtual disk.

Which primary PC component is an output device? A. Web camera B. Keyboard C. Microphone D.-- Printer

Correct Answer: A printer is an output device. Incorrect Answers: Microphones, keyboards and web cameras are input devices.

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? A. The beep indicates a problem with his new CPU. B. The beep indicates that he blew dust up into the power supply. C.-- The beep indicates a RAM problem. D. The beep indicates that his hard drive is dying.

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.

What device performs network address translation (NAT)? A. Switch B.-- Router C. Modem D. Hub

Correct Answer: A router can implement NAT to share a single public IP address among several local PCs. Incorrect Answers: A switch just addresses packets based on MAC addresses. It doesn't do NAT. A hub broadcasts packets across a LAN. No NAT here! A modem is used for dial-up Internet.

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. A single-processor motherboard with eight threaded cores B. A dual-processor motherboard with ten overclocked cores each C.-- A single-processor motherboard with eight hyperthreaded cores D. A dual-processor motherboard with six overclocked cores each

Correct Answer: 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.

Which of the following is the best tool to verify the cable is plugged into the correct port on the patch panel? A.-- Toner probe B. Cable tester C. Punch down D. Cable certifier

Correct Answer: A toner probe is used with a tone generator to determine which cable is plugged into which port. Incorrect Answers: A cable certifier is used to certify that a cable run meets the specifications that it is supposed to. A punch down tool is used to attach cables into a patch panel. A cable tester tests cables for continuity and resistance, making sure that there aren't any broken wires.

A laser printer keeps getting a MEM OVERFLOW error. Which of the following would most likely fix the problem while still maintaining quality? A. Replace the printer's RAM. B.-- Add more RAM to the printer. C. Reduce the print resolution. D. Reduce the RET.

Correct Answer: Add more RAM to the printer. Incorrect Answers: Reduce the RET. This might help, but it'll reduce the quality of your printouts and isn't the best solution available. Replace the printer's RAM. There's nothing wrong with the RAM; there is just not enough of it. Reduce the print resolution. This might help, but it's not the best solution since now you are reducing the quality of your printouts.

Quincy's laser printer keeps giving "Out of memory" errors. He needs very high quality prints. What should he do? A.-- Add more memory B. Reduce the resolution C. Print in black and white D. Increase the size of the printer's page file.

Correct Answer: Adding more printer memory will quickly fix this problem. Incorrect Answers: Reducing the resolution or printing in black and white might solve the memory issue, but would compromise the print quality. Printers don't have page files.

What is the simplest way to change the brightness on a laptop's monitor? A.-- Fn key B. In the BIOS C. In the video display drivers D. In the Device Manager of the operating system

Correct Answer: Almost every laptop has a function key for controlling brightness. Incorrect Answers: Neither Device Manager nor BIOS contain settings for screen brightness. You might be able to change brightness in the display drivers, but that's not very simple.

What is always the last step in the diagnostic/troubleshooting process? A.-- Document activates and outcomes B. Call your supervisor C. Talking to the User D. Backup the System

Correct Answer: Always document your work. Incorrect Answers: If any of the other answers were necessary, you would have already done them.

Android smartphones are different from other smartphone devices in that: A. Android apps are more secure that other manufacturer devices B.-- Android devices use open source operating systems. C. Android devices operate on a proprietary operating system. D. Android devices are able to use other manufacturer apps.

Correct Answer: Andriod uses open source operating system. Open source refers to a program in which the source code is available to the general public for use and modification from its original design free of charge. Since open source can be modified, it is not proprietary. Incorrect Answers: The operating system does not determine the security on an application. Manufacturers write the same application for different types of smartphone systems, but apps can only be used for the operating system for which it was written. Andriod uses open source operating system, it is not proprietary.

Alex has just purchased a new 802.11n Wi-Fi router for his home. He powers it up and configures it. He then proceeds to connect his current 802.11g devices, as well as his brand new laptop. Even though the laptop has a built-in 802.11n antenna, he is still not noticing any speed increase. Which of the following is the most likely cause? A. The laptop needs a dedicated access point B.-- The router is broadcasting a mixed mode C. The laptop is not close enough to the router D. The router should be configured to "G-Only"

Correct Answer: By default, many Wi-Fi routers broadcast their signal in mixed mode. By broadcasting in mixed mode, the access point portion of your Wi-Fi router will allow any devices that use 802.11b, 802.11g, or 802.11n to connect to the network. The big catch is that by doing this, your network throughput will drop down to the speed of the slowest device. Ouch! Incorrect Answers: While the distance between the laptop and the wireless router is definitely a factor, there is nothing in the scenario that states the new laptop's position in relation to the router. We are forced to assume that since he hasn't noticed any speed increases, Alex has already tried positioning himself in many different places. If the router is set to "G-Only," then Alex will only get 54 Mbps. The router should definitely not be set to that mode of operation. The laptop does need a dedicated access point. Luckily, Alex bought one. It says that in the first line of this particular scenario.

Joe is considering getting into the CAD game. What should he look for in a computer if he's going to be doing computer-aided drafting and 3D modelling? A.-- Powerful processor, high-end graphics card, and maximum RAM B. File streaming, printer sharing, and a RAID array C. Surround sound audio, compact form factor, HDMI output D. Processor and RAM that meets minimum Windows requirements

Correct Answer: CAD and 3D modelling require a high-end, multi-core CPU, a beefy graphics card, and as much RAM as you can fit into the motherboard. Incorrect Answers: The other answers won't help you much for a CAD computer.

Janice's onsite call is almost funny - the laser printer is spewing pages like crazy. The customer begs "Janice, stop this 4300 page printer job!" Which of the following is the most elegant solution? A. Reset the printer. B. Unplug the printer. C.-- Clear the print spooler. D. Turn off the printer.

Correct Answer: Clearing the print spooler in Windows will not only stop the print job, but will also tell the printer to clear its own buffer. If this doesn't work, then go ahead and get inelegant! Incorrect Answers: The other answers are simply less elegant solutions. Try clearing the print spooler first.

Which of the following display types relies on CCFL backlights to display an image on the screen? A. CRT B. Plasma C.-- LCD D. LED

Correct Answer: Cold cathode fluorescent lamps (CCFLs) are commonly used in LCD technology to help illuminate your screen. If the CCFLs were to go out, the image would be so faint as to render the screen unusable. Incorrect Answers: LED displayes use LEDs for their backlight! This makes them cheaper and thinner than ever before. Cathode Ray Tubes (CRTs) don't use any backlights. Instead, they use an electron gun that fires at a phospher coated screen to illuminate the image. Plasma doesn't use backlights, either. In plasma displays, the plasma itself makes sure everything is illuminated.

The images output from your new color laser printer seem to be a little too blue. What can you do to fix this? A. Make sure all color toners are in the correct position in the printer. B. Clean the printhead. C. Clean the primary corona. D.-- Calibrate the printer.

Correct Answer: Color calibration is an important step to getting your printer to generate accurate color. Incorrect Answers: None of the other answers would help with color issues.

Which type of RAM modules have 240 pins? (Choose two) A.-- DDR2 B. L1 Cache C. SDRAM D.-- DDR3 E. SO-DIMMs F. DDR4

Correct Answer: DDR2 and DDR3 RAM modules have 240 pins. Incorrect Answers: SDRAM (DDR) has 184 pins DDR4 has 260 pins SO-DIMMs have 200 pins L1 Cache does not have pins

DDR4 RAM modules have how many pins? A. 204 B. 168 C.-- 288 D. 240

Correct Answer: DDR4 RAM modules have 288 pins. Incorrect Answers: 168, 288, and 204 pins are valid factors, however they are not for DDR4.

What type of service is DHCP? A.-- Addressing B. Remote access C. E-mail D. Name resolution

Correct Answer: DHCP is the service that enables a centralized server to distribute IP addresses for a network. Incorrect Answers: The other three answers have nothing to do with DHCP and are incorrect.

What does DNS do? A. Provides separate control and data connections between network resources B. Provides remote connectivity to resources on the network C. Provides automated addressing to resources on the network D.-- Provides mapping of user friendly names to network resources

Correct Answer: DNS provides easy-to-remember names for computers on a network so that users don't have to remember IP addresses. Incorrect Answers: The other answers don't describe DNS.

