Comptia Core 1
Which of the following DC voltages are not found within a printer when the laser printer converts AC power into DC power for use? -24 VDC +24 VDC -5 VDC +5 VDC
-24 VDC The DCPS converts 115VAC or 220VAC power into +5 VDC and -5 VDC for use by the printer's logic board, and +24 VDC to power the motors that feed the paper through the printing path in the last printer.
Your company's printer is displaying an error of "Replace cartridge 1. Filament is empty." Based on this error, what kind of printer is your company using? Inkjet Thermal Impact Laser 3-D
3-D printers use a filament to create the objects being printed. A 3D printing filament is a thermoplastic feedstock for fused deposition modeling by 3D printers. There are many types of filament available with different properties, requiring different temperatures to print the final product or object. On the exam, you should be thinking about a 3D printer anytime you see the word filament. An inkjet cartridge is used with an inkjet printer. Toner is used with a laser printer. Ribbon is used with an impact printer. Ribbon or special thermal paper is used with a thermal printer.
RDP (Remote Desktop Protocol)
3389 : Provides a full graphical user interface
Which cellular technology is comprised of HSPA+ and EV-DO to provide higher data speeds than previous cellular data protocols? LTE 4G 3G 5G
3G cellular technology is made up of two different technologies: HSPA+ and EV-DO. HSPA+ (Evolved High-Speed Packet Access) is a 3G standard used for GSM cellular networks and can support up to a theoretical download speed of 168 Mbps and a theoretical upload speed of 34 Mbps. In the real world, though, HSPA+ normally reaches speeds around 20 Mbps. EV-DO (Evolution-Data Optimized) is a 3G standard used for CDMA cellular networks and can support up to 3.1 Mbps downloads.
Which of the following statements about the 5.0 GHz wireless frequency used by Wi-Fi is correct? A.) The 5.0 GHz frequency has more channels available than 2.4 GHz B.) The 5.0 GHz freq. is more effective at penetrating solid surfaces than the 2.4 GHz C.) The 5.0 GHz freq. has shorter wavelength that allows the signal to travel further than 2.4 GHz using the same power levels. D. The 5.0 GHz freq. supports lower data rates than 2.4 GHz
5.0 GHz freq. has more channels than the 2.4 GHz
Which of the following network standards allows a networking device to provide up to 15.4W of power to a connected device? 802.3af 802.11ac 802.3at 802.11s
802.3af (The 802.3af (PoE) standard can support up to 15.4W of power at a distance of up to 100 meters)
What type of connector provides power to an internal hard drive from the computer's power supply using a 4-pin connector? SATA Thunderbolt Molex SCSI
A Molex connector provides DC power to the various drives inside a computer case. Molex and Mini-Molex are both 4-pins connectors, with Mini-Molex only being used to support floppy disk drives.
Which of the following types of networking hardware is used to deliver broadband internet access using a hybrid fiber-coaxial (HFC) infrastructure? Digital Subscriber Line optical Network terminal Software-defined networking Cable modem
A cable modem is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fiber-coaxial (HFC), radio frequency over glass (RFoG), and coaxial cable infrastructure. Cable modems are primarily used to deliver broadband internet access as cable internet, taking advantage of an HFC and RFoG network's high bandwidth.
What type of cloud model would allow the sharing of resources by multiple organizations to create a service that benefits all of its members? Community Cloud Private Cloud Hybrid Cloud Public Cloud
A community cloud in computing is a collaborative effort in which infrastructure is shared between several organizations from a specific community with common concerns, whether managed internally or by a third party and hosted internally or externally. Hybrid form of private cloud.
You work as a PC Technician for a real estate company. The company has decided to use laptops instead of desktops in the office so that the real estate agents can easily take their laptops with them when they leave to show properties for sale. You want to create an easy solution for the agents to quickly connect an external monitor, keyboard, mouse, a wired network connection, and an additional hard drive for storage to the laptop whenever they come back into the office. Unfortunately, the laptops used by the agents don't have a built-in wired network connection. Which type of device should you choose to provide all the functionality above?
A docking station is a sophisticated type of port replicator designed to provide additional ports (such as network or USB) and functionality (such as expansion slots and drives) to a portable computer when used at a desk
The projector in the Dion Training conference room is creating a distorted image when in use. The technician measures the top of the screen at 72" wide and the bottom of the screen at only 66" wide. The technician checks the projector's resolution and the resolution in the operating system's display settings. They notice that they are both set correctly to HDTV (1920 x 1080) mode. Which of the following settings on the project should the technician adjust to fix this distortion? Keystone Color depth Contrast Brightness
A keystone effect occurs when the top of a projected image is wider or narrower than the bottom of the image. This creates a trapezoid instead of a rectangular image and leads to distortion.
You work for the city's Department of Motor Vehicles (DMV). There are five DMV locations spread out across the city that you have been asked to connect with a network. You have created a list of requirements for this network, including that it must be wired and support at least 1 Gbps of bandwidth. Which of the following network types would MOST likely be used for the DMV to connect their internal networks across the city securely? LAN MAN WAN PAN
A metropolitan area network (MAN) is a computer network that interconnects users with computer resources in a geographic region of the size of a metropolitan or city area.