Which should you try first if your device can't connect to a remembered public wireless network? A. Connect to the SOHO router with a cable. B.-- Delete the profile and try to connect again. C. Increase the transmit power on the SOHO router. D. Reset the SOHO router to factory defaults.

Correct Answer: Delete the profile and try to make a new connection. Incorrect Answer: If you're in a coffee shop or hotel, it's not likely possible for you to increase the power, reset the router, or connect to a wired port.

Joanna is setting up a SOHO wireless network and doesn't want her neighbors to be able to discover the network. How can she make this happen? A. Configure DMZ settings B. Configure a proxy server address C. Enable WEP encryption D.-- Disable SSID broadcast

Correct Answer: Disabling the SSID broadcast will make it so that the network doesn't show up when the neighbors look for wireless networks. Incorrect Answers: A proxy server won't help here. WEP encryption might make it difficult for neighbors to join the network, but it won't keep them from discovering it. A demilitarized zone is used as a security measure in some large networks.

When connecting a Bluetooth device to a mobile device, which of the following best describes the purpose of discovery mode? A. Allows two Bluetooth devices to connect to each other without a mobile device B. Disconnects all devices and connects to the closest powered on device C.-- Allows a peripheral to be contacted by the mobile device D. Instructs the phone to seek out all nearby devices and connect to them

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 technician is tasked with setting up a new employee in a company with webmail on a tablet, phone, and laptop. Which of the following items can be synced to all three devices via webmail? (Select THREE). A. Social media accounts B.-- Contacts C.-- Calendar D. Bookmarks E.-- Documents F. Programs

Correct Answer: Documents, Calendar and Contacts can be synced through webmail. Although most data can be synced, there are limitations to items that can be synced by webmail. Incorrect Answers: Programs cannot be synced by webmail. Bookmarks can be synced with devices, not by webmail. Social media accounts are ususally web based and do not require a sync.

What network service provides dynamic IP addresses? A. HTTP B. DNS C. Router D.-- DHCP

Correct Answer: Dynamic Host Configuration Protocol (DHCP) allows a "pool" of IP addresses to be "leased" as they are needed. Since they IP address is not permanent, it can change (dynamic). Incorrect Answers: HTTP is the protocol used to transfer Web pages on the Internet. DNS is the naming service used to translate domain names to IP addresses. A router is used to separate broadcast domains. It will connect you to other networks. Sometimes they have a DHCP server built into them, but that is not a requirement.

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? A. NAT B.-- DHCP C. Port forwarding D. QoS

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.

What does ECC DRAM provide that non-ECC DRAM does not? A. ECC DRAM has a much lower response time than other forms of DRAM. B.-- ECC DRAM enables error checking and correcting. C. ECC DRAM runs at much lower temperatures than other forms of DRAM. D. ECC DRAM enables synchronous data transfers.

Correct Answer: ECC DRAM enables error checking and correcting. Incorrect Answers: The other answers are made up and not true.

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? A. That NTLDR and boot.ini are not missing B. If computer can boot into Safe Mode C.-- Proper drive installation (e.g. cables/jumpers) D. If the BIOS boot settings are correct

Correct Answer: Error messages after a drive installation is a good sign that you might have installed the drive improperly. Incorrect Answers: 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.

Which is not a wireless technology used in IoT? A. Z-wave B. Zigbee C.-- Ethernet D. 802.11

Correct Answer: Ethernet is not wireless (and most IoT devices don't have an Ethernet port). Incorrect Answers: 802.11/Wi-Fi, Zigbee, and Z-wave are all common wireless IoT connection schemes.

Intermittent lockups and reboots are most likely caused by ___________. A. corrupted drivers. B. bad hard drives. C. resource conflicts. D.-- failing power supply.

Correct Answer: Failing power supplies are a major cause of intermittent lockups and reboots. Incorrect Answers: The others will create lockups/reboots, but are far more predictable.

A technician has a client's laptop that is randomly shutting down. Which of the following is the first step of the troubleshooting theory that the technician should perform to resolve the laptop's issue? A. Establish a plan of action to resolve the problem B. Document finding, actions, and outcomes C.-- Identify the problem D. Establish a theory

Correct Answer: First off, you've got to identify the problem. No sense in fixing it before you understand what it is. Incorrect Answers: All of the other options come later in the troubleshooting process.

A user reports that their PC does not work. Which of the following would be the best question for the technician to ask the user to get further information? A.-- "What exactly does not work?" B. "Are you able to sign on?" C. "Can you get to the Internet?" D. "Does the PC turn on?"

Correct Answer: First solicit information from the user about the particular problem that they're having. Incorrect Answers: The user hasn't said anything about the Internet yet. Asking whether the PC turns on or if the user can sign on aren't open-ended enough questions.

A user complains because the social media apps on his mobile device always note his location. The user is worried about privacy, and would like to keep this information from being broadcast on his social media. Which of the following features should the user adjust in order to accomplish this? A. WiFi B. Tethering C. Filtering D.-- Geotracking

Correct Answer: Geotracking can be turned off. Many apps are able to use GPS enabled mobile devices to identify a person's physical location. Mobile devices often have this feature within their camera app. This setting can be easily changed on your mobile device, to not leave your location. Incorrect Answers: Filtering is not a correct answer. Filtering refers to removing unwanted features of a signal. Turning off WiFi will not assist, as the GPS is still active. Tethering is a way to use a device as a hotspot to share an internet connection, it will not assist the user.

Which of the following mobile phone features redirects the screen orientation as the user turns their phone? A. Locator application B.-- Gyroscope C. Geotracking D. GPS

Correct Answer: Gyroscope - A gyroscope keeps track of a phone's orientation in space. Incorrect Answers: A GPS is used to keep track of a phone's location. Geotracking is a treasure-hunting game using a phone's GPS. A locator application is an app that uses the GPS to find a lost or stolen phone.

A technician is working on a PC and notices the error message "CMOS BATTERY LOW." Exercising best practices, what should he do next? A. Ignore the message and continue on B.-- Replace the battery with a CR-2032 C. Disable the warning in CMOS D. Reseat the battery

Correct Answer: Head down to your local electronics store and replace it with a CR-2032 battery. Ahhhh, feel that? That is the freshness of a new battery installed. Incorrect Answer: Ignoring the message and disabling the warning can certainly be done, but I wouldn't chalk that up to "best practices." Reseating the battery will just lose all your CMOS settings and then you're still stuck with a not-quite-dead-yet battery.

When choosing a home theater computer, what are the BEST features to include? (Select TWO). A. Dual Monitors B. Liquid Cooling C.-- Digital Audio D. VGA Output E. NFC Capability F.-- HDMI Output

Correct Answer: Home theaters focus on the audio and visual in your television, movies, games and music. HDMI gives the best audio and video output. Incorrect Answers: Home theaters do not push the processor's ability to the point of requiring extensive cooling. VGA output does not offer as high a quality as HDMI output. Dual monitors are not necessary, as a home theaters generally have a large screen for viewing. Near field communication is generally utilized for mobile pay devices.

Which of the listed network devices can only broadcast data? A. Firewall B. Switch C. Router D.-- 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 is true of an I/O shield? A. The I/O shield must be customized to fit the case. B. All I/O shields are standardized to fit all motherboard I/O areas. C.-- The I/O shield is customized to fit the motherboard I/O area. D. The dimensions of the I/O shield for a Micro-ATX motherboard are 9.6 inches by 9.6 inches.

Correct Answer: I/O shields are customized to fit the motherboard I/O area. Incorrect Answers: I/O shields have standard dimensions to fit standard form factor cases. Micro-ATX motherboards are 9.6x9.6, not their I/O shields. Different motherboards have different I/O ports so it is impossible to create a one-size-fits-all I/O shield for different motherboards.

Which of the following motherboard form factors is the smallest? A. Micro-ATX B.-- ITX C. ATX D. BTX

Correct Answer: ITX (mostly referred to as Mini-ITX) was created by VIA in 2001 as a 17 x 17 cm low-power motherboard form factor. It is the smallest form factor of the choices given. Incorrect Answers: ATX is the current standard form factor for most desktop systems. It is rather large at 305 × 244 mm. Micro-ATX (sometimes referred to as mATX) is a form factor standard that is slightly smaller than ATX. It comes in at 244 × 244 mm. BTX is a pretty much defunct form factor standard that repositions some of the internal components to provide for better cooling. It measures at 325 × 266 mm.

A technician is reconfiguring a mobile e-mail client for offline mode. Which of the following describes the expected time it will take to synchronize the account with the e-mail server? A. There is no offline mode for e-mail B. It will depend on the POP settings of the e-mail server C. It will depend on the SMTP settings of the e-mail server D.-- It will depend on the time when the account was last synchronized

Correct Answer: If it's been a while since the last sync, it will take longer to download the increased amount of e-mail. Incorrect Answers: The other answers will not affect the sync time for e-mail

A user reports that her desktop PC shuts down 10 minutes after turning it on in the morning. When the technician moves the PC, it sounds like there are loose parts sliding around in the case. Which of the following is the most likely explanation for the PC shutting down? A. The CMOS battery is bad B.-- The heat sink retaining clip has broken loose C. A memory module has become unseated D. The hard drive cable has become unseated

Correct Answer: If the heat sink has come loose, the CPU will gradually build up heat until the it overheats and shuts off. You'd also hear the heatsink clunking around inside the case, letting you know that something's loose in there! Incorrect Answers: A bad CMOS battery would just result in the CMOS settings resetting to their default values whenever the PC was restarted. An unseated memory module wouldn't cause a PC to randomly shut down. A PC with a disconnected hard drive wouldn't shut down; you just wouldn't be able to access the hard drive in Windows.

A technician is called out to look at a wireless client that can't access the Internet. She notices that the computer has an IP address of 169.254.155.2. What is the problem? A. DNS B.-- DHCP C. WINS D. WPA

Correct Answer: If the wireless client can't access the DHCP server for some reason, its operating system will assign it an APIPA address. The tech should check the DHCP server. Incorrect Answers: WPA is a wireless encryption technology and has nothing to do with handing out IP addresses. WINS stands for the Windows Internet Name System. It is Microsoft's implementation of DNS, and neither it nor DNS hand out IP addresses.

What type of printer uses carbon paper? A.Impact-- B.Laser C.Inkjet D.Thermal

Correct Answer: Impact printers use a special type of carbon paper and an ink ribbon in order to leave marks on the paper by striking the ribbon. Incorrect Answers: Inkjet printers use ink to print on a variety of types of paper. Thermal printers use heat-sensitive paper to create images. Laser printers can print on many different types of paper.

Which is not a wireless radio technology found in computers, tablets or phones? A. Bluetooth B. NFC C. RFID D.-- Infrared

Correct Answer: Infrared is a rarely-used wireless technology that communicates with infrared light, not radio waves. Incorrect Answers: Bluetooth, RFID and NFC are all wireless radio technologies.

A user is connected to his personal mobile hotspot device at a library for internet access. He notices the display shows two connections, instead of just one. Which of the following actions will prevent only unauthorized access to the device immediately? (Select TWO). A. Turn off the hotspot, and try later to see if the intruder has left. B.-- Add the intruding device to a blocked access list C. Utilize a WiFi analyzer to identify the intruding device. D.-- Change the SSID's broadcast name. E. Use the hot spot to access the intruder's device.

Correct Answer: It is best to block the device from your access list, but you can also prevent the connection by changing the SSID. Changing the SSID will also cause the intruder's system to lose the connection, but you will need to be certain the intruder does not connect to the new SSID. Incorrect Answers: Using the hot spot to access the intruder's device will not prevent them for the accessing your device. Turning off the hotspot will immedately stop the intruder, however, it also prevents your access. Utilizing a WiFi analyzer to identify the intruder will not prevent the unauthorized access.

What is the minimum number of drives to perform RAID 5? A. 5 B.-- 3 C. 4 D. 1 E. 2

Correct Answer: It takes a minimum of three drives to create a RAID 5 array. Incorrect Answers: One, two, four and five are incorrect. It requires two for data and one for parity.

A user reports that he cleared a paper jam and now cannot print. The technician reseats the paper and then prints a test page from the printer. A test page sent from the workstation does not print. Which of the following actions should the technician take first? A.-- Clear the print queue B. Check the printer connection C. Reboot the computer D. Stop and start the printer

Correct Answer: It's possible that the print queue is backed up, so clearing it might help things get moving again. Incorrect Answers: It's possible that the printer's connection has come loose, but if the printer hasn't been moved recently, it's probably a better idea to simply clear the print queue. Rebooting the computer might work, but only because it would clear the print queue. Clearing it manually might be the quicker option. Restarting the printer most likely won't do anything. Do it as a last resort.

Danerys needs high-powered but perfectly quiet cooling for a HTPC she's building. What's her best option? A. Side panel slots B. Thermal paste C. Additional fans D.-- Liquid based

Correct Answer: Liquid cooling is both powerful and quiet. Perfect for a home theater PC! Incorrect Answers: Side panel slots help with cooling, but they're definitely not a complete solution. Fans are a bad choice for a home theater environment, since they can create distracting noise. Thermal paste is necessary for cooling, but you can't cool a PC with just thermal paste.

Jim, a user, states that his inkjet printer is not printing as clearly as when he first purchased it. What should you do first to rectify this issue? A.-- Calibrate the printer B. Replace the ink cartridges C. Use a different type of paper D. Replace the USB cable

Correct Answer: Looks like the ink may have dry up a little and you need to run the maintenance tool. Often times calibrating the printer will include running a printer head cleaning utility. Incorrect Answers: It may come to replacing the ink cartridges, but don't get too eager. Those bad boys are expensive, after all! Try doing that last if possible. Using a different type of paper might help if you are using a some strange type of paper. Unfortunately, in this scenario, we don't have any idea what kind of paper Jim is using. Initially, assume he is using the right kind. Regardless, it definitely wouldn't be my FIRST step. Replacing the USB cable would be a good idea if we were having connectivity issues with the printer itself. This, however, is a performance issue with the printer. Besides, based on this scenario, we have no clue what kind of connectivity is being used. Granted, it probably IS using USB, but it could also being using Wi-Fi, Ethernet, or even a parallel connection.

You are configuring a new wireless router for a SOHO network and you want to ensure that only specific client machines can connect. What should you use? A. WPS B.-- MAC filtering C. DMZ D. Port forwarding

Correct Answer: Looks like you want to turn on MAC filtering and set yourself up a whitelist. Now only the machines YOU decide on get to connect to the network. Incorrect Answers: Port forwarding forwards packets to a specific IP address based on a specific port that you configure. This is used for practically any application that needs to connect directly with other users on the Internet. Wi-Fi Protected Setup (WPS) is a wireless computing standard that enables a user to simply press a button on a wireless device so that it can easily join a WPS enabled Wi-Fi network. This standard is frequently used with Wi-Fi printers. A Demilitarized Zone (DMZ) is a feature that can be enabled routers. Think of what is happening for port fowarding and then apply that knowledge to all 65,536 ports on the Internet. Feeling vulnerable yet? You should.

MAC addresses can be represented by how many hexadecimal characters? A.-- 12 B. 8 C. 16 D. 4

Correct Answer: MAC addresses are made up of 12 hexadecimal characters. Incorrect Answers: Four, eight, and sixteen are incorrect.

MAC addresses are made up of how many bits? A. 64 B.-- 48 C. 24 D. 128

Correct Answer: MAC addresses are made up of 48 bits. Incorrect Answers: 24, 64, and 128 are incorrect.

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? A. The paper take-up rollers B. The photosensitive drum C. The printer's resolution D.-- 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.

A laptop is setup at a podium for a presentation. The presentation that is projecting extends the laptop's desktop to the projection screen. 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.-- Use the dual display function key to switch how the laptop treats the display, B. Reboot the laptop C. Adjust the screen orientation D. Adjust the display setting in control panel.

Correct Answer: Most manufacturers provide quick use function keys that can be used from the keyboard. Incorrect Answers: Although you can use applets in the Control Panel to adjust between the dual display functions, the quickest way is to use the shortcut keys that are set up on they keyboard. The screen orientation will only change portrait or landscape. Rebooting the laptop will not change the way the laptop uses the multi-screen environment.

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? A. Connect an external monitor B. Update the video card drivers C.-- Change the screen orientation D. Replace the video card

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.