When using a Type 1 hypervisor virtualized environment, which of the following hardware types is necessary to connect the VMs to the corporate network? Virtual NIC VNC VDI VPN
A virtual machine includes a virtual NIC. A virtual NIC is a type of virtual adapter that can be configured on logical partitions to provide a network interface
Dion Consulting Group is working with a new laptop manufacturer. The manufacturer wants to create the thinnest and lightest laptops in the world. To do this, they need to choose the right technology for their displays. Which technology should Dion Consulting recommend to allow for the thinnest laptop displays? LCD OLED LED IPS
An OLED display works without a backlight because it emits visible light. Thus, it can display deep black levels and be thinner and lighter than a liquid crystal display (LCD).
A technician at Dion Training is troubleshooting an issue with a workstation. The technician believes that the power supply needs to be replaced based on the symptoms they observed. Which of the following symptoms did the technician likely observe to lead them to this conclusion?
Burning Smell / A burning smell is indicative of a bad power supply. A foul odor is indicative of a distended capacitor. The incorrect date/time on the workstation is indicative of a dead CMOS battery. Hardware failure or system instability can cause the computer to reboot continuously. The problem could be the RAM, hard drive, power supply, graphics card, or external devices. Based on the symptoms of a continuous reboot, the supervisor likely suspected the RAM as the cause of the issue
You connect a VOIP device on a user's desk and need to connect it to a PoE-enabled switch located in a communications closet about 150 feet (approximately 50 meters) away. Which of the following cables should you select to connect the VOIP device to the switch? CAT 3 Coaxial Fiber CAT 6
CAT 6 / VOIP (Voice over IP) devices that rely on PoE (Power over Ethernet) should use a CAT 5e, CAT 6, or higher cable to make the connection. This allows a single cable (CAT 5e or CAT 6) to carry both the data and the device's power.
Which of the following types of optical discs can only support storing up to 700 MB on a single piece of media? CD-RW DVD-R BD-R SD
CD-RW / A CD can store up to 700 MB. A DVD can store 4.7 GB for a single-layer disc or 8.5 GB for a dual-layer disc. A Blu-ray disc can store up to 25 GB for a single-layer disc or 50 GB for a dual-layer disc.
An employee's workstation will operate for a short period of time, but then it unexpectedly shuts down. When you check the workstation, you hear the hum of the cooling fans. What is most likely the issue? Defective case fan GPU overheated Defective NIC card CPU overheated
CPU overheated If a computer's CPU becomes overheated, the system will unexpectedly shut down the computer to protect the processor from damage
Dion Training wants to install a network cable to run a television signal between two buildings. Which of the following cable types should it utilize? Fiber Shielded Plenum Coaxial
Coaxial / A coaxial cable is a cable used to transmit video, communications, and audio. A coaxial or coax cable is most commonly used as a cable to connect a TV to a cable TV service. Coaxial cables are a specialized type of copper cabling that uses a copper core to carry the electrical signal while being enclosed by plastic insulation and shielding to protect the data transmission from the effects of electromagnetic interference (EMI).
Susan, a computer technician, received a complaint from a client about an issue with their laptop. Based on the symptoms observed, she believes that there is an issue with the laptop's memory. Which of the following symptoms was MOST likely observed during their troubleshooting? POST code beeps Incorrect time in the BIOS Continuous reboots Distended capacitor
Continuous reboots / A bad or faulty RAM module can cause system reboots, diminished system performance, and slow loading of websites and programs.
Which of the following components would require you to de-solder the old part from the laptop to install and solder in a new one? Battery Screen DC jack Cellular card
DC Jack / It is relatively common for the DC jack to fail over time. The DC jack can become loose over time, or the jack itself can become separated from the motherboard. Replacing a DC jack requires disassembling the laptop, de-soldering and removing the old jack, then soldering the new jack into place
Which of the following cloud services should an organization choose in order to deliver virtual desktops to end-users over the Internet on a per-user license basis? DaaS PaaS (complete development and deployment environment in the cloud, with resources that enable you to deliver everything from simple cloud-based apps to sophisticated, cloud-enabled enterprise applications) IaaS (a type of cloud computing service that offers essential compute, storage, and networking resources on-demand, on a pay-as-you-go basis) SaaS
Desktop as a Service (DaaS) is a cloud computing offering where a service provider delivers virtual desktops to end-users over the Internet, licensed with a per-user subscription.
What type of connector is used to terminate a coaxial cable? RJ-45 F-Type DB-9 RJ-11
F - Type connector is used with coaxial cables. (RJ-45 is used to terminate a copper twisted-pair Ethernet cable) (DB-9 connector is used to terminate an RS-232 serial cable) (An RJ-11 connector is used to terminate cables used for phone lines.)