Which of the following allows a user to pinch zoom on an Android device? A. Micro USB port B.-- Multi-touch C. Accelerometer D. A trackball

Correct Answer: Multi-touch - Multi-touch enables mobile devices to recognize input from more than one finger at a time. Incorrect Answers: An accelerometer helps keep track of a device's orientation in space. A Micro USB port enables mobile devices to connect to a PC. A trackball is an input device that uses a small ball to move a cursor, kind of like a mouse.

A user needs to install a legacy software 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

Correct Answer: Netbooks are designed to perform most of the functions of a laptop, but are smaller and more light weight. In order to achieve this, optical drives are not installed. Legacy software installs from a CD or DVD drive. Incorrect Answers: Lightning ports are used to connect peripherals on Apple devices. A Bluetooth adapter is not designed for installation of software. Near field communication is a protocol for data transfer; it is not designed for software installation.

How are WANs identified? A. Physical addresses B. MAC addresses C. Ethernet address D.-- Logical addresses

Correct Answer: Networks are identified by logical addresses (IP addresses). Incorrect Answers: Physical, MAC, and Ethernet addresses are all different names for the same thing.

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

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.

Which of the following displays would provide the BEST range of visible colors? A.-- OLED B. Plasma C. LCD D. CRT

Correct Answer: OLEDs are able to use LEDs that generate both light and color when supplied a current. This gives the display better perfomance, and a smaller size. Incorrect Answers: Cathode ray tube (CRT) is an older technology. Although modern, plasma screens have a smaller color gamut than OLED. LCD screen technology is also modern, however, since LCDs leak light, they do not provide as good a contrast ratio.

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

Correct Answer: 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.

A user has a new web email account and asks a technician for help with setting up email on a tablet. The user would like for the email to only be stored on this tablet. Which of the following email server setting types would the technician use to accomplish this task? A. SMTP B.-- POP3 C. IMAP D. S/MIME

Correct Answer: POP3 is correct. POP3 protocol was designed to download your email to a inbox on your local system, so email are available when you are not connected to the internet. Incorrect Answers: IMAP protocol was designed to leave your email on a message server, so they can be accessed from multiple locations, until deleted by the user. S/MIME is a standard for public key encryption. SMTP is the protocol used for sending email.

Passive mode FTP uses port ______. Active mode FTP uses this same port plus port _______. A.-- 21, 20 B. 21, 22 C. 20, 21 D. 20, 22

Correct Answer: Passive FTP uses port 21, Active FTP uses ports 21 and 20. Incorrect Answers: The other answers do not reflect the correct ports.

Which is not a type of network cable? A. Coaxial B.-- Plenum C. UTP D. STP

Correct Answer: Plenum describes any type of cable with a fire-resistant jacket. Incorrect Answers: Coax, unshielded twisted pair (UTP) and shielded twisted pair (STP) are all types of network cable.

A customer wants to use VoIP phones without having to plug them into an electrical outlet. Which of the following switch features would a technician recommend? A. QoS B. Gigabit C. Wake-on-LAN D.-- PoE

Correct Answer: Power over Ethernet (or PoE) provides electrical power through Ethernet ports. Super handy when there's not a plug nearby. Incorrect Answers: QoS is a collection of technologies dedicated to providing a stable networking environment. Gigabit is a measurement of network speed. Wake-on-LAN is the ability to wake a computer up from a sleep state by sending a special network packet.

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? A.-- Private B. Public C. Hybrid D. Community

Correct Answer: 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 could 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 corporate user is unable to connect to the internet on their workstation. A technician finds the computer has a valid IP address, can connect to corporate network shares, and can view local intranet pages on the workstation's web browser. The administrator tries to navigate to a public internet page, the web browser times out. Which of the following should the technician review? A.-- Proxy settings B. DHCP server C. IPv6 settings D. Performance settings

Correct Answer: Proxy servers are often used in corporate settins to log and filter network traffic. It allows companies to prevent users from accessing certain content on the web. A user's system must use specific proxy server settings in order to be able to gain access to the internet. Incorrect Answers: The problem has nothing to do with performance or IP settings. DHCP server is working or they couldn't connect to the corporate network shares.

Which of the following provides data redundancy by writing data to two disks at the same time? A. RAID 0 B.-- RAID 1 C. RAID 5 D. JBOD

Correct Answer: RAID 1, also known as mirroring, will take the data you are working with and write it to two disks at the same time, giving you redundancy in case of drive failure. Incorrect Answers: RAID 5, also known as independent data disks with distributed parity, will take data and stripe it across multiple disks (at least three to be exact). It also has parity on each disk so that if one of the drives fails, it can quickly recover a lost drive. JBOD, also known as Just a Bunch Of Disks, is exactly what it sounds like. You take a bunch of disks and link them together. So if I had a 10 GB, 90 GB, 100 GB, and 200 GB disk all hooked up using JBOD, I would have a 400 GB drive according to my system. RAID 0, also known as disk striping, is where you take two or more disks and spread (or stripe) the data being written across multiple drives. You will get ridiculous improvements in reads and writes using this implementation of RAID. However, if you lose one of those disks, you will lose all of your data. This version of RAID offers no redundancy.

Of the following connectors, which would you most likely find on a piece of twisted-pair wire? A.-- RJ-45 B. ST C. BNC D. SC

Correct Answer: RJ-45 connectors are the only choices that you might potentially find on a twisted-pair wire. Incorrect Answers: BNC connectors are found on coaxial cable. SC and ST connectors are found on fiber-optic wires.

If installed RAM does not show up in the CMOS setup program, what is the best course of action? A. Add cooling fans to the RAM module(s). B.-- Re-seat the RAM module(s). C. Re-seat the main power connector. D. Re-seat the CPU.

Correct Answer: Re-seat the RAM. Incorrect Answers: None of the other choices will cause the system to recognize previously unrecognized RAM.

You have just assembled your first PC. You hit the power button and the computer turns on. As the computer runs through POST, it starts beeping multiple times and you don't see anything displayed on the LCD. You notice there are no activity lights flashing for the HDD. However, we you check the inside of the computer, you can hear the drive spinning up. What is the NEXT thing you are going to check in order to get the PC functioning? A.-- Reseat your RAM B. Reseat your Front Panel LEDs C. Change the jumper settings to C/S D. Replace the LCD with one that functions

Correct Answer: Reseat your RAM. Amongst all the information you were able to gather from this scenario, knowing that it was making multiple beeps is an indication that the RAM is not seated correctly or worse yet... is bad! Incorrect Answers: Changing you hard drive settings to Cable Select (C/S) won't effect your outcome of POST. Replacing the LCD monitor won't change the lack of character on the screen because your RAM still needs to be seated. Reseating your Front Panel LED's, while a good idea considering you don't see hard drive activity, would not fix a no-boot situation like you are in.

A technician is setting up a new workstation with a clean install of Windows on a new hard drive using an OEM DVD. When booting, the computer does not recognize the optical disc and a 'non-system disk or disk error' is observed. Which of the following should the technician do FIRST? A. Flash the motherboard BIOS B. Verify the cables are connected. C.-- Reset the boot sequence to check optical drives first. D. Replace the optical drive.

Correct Answer: Resetting the boot sequence will fix the problem. Boot sequence is the order that your computer searches data storage devices for a program that contains files to load an operating system. Many systems default to search a hard disk for the files, and not an optical drive. These settings can be changed in the BIOS. Incorrect Answers: Flashing the motherboard BIOS only updates the software on the motherboard. The cables should not be an issue. The system does see the hard drive, it does not see the operating system. Replacing the optical drive is not the first choice. Make certain the sytem is able to boot to the optical drive, before you decide it is faulty equipment.

What form factor of memory is found in laptops? A.-- SO-DIMM B. SDRAM C. DIMM D. RAMBUS

Correct Answer: SO-DIMMs are a small form-factor type of RAM stick, found primarily in laptops and small desktops. Incorrect Answers: While SDRAM is often found in laptops, it isn't a form factor. RAMBUS is an outdated technology and is not found in laptops. DIMMs are found in desktop PCs.

Which port does SSH use? A. 25 B. 3389 C. 22-- D. 21 E. 110

Correct Answer: SSH uses port 22. Incorrect: POP3 uses port 110. RDP uses port 3389. FTP uses port 21. SMTP uses port 25.

Virtual machines provide the ability to do which of the following? A. Use less system memory. B. Allow higher internet speeds. C.-- Share hardware resources. D. Extend 32-bit machines to 64-bits

Correct Answer: Share hardware resources is correct. A virtual machine is a software emulation of a computer system that runs on a real computer. It allows you to easily switch between different operating system configurations, but utilize the same computer hardware. Incorrect Answers: Extends 32-bit to 64-bit machines is incorrect. Allows higher internet speeds is incorrect. It only allows multiple systems to share one internet connection. Use less system memory is incorrect. Virtual machines require more system memory.

A network printer is not printing for any of the users, and the jobs sent are showing in the queus of the local machines. The printer has paper in the trays and the toner cartridge is full. The printer display shows ready on the LCD display. A technician has been able to connect with a laptop to test the network port, and is able to connect. Which of the following should the technician do to get the printer functioning again? A. Move the printer to a different port, and connect to the network. B.-- Review that the server's print spooler service is running properly. C. Try to print a test page with the laptop connected to the printer directly. D. Replace the network cable to the printer.

Correct Answer: Since the printer jobs are queuing locally, and the printer is showing ready, the failure is likely in the spooler. Incorrect Answers: The cable does not need replacing, as the laptop was able to connect properly. A test page will only confirm the printer's function; it will not allow the users to print. The technician was able to confirm that the port connects to the network properly.

Which is not a wired connection for a smart phone? A. Micro USB B. USB C C.-- Ethernet D. Lightning

Correct Answer: Smart phones do not come with Ethernet connectors. Incorrect Answers: Smart phones commonly have Lightning, micro USB, or USB Type-C connectors.

Which of the following features can be configured with keyboards to assist users with disabilities? A. Character Map B. Pointer trails C.-- Sticky keys D. Magnifier

Correct Answer: Sticky keys makes it so that a user doesn't have to press more than one key at a time in order to do keyboard shortcuts. Incorrect Answers: Pointer trails make it easier to track the movement of the mouse pointer across the screen. The magnifier feature enables users with visual impairments to more effectively use a computer. The Character Map is a huge list of all the special characters that your system is capable of displaying.

You install a second video adapter and monitor on your Windows PC, but when you start the system, the second monitor doesn't display anything. You've confirmed that the video driver is correct, and that the video card is active in Device Manager. What else do you need to do? A. Reinstall Windows with the /MMSUPPORT parameter switch. B.-- Open Display properties and check the Extend my Windows desktop onto this monitor checkbox. C. Upgrade the PC to Windows 10 Pro. D. Open Control Panel and run the Multiple Monitor configuration applet

Correct Answer: Tell the OS that you want to use two monitors by checking the Extend my Windows desktop onto this monitor checkbox in Display properties. Incorrect Answers: There is no Multiple Monitor configuration applet. Windows 10 Pro is not required for a dual-display setup. The reinstallation of Windows is not needed.

Which is a voltage associated with an ATX PSU? A. 6 v B.-- 12 v C. 10 v D. 2 v

Correct Answer: The ATX power supply unit has 3.3 v, 5.0 v, and 12 v powering the different devices in your PC. Incorrect Answers: Modern PSUs do not supply 2 v, 6 v, or 10 v currents.

While investigating a 4-year-old PC that is taking an unusually long time to boot, a technician discovers that the BIOS is rediscovering the hardware system at every boot. What should the technician do to resolve the problem? A. Reset the BIOS using the CMOS reset jumper B. Press "F9" while the computer is booting, but before the OS starts to load C. At the OS level, launch Device Manager and re-scan the hardware D.-- Change out the CMOS battery on the motherboard

Correct Answer: The CMOS battery is most likely dead or dying, so replacing it should fix the problem. The technician will also have to make any non-default CMOS settings that the user had previously set up. Incorrect Answers: Since this is a pre-boot problem, nothing in Windows will fix it. Pressing the F9 key during boot will bring up system recovery options for some brands of PC. It's not really a standard shortcut, though. The BIOS is already resetting every time the PC boots, so manually resetting it won't do a blessed thing.

Which component usually takes the most disassembly to replace in a laptop? A. Hard drive B. Battery C. RAM D.-- CPU

Correct Answer: The CPU is usually buried deep inside a laptop. Incorrect Answer: RAM, batteries, and hard drives are usually easily accessible.

A user is complaining that nothing happens when he tries to print to a shared printer, even though the printer is powered on. What is most likely the cause of the problem? A. The printer is low on toner B. The ISP service is currently not available C. The user's print drivers are corrupted D.-- The print server does not have network connectivity

Correct Answer: The answer to about 90% (a rough, completely made-up estimate) of network printer problems is "the printer has no network connection." Do yourself a favor and check that first. Incorrect Answers: You're not sharing a printer over the Internet, so your ISP has nothing to do with it. It's probably not a corrupted driver issue. Network issues are far more common than driver issues. If the printer was simply low on toner, it would at least try to print or give an error message.

How would you define an accelerometer? A. It tilts the screen when I rotate my iPad B. Increases the speed of the CPU C.-- It measures the velocity of the device D. Gives the device a longer battery life

Correct Answer: The definition of an accelerometer is a device that measures proper acceleration (speed, velocity). These devices are built-in to many of our mobile devices, including smart phones and tablets. We also see accelerometers in cars to monitor when a crash has occurred so that 911 can be called. We also see accelerometers in your Nintendo Wii controllers so you can play games! Incorrect Answers: An accelerometer will not give your device longer batter life or increase the speed of your CPU. It also does not tilt the screen on your iPad. The accelerometer measures and detects the tilt in your screen, iOS then performs a function to tilt the screen for you. Yes, it's a mean answer, but I'm looking for a definition of an accelerometer, not the effect of one.

A retail-boxed CPU usually comes with a ________ fan. A. Large B.-- OEM C. Overdrive D. Specialized

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.

What is the best way to toggle between a laptop's screen and an external monitor? A. Turn the monitors on and off B. Display settings in Control Panel C.-- Function keys on keyboard D. Task Manager

Correct Answer: The function keys on the keyboard enable users to do things like change the brightness and contrast of the screen, change the speaker volume, and toggle to an external monitor. Incorrect Answers: Task Manager enables you to end unresponsive processes, start and stop services, and check your computer's performance. The display settings won't enable you to toggle a monitor on or off. Turning the monitor on and off won't do anything if the PC isn't outputing any video to it

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? A. Run IPCONFIG. B. Install the driver for the network card. C. Verify that the switch is working properly. D.-- 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 is not a consideration when selecting a slot in which to install an expansion card? A. Slot type B. Air flow C.-- Type of operating system D. Space for connectors

Correct Answer: The operating system has no bearing on which slot an expansion card is installed into. Incorrect Answers: Air flow, type of slot, and room for rear connectors are all important considerations when selecting an expansion card slot.

Which is not part of the impact-printing process? A. Pins pop out of the print head. B.-- Pre-heat the printhead. C. Inked ribbon makes contact with paper. D. Pins strike an inked ribbon.

Correct Answer: The printhead of a dot matrix (impact) printer does not require heating. Incorrect Answers: All of the other options are part of the process of impact printing with a dot matrix printer.

The purpose of applying thermal paste between the CPU and heatsink is to: A.-- aid in the transfer of energy from the CPU to the heatsink. B. act as a fire retardant should the CPU overheat. C. keep the heatsink firmly in place on the CPU. D. make the heatsink easier to remove when replacing the CPU.

Correct Answer: The purpose of applying thermal paste between the CPU and the heatsink is to aid in the transfer of energy (heat) from the CPU to the heatsink itself. Incorrect Answers: If anything, thermal paste makes the heatsink more difficult to remove depending on the thermal paste you get. There's a reason it's called thermal PASTE. There are no fire preventing characteristics in thermal paste. Keeping the heatsink firmly in place on the CPU is the job of the heatsink's brackets and mounting clips.

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? A. IP address and DNS B. Server and gateway C. IP address and domain D.-- Server and domain

Correct Answer: 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.

Which of the following options gives the best brief summary of RAID? A. RAID uses data striping to reduce hard drive write time and parity bits to reconstruct the data from a failed hard drive B. RAID stands for Redundant Array of Independent Disks C.-- RAID uses multiple hard disks to increase performance and/or provide protection against data loss D. RAID is a dynamic logical disk management system

Correct Answer: The whole purpose of RAID is to increase drive performance and data redundancy. Incorrect Answers: None of the other answers adequately describe RAID.

Which is not a cloud ownership category? A. Private B. Public C. Hybrid D.-- Corporate

Correct Answer: There is no cloud ownership category known as a corporate cloud. Incorrect Answers: While most of the physical equipment that makes up the cloud is owned by corporations, cloud ownership models focus on who is able to use services provided by a given cloud. Public, private and hybrid are each cloud ownership models.

A broken fan can cause __________ damage to the CPU. A. Shock B.-- Thermal C. Electro-static D. 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

Thermal printers have a major disadvantage compared to other printer technologies: thermal printing __________ . A. Is far too slow for most functions. B. Costs much more in terms of consumables. C.-- Is unsuitable for archival purposes. D. Is limited to 16 colors.

Correct Answer: Thermal paper is sensitive to heat, making it unsuitable for archival printing. Incorrect Answers: Thermal printing uses one color, not 16, nor is it too slow. Its cost is not its main disadvantage, either.

A custom configured PC with a powerful processor, high-end video, upgraded audio, and increased cooling would be most suited to which of the following applications? A. Thin client B.-- Gaming PC C. Virtualization workstation D. Thick client

Correct Answer: This setup would be ideal for a powerful gaming PC. Work's for chumps! Incorrect Answers: Thin clients are the most bare-bones PCs around. They wouldn't have these advanced features. A virtualization workstation wouldn't need a high-end video card or upgraded audio. A thick client is just a basic PC. Nothing fancy needed.

You are working on a laptop with an LCD screen that has dead pixels. What is the best way to get rid of them? A.-- Replace the LCD panel B. Replace the back bezel C. Replace the inverter D. Replace the backlight

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.

A user is having a difficult time printing certain types of documents to her laser printer. When she sends complex, mult-page, multi-color PDF files to the printer, it refuses to print. What is most likely the solution? A. Flash the firmware of the laser printer B.-- Add more RAM to the laser printer C. Add more RAM to her PC D. Update her printer driver from PCL to Post Script

Correct Answer: Throw more RAM in that printer. We have these old HP LaserJet 4s in our offices at Total Seminars. They are from the late 90s and they still work! We at Total Seminars are very conscientious with our hardware maintenance. In order to print complex documents in this day and age, we just updated the RAM on the printers. Sure, it still takes about 5 minutes to print a PDF, but it works! Incorrect Answers: PCL drivers were created by Hewlett-Packard, while PostScript (PS) drivers are maintained by Adobe. They are both used by Raster Image Processor (RIP) to generate images for the printer. And while this could have an effect on printing, the fact that she is able to print some documents means that driver is working at some level. Flashing the firmware of the printer will not change the outcome of complex documents being printed. Adding more RAM to the PC, while ALWAYS a great idea, would not fix this issue, because this is a problem with the printer, not the computer.

You just upgraded the RAM on your older PC at home. When you boot up the computer, it doesn't recognize the new memory even though it was on the Qualified Vendor's List (QVL) on the manufacturer's website. What are you going to need to do to solve this problem? A.-- Flash your BIOS B. Replace your CR-2032 battery C. Go to Windows Update and search for any latest patches D. Change the jumpers on your motherboard to allow for the RAM upgrade

Correct Answer: Time for a BIOS flash! The website said it is compatible, but if technology has changed, your BIOS version on your motherboard may be dated. The site will often also show the BIOS version required for the hardware. Incorrect Answers: This isn't a Microsoft problem yet, so visting the Windows Update site won't do much good. The only jumpers this question writer has ever messed with on a motherboard pertained to clearing my CMOS settings and overclocking my CPU. I haven't done the latter since 1999. A bad CR-2032 battery, or CMOS battery, will only cause a system to lose settings.

While trying to type, a user reports that his notebook is randomly moving the cursor or mouse, which causes him to make a lot of typing errors. What action can the technician take to solve the issue for the user? A. Reverse the buttons on the mouse pad B. Adjust the settings so the mouse moves at a slower rate C.-- Disable the mouse touch pad. D. Adjust the settings so the mouse moves at a faster rate

Correct Answer: Touchpads on laptops can get bumped by your thumb or the palm of your hands as you type. Most laptops have a button or a function key that will allow you to disable the mouse touchpad. Incorrect Answers: The rate of the mouse (quick or slow) is not effecting your cursor movement. This is generally caused by your hands touching the touch pad. Reversing the buttons will not assist, as it is commonly your hands touching the touch pad.

A technician is troubleshooting a RAID 6 array on a high-end CAD/CAM workstation. Two disk drives have their fault lights on. Which of the following is the best action for the technician to perform when fixing the problem? A. Reseat the drives, back up the data, and then replace them B.-- Replace the failed drives and verify the RAID rebuilds completely C. Reseat the drives and monitor the RAID status over a few days D. Replace the failed drives and restore the data from a known-good backup

Correct Answer: Two drives have failed, but you can still rebuild the RAID 6 array. Replace the drives and make absoultely sure that the rebuild completes successfully. Incorrect Answers: If the fault lights are on, then it's probable that the drives have failed, so reseating them won't help. It's in your best interest to get those drives replaced as soon as possible. If you replace the drives, the RAID will rebuild the data automatically.

The benefit of MAC filtering in wireless networking is that the network: A. is not visible B. uses static IP addresses C.-- is more secure D. is encrypted

Correct Answer: Using MAC filtering can keep out some unwanted users. Incorrect Answers: MAC filtering does not encrypt or hide a wireless network, and it doesn't force you to use static IP addresses.

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? A. Client hardware requirements B.-- Server hardware resources C. Network resources D. Server software security requirements

Correct 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.

Of the available choices, which is the least secure form of encryption? A. TKIP B. WAP C. AES D.-- WEP

Correct Answer: WEP encryption is easily crackable, and is not at all recommended for a network unless there are no other options. Incorrect Answers: WAP stands for wireless access point, which is the device that sends out a wireless signal. AES is the encryption algorithm used by WPA2. TKIP is the encryption algorithm used in WPA.

Which is a primary characteristic to be considered when choosing a power supply? A. Trip alert B. Number of USB power plugs C. Airflow volume D.-- Wattage

Correct Answer: Wattage is the primary concern in selecting a power supply. Incorrect Answers: Airflow on a power supply is pre-designed for the maximum capability of the power supply. Â Power supplies do not have trip alerts or USB power plugs.

Viserys just installed two new memory modules into his computer. His motherboard supports DDR3 RAM with a maximum bus speed of 1600 MHz. The memory modules he installed were mismatched; one operates at 1066 MHz and one at 1333 MHz. At what bus speed will the system function? A. 1000 MHz B.-- 1066 MHz C. 800 MHz D. 1600 MHz

Correct Answer: When mismatched RAM modules are installed, the system operates at the speed of the slower module; in this case, that's 1066 MHz. Incorrect Answers: The other answers are just there to trick you. Don't fall for them!

A technician is replacing all of the access points in an office to increase the wireless speeds. The current location of the access points allows for wireless connectivity throughout the entire office. Which of the following 802.11 standards should be used? A.-- 802.11ac B. 802.11b C. 802.11g D. 802.11n E. 802.11a

Correct Answer: When replacing the access points to increase speed of the connection, it is best to use the latest generation of the standard. The standard offers backward compatibility to most previous standards. Incorrect Answers: All the standards are older standards, and do not have the latest technology. 802.11ac provides faster throughput.

What type of device should be placed in a DMZ? A. Backup server B. Wireless printer C.-- Gaming server D. Smartphone

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.

A new company is upgrading a media workstation. The computer will be predominantly used for graphic intensive presentations, slideshows, and video gaming tournaments on a large presentation screen. Which of the following BEST satisfies the needs of the company? A. Gigabit NIC, network connectivity, dual monitors, TV tuner B. High system RAM, network connectivity, high-end audio C. Network connectivity, TV tuner, surround sound audio, dual monitors D.-- High-end video, high-end audio, multicore processor

Correct Answer: When using a system for grahic intensive presentations, a high end video component is required. Graphic intensive presentations and gaming requires a RAM on the video card, as well as within the system itself, to avoid slow graphic display. Incorrect Answers: Although RAM, networking and high-end audio are good components, they are not the best. Graphic intensive presentations need high-end video. Although Gigabit networking connectivities are good components, a TV tuner is used for receiving televison signal. Dual monitors will not likely be necessary, as they likely have a presentation screen. Although network, connectivity and surround sound audio are good components, a TV tuner is used for receiving televison signal. Dual monitors will likely not be necessary as they likely have a presentation screen.

Most USB peripherals already have a what? A. HID interface B. Lightning connector C.-- Windows driver D. USB lock

Correct Answer: Windows comes with drivers for many common USB devices. Incorrect Answers: A USB lock is an unpowered physical plug that secures open USB ports on a computer, not part of a USB peripheral. There is no such thing as an HID interface. USB devices come with USB connectors, not Lightning connectors.

Which of the following resources is MOST important for accessing a remote virtual PC while using a Windows PC on your corporate network? A. CPU speed B.-- Network bandwidth C. Maximum drive space D. High-speed RAM

Correct Answer: You are on a Windows computer and are accessing a server on your network that serves up virtual machines. You need to have a high speed, gigabit network going to load those VMs efficiently. Incorrect Answers: CPU speed and high-speed RAM are both concerns with any virtual environment, but they aren't the biggest concern in this networked scenario. Maximum drive space is also a very important thing to have with a virtual environment. However, you are loading the virtual machine from a network resource. You don't need to worry about hard drive space at all on your local PC.

What type of storage medium would you use to create a RAID 5 array? A. Dual layer DVDs B. Flash drives C. Blu-ray discs D.-- SATA HDDs

Correct Answer: You can create a RAID using SATA hard drives. Incorrect Answers: No type of removable media can be used to create a RAID.

A user is operating a virtual machine and discovers it has been infected with malware. Which of the following applies? A. The VM will crash and cause irreparable damage to the host PC B. The host computer will automatically delete the VM C.-- The VM can be shut down with no harm to the host PC D. The host computer will quarantine the VM automatically

Correct Answer: You can shut down an infected VM without fear of it harming anything on the host PC. Incorrect Answers: The host PC won't automatically delete or quarantine an infected VM. An infected VM won't cause damage to a host PC.

Which of the following home computer synchronization methods are possible with an iOS device? (Select two.) A. Parallel B. Infrared C.-- USB D. FireWire E.-- Wi-Fi

Correct Answer: iOS devices can sync using USB or W-Fi only. Incorrect Answer: No iOS device has ever used infrared for synchronization, and none have used FireWire for several years.

Two common Operating Systems for mobile phone devices are: A. Lion and Chrome B. Cyborg and Mac C.-- iOS and Android D. Vista and OSX

Correct Answer: iOS is the Apple mobile device operating system, and Android is owned by Google. Incorrect Answers: Lion, Chrome, Vista, and OSX are all software, but not operating systems for mobile devices. Mac is a type of computer from Apple, and Cyborg is made up.

Running SCSI commands over Ethernet is called __________? A. SCSIi B.-- iSCSI C. eSCSI D. SCSIe

Correct Answer: iSCSI uses SCSI commands sent over Ethernet. Incorrect Answers: SCSIi, eSCSI, and SCSIe are not real tems.

When putting a mobile device into airplane mode, which of the following features is typically disabled? (Select two.) A. SD storage B.-- Wireless C.-- Cellular data D. Multi-touch ability E. Data encryption

Correct Answers: Airplane mode disables all networking abilities, such as cellular data and Wi-Fi. This prevents the phone from disrupting the airplane's communications. Incorrect Answers: Airplane mode doesn't disable any of the other listed features because they don't interfere with airline communication.

When setting up a new wireless router, which of the following actions should the technician take first in order to secure the network? (Select two.) A. Position the antennas to prevent outside access B. Enable MAC filtering C.-- Change the default user name D. Disable unused ports E.-- Change the SSID

Correct Answers: By changing the SSID and default user name (also the password, but that's not an option here), you make it more difficult for outsiders to log into your network or router. Incorrect Answers: Disabling unused ports and enabling MAC filtering might help inrease security on your network, but they're not the things you should do FIRST. Changing the position of the antennas won'd do anything for security.

What are the most important features when shopping for a CAD workstation? (Select three.) A.-- Powerful video card B. Multiple network cards C.-- Multiple large HD monitors D. Powerful sound card E.-- Large drive space allocation

Correct Answers: CAD workstations need large hard drives for the complex CAD files they work with, multiple monitors to give the users more space to work, and a powerful video card to render the CAD files. Incorrect Answers: CAD workstations definitely don't need a powerful sound card, and they can certainly get by without multiple network cards, too.

You want to create a PC that will act as your Home Server—what are some feature you might want to consider for this? (Choose two.) A. Virtualize the server environment B. Multi-touch capability C.-- 1000 Mbps Ethernet D.-- RAID support E. Multiple monitors

Correct Answers: If I were to create a server in my home, I would be saving all of my work to it. And if that were the case, I would want to make sure I'm using RAID 1 or 5 to protect my sensitive data. I would also want to have the fastest wired connection possible to the server. I would choose 1000-Mbps Ethernet (Gigabit Ethernet). Incorrect Answers: You aren't a big business, you are a home user. You don't really need to get into virtualization for this little project. A screen with multi-touch capability would be nice, but it's not really necessary for this kind of computer build. Depending on the OS you put on this computer, you may consider not having a screen at all, let alone multiple montors! Remember, this is just going to be a server; once you get it setup and configured, you won't have much a need to sit in front of it and interact with it. And if you do, that's what Remote Desktop is for!

The image on a customer's laptop is very dim, with only the outline visible. What can cause this problem? (Select two.) A. CRT B. Plasma screen C. OLED D.-- Inverter E.-- LCD

Correct Answers: If the LCD's inverter fails, the backlights can't get any power, causing the image to be so dim as to look almost black. Incorrect Answers: Laptops don't use plasma screens or CRTs, since they are heavy and bulky. OLED screens are very uncommon and don't require a backlight. They either work or they don't; the picture won't get dim from an error.

Which of the following components would be utilized most in a virtualization server? (Select two.) A. Dual-rail 1000w PSU B.-- Quad core CPU C. High-end video card D.-- Maximum memory E. High-end sound card

Correct Answers: In order to properly manage and run all of the virtual machines, the virtualization server will need to have as much memory as possible as well as a multi-core CPU. Incorrect Answers: Having a high-end graphics card and high-end sound card is more important for a gaming PC. Those features are not needed in a virtualization server. A dual-rail 1000w PSU would also probably be needed in a gaming computer where you have multiple graphics cards that require a lot of extra power.

Which of the following paths will open Event Viewer? A. Start | Programs | Administrative Tools | Event Viewer B. Start | Control Panel | Event Viewer C.-- Start | Control Panel | Administrative Tools | Event Viewer D. Start | Control Panel | Accessories | Event Viewer

Correct Answers: Of the choices given, only Start | Control Panel Administrative Tools | Event Viewer will successfully open the Event Viewer. Incorrect Answers: The other paths are incorrect.

The accelerometer in a mobile device makes which of the following possible? (Select two.) A.-- Automatic rotation of the screen when it's flipped B. Protection of the device when it's dropped C.-- Game controller input D. High speed communication from other devices E. Downloads go faster

Correct Answers: The accelerometer enables software (like games) to use the orientation of the device as input, like a steering wheel or game controller. It is also what tells the device that the user has rotated the orientation from portrait to landscape, causing the device to rotate the screen correctly. Incorrect Answers: The accelerometer has nothing to do with downloads or communication with other devices. Many hard drives may contain an accelerometer that will protect it in the event of being dropped, but the mobile devices discussed have no hard drives.

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.) A. The LCD's power inverter is malfunctioning B. The battery is incompatible with the laptop C. You have selected a power scheme in your OS that disables charging D.-- The internal power circuity on the motherboard is faulty E.-- The power adapter that plugs into the wall is malfunctioning

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.

You have an iOS device that you just recently purchased. Select two ways that you can syncronize your device with your computer. (Select two.) A. RS-232 B. IEEE-1394 C. IEEE-1284 D.-- USB E.-- Wi-Fi

Correct Answers: USB and Wi-Fi are the only methods to connect your iOS phone, music player, or tablet to your PC. Incorrect Answers: Apple has yet to implement syncing using the serial port (RS-232), the parallel port (IEEE-1284), or firewire (IEEE-1394). And I doubt they ever will.

You are creating a PC for a client that uses CAD/CAM applications. What are the most important things to consider when creating this computer? (Select two.) A. HDMI output B. High end audio output C.-- Maximum RAM D.-- Powerful processor E. Gigabit NIC

Correct Answers: You need power! Get a powerful CPU and max out your RAM as much as possible so you can handle those hardware intensive CAD/CAM applications. Incorrect Answers: A gigabit NIC wouldn't be the most important thing to have for CAD/CAM. That's just your connection to the network. While having gigabit Ethernet is amazing, it isn't essential for CAD/CAM applications. You won't necessarily need HDMI output. That is more designed for HTPC setups. You can get away with DVI, or maybe even VGA. Jamming out to your favorite Justin Bieber songs isn't necessary for a CAD/CAM station. So you don't need high-end audio output.

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

Correct Answers: 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.

After connecting a laptop to an external monitor, no display is detected and the monitor goes into sleep mode. Which of the following should be attempted first to correct the problem? (Select two.) A.-- Toggle the display using the keyboard shortcut B. Reload the display adapter drivers C. Reboot the operating system D. Verify network connectivity E.-- Change the input mode on the monitor

Correct Answers: You should first try to change the input mode on the monitor, ensuring that it's looking at the correct video source. Also make sure that your laptop is actually outputting to an external display by using the keyboard's external display toggle. Incorrect Answers: Rebooting probably won't help. It might be OK to try eventually, but not before the correct solutions. Reloading the display drivers won't help. Network connectivity has nothing at all to do with this problem.

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). A.-- VGA B. RCA C. Serial D. PS/2 E.-- HDMI

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.

Which subnet mask is used with a Class B address? A. 255.0.0.0 B. 255.255.255.255 C. 255.255.255.0 D.-- 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 addres

How many pins does a DDR2 DIMM have? A.-- 240 B. 200 C. 168 D. 184

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

Which of the following symptoms is most indicative of a bad sensor on a laser printer? A. Paper is picked up in twos and threes B. Blank pages printed without errors C.-- Paper jam error but no jammed paper D. Spontaneous printer reboots

Correct: A paper jam error with no jammed paper is a clear sign of a faulty sensor. Incorrect: 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.

What voltages does an ATX12V P1 connector provide for the motherboard? A. 5 V, 12 V B.-- 3.3 V, 5 V, 12 V C. 3.3 V, 12 V D. 3.3 V, 5 V

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

Which of the following printers is most likely to have a cartridge alignment feature? A. Monochrome LaserJet B.-- Color Inkjet C. Monochrome Inkjet D. Color Thermal

Correct: Color inkjet. The individual cartridges in color inkjets can lose their alignment over time, causing fuzzy printouts. To readjust the printer, you need to print an alignment page. Incorrect: Inkjet printers are the only ones with cartridges that need to be aligned to work properly.

The term Fully Qualified Domain Name (FQDN) is associated with which of the following? A.-- DNS B. DHCP C. POST D. NAT

Correct: DNS uses the FQDN to resolve a name to an IP address. Incorrect: A DHCP server provides IP addresses and other TCP/IP settings for DHCP clients. NAT enables multiple computers behind a router to use a single IP address. The POST is the first routine that runs when you power on the computer.

Which of the following optical media: a) is capable of multiple rewrites and b) has the largest capacity? A. Blu-Ray B. DVD DS (Double-Sided) C.-- DVD-RW D. BD-R

Correct: DVD-RW discs offer decent capacity (4.37 GB) and multiple rewrites. Incorrect: 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.

A company uses a proxy server for FTP and HTTP traffic. What port number needs to be set on the client's FTP applications to enable users to use FTP? A.-- 21 B. 25 C. 110 D. 80

Correct: FTP uses ports 20 and 21. However, port 20 isn't listed, so go with port 21. Incorrect: HTTP (the Web) uses port 80. SMTP (outgoing mail) uses port 25, and POP3 (incoming mail) uses port 110

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? A. He needs to update the NIC's drivers. B.-- His switch only supports 100BaseT. C. He needs to set the NIC's speed settings to "AUTO." D. The other computers on the network only support 100BaseT.

Correct: 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: 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.

Len is nervous about outsiders accessing his home network. Which of the following could he use to control access? A. Ethernet filtering B.-- MAC filtering C. IP blocking D. Port filtering

Correct: Installing MAC filtering would enable Len to limit access to only computers with known MAC addresses. Incorrect: Port filtering might allow access in some scenarios (like blocking DHCP requests), but let's think simpler. IP blocking wouldn't work—which IP's would you block? Ethernet filtering is not a real term or procedure.

Today's portable computers invariably use which of the following battery technologies? A.-- Lithium Ion (Li-Ion) B. Alkaline C. Nickel Metal Hydride (Ni-MH) D. Nickel Cadmium (Ni-CD)

Correct: Lithium Ion (Li-Ion) is the dominant technology. Incorrect: Nickel Cadmium (Ni-CD) and Nickel Metal Hydride (Ni-MH) are earlier technologies no longer used in portable computers. Alkaline batteries cannot be used with any electronics that need constant voltage.

Kenneth has an 802.11n network. He only wants his three computers in the house to be able to access this network. Which of the following technologies would best enable him to do this? A.-- MAC filtering B. Port filtering C. WPA filtering D. DMZ filtering

Correct: MAC filtering. MAC filtering creates allow or deny lists based on MAC addresses. Incorrect: WPA is a form of encryption. There is no such thing as WPA filtering. Filtering by TCP/UDP port number does not block particular systems. Many firewalls have the ability to filter ports based on IP address or MAC address using an Access Control List (ACL), but this isn't to be confused with pure port blocking. A Demilitarized Zone (DMZ) is used to expose certain systems to the Internet. It does not limit access to wireless clients.

Which of the following is a proper name for a stick of RAM? A. CRIMM B.-- DIMM C. LGA D. VGA

Correct: Modern computers use DIMMs for RAM. Incorrect: CRIMMs were used to fill empty slots when using RDRAM. LGA stands for Land Grid Array and is a type of CPU package. BGA stands for Ball Grid Array and is also a type of CPU package.

What does registration do for color laser printers? A. Increases the color depth B. Formats the printer's memory storage to support each color. C. Sends your purchase information to the manufacturer D.-- Realigns each color to make a focused image

Correct: Registration realigns the individual colors to create a sharper focus of the printed image. Incorrect: Saturation would increase the color depth. Registration generally applies to software, though it could apply to hardware. In this case, there's a different type of registration we're talking about. I don't know of any way to format printer memory.

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? A. The NIC is disabled in Device Manager. B. The NIC's hardware switch is set to off. C.-- The NIC is disabled in CMOS. D. The NIC is bad.

Correct: 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: 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.

What is the function of the charging circuit on a laptop? A. Charges the CCFLs B. Charges the laser C. Charges the AC inverter D.-- 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.

What use does the function (Fn) key on a keyboard serve? A. Used to turn off the monitor B.-- Provides additional keyboard capabilities C. Enables access to safe mode D. Activates multimedia functions

Correct: The function (Fn) key, most common on laptops, is a generic key used to add a number of different keystroke capabilities to your keyboard, such as video output switching and turning wireless on/off. However, there is no fixed standard for the specific uses of this key. Incorrect: The other answers are possible functions of the Fn key (in combination with others) but are not the specific function of the Fn key.

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

Correct: This is a Class A address. The Class A first octet is from 1 to 126. Incorrect: 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.

John's laptop won't recharge and he suspects the AC adapter is the problem. Which tool should he use to test it? A. Induction toner B. Power supply tester C.-- Multimeter D. Paper clip

Correct: Use a multimeter to test the AC adapter's output voltage. Incorrect: An induction toner enables you to locate specific network cables, often inside a wiring closet. A power supply tester enables you to test a power supply when it's not plugged into a computer—a handy device, but not for testing an AC adapter. While you might be successful testing with a paper clip, it's probably not a good idea!

Paul has just finished landing a major order. He needs to get this order to the main office over a thousand miles away. This order is massive and contains a tremendous amount of highly sensitive data. What's the best way for him to send this data? A.-- VPN B. Dial-up C. E-mail attachment D. Dedicated T1

Correct: VPN. A Virtual Private Network can use the Internet to send the data cheaply, with good security, and at a relatively fast speed. Incorrect: Dial-up is very slow. Dedicated T1 is very expensive E-mail attachments have no security

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? A.Pause B.Restart-- C.Start D.Open

Correct: You would press the Restart option. Incorrect: 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.