What ports do FTP and SFTP utilize? 20,21 22,23 21,23 21,22
FTP (File Transfer Protocol) uses ports 20 and 21. SPFT (Secure File Transfer Protocol) uses port 22.
A client reports that their workstation is continually crashing when using certain applications on their Windows system. The system will stop working and display a BSOD error on the screen. Which of the following is the most likely cause of this BSOD error? Failure of the graphics card Failure of the power supply Failure or corruption of the memory Failure of the processor
Failure or corruption of the memory
Jason is teaching a CompTIA course at a large company, but they do not allow non-employees to connect to their network. Since Jason needs the Internet for an in-class demonstration, he connects his laptop to his iPhone over Wi-Fi and essentially connects to the Internet using the smartphone as a modem. Which of the following terms best describes this configuration? Baseband update Tunneling Hotspot USB tethering
Hotspot / A portable hotspot is a dedicated mobile device that connects to a cellular network and provides a wireless (Wi-Fi) network for a small number of users.
A computer technician is building a server that will run multiple virtual machines simultaneously. Which CPU technology should be selected so that the processor can utilize two logical cores? Multi-core processor Hyperthreading 32-bit CPU Dedicated GPU
HyperThreading (HT) is an Intel CPU architecture implemented to expose two or more logical processors to the OS to deliver performance benefits. This allows the system to run multiple cores for each operating system in a virtualized environment.
You have been asked to fix an old computer whose CD-ROM has stopped working. The CD-ROM drive is using a 40-pin ribbon cable, and you suspect the cable is defective. Which cable should you buy to replace the cable? IDE SATA USB eSATA
IDE / An IDE (Integrated Drive Electronics) cable is an older cable interface that used to be used for the transmission of data between the motherboard and various internal devices like hard drives and CD-ROM drives.
You have been asked to set up the corporate email on several mobile devices for Dion Training's employees. The employees will use their mobile devices to check their email when out of the office, but they will also need to check their email from their desktop computers. Which of the following email protocols should you configure to allow the employees to receive their mail and maintain the read/unread status across all of their devices? POP3 SMTP IMAP HTTPS
IMAP (You should configure IMAP because it will leave the email on the server and allow for synchronizing the mail to all devices, including each email's read state.)
You are trying to select the best device to install to proactively stop outside attackers from reaching your internal network. Which of the following devices would be the BEST for you to select? A.) IDS B.) IPS C.) Proxy D.) Syslog Server
IPS/Intrusion Prevention System (An intrusion prevention system (IPS) is a form of network security that detects and prevents identified threats.)
An auto mechanic needs to purchase a new printer for their shop. The printer will be used to create estimates and invoices for their customers. The printer must support the ability to create duplicate invoices using multiple sheets of paper separated by carbon paper using tractor-fed paper. Which of the following types of printers should be used? Inkjet Thermal Laser Impact
Impact / An impact or dot-matrix printer is an older type of printer that works by pressing a ribbon of ink onto the top sheet of paper using a series of dots. This is called an impact printer because it pushes the ribbon against the paper to create the image or text using a series of dots to create the image or text.
Which of the following Wi-Fi channels in the 2.4 GHz frequency band are only supported in Europe and Japan due to government regulations? 11 1 6 13
In the United States and Canada, only channels 1 through 11 may be used. In Europe, channels 1 through 13 may be used. In Japan, channels 1 through 14 may be used.
What type of cloud service provides instant access to servers and switches, quickly provisioned, and available for management over the internet? SaaS IaaS DaaS PaaS
Infrastructure as a service (IaaS) is an instant computing infrastructure, provisioned, and managed over the internet. Infrastructure as a Service (IaaS) is a cloud computing service that enables a consumer to outsource computing equipment purchases and running their own data center. IaaS quickly scales up and down with demand, letting you pay only for what you use. It helps you avoid the expense and complexity of buying and managing your physical servers and other data center infrastructure. Each resource is offered as a separate service component, and you only need to rent a particular one for as long as you need it
You work as a computer technician for a production company that travels worldwide while filming and editing music videos. Due to the nature of video editing, you will be building a video production workstation for the company that will have the maximum amount of RAM, an 8-core CPU, a dedicated GPU, and a redundant array of solid-state devices for storage. You are now determining which power supply to install in the system. What is the MOST important characteristic to consider when choosing a power supply? Efficiency rating Number of SATA connectors Input voltage Amperage of 12V rail
Input Voltage / This computer will be traveling worldwide, and the most important consideration will be the input voltage.
You are working on a customer's laptop. The image on the display suddenly becomes very dark and hard to see. You attempt to adjust the brightness and contrast of the laptop's display using the special function keys, but this doesn't brighten the display much. You pull out a bright flashlight and can see the image displayed a little better when using it. Which of the following components is MOST likely faulty and needs to be replaced? Inverter Digitizer GPU LCD Panel
Inverter (The inverter (also known as inverter board, screen inverter, or LCD inverter) is a part of the laptop's display assembly.)
You are attempting to troubleshoot a computer for a user. When you attempt to turn on the computer by pressing the power button, the computer turns on, and the fan spins normally. There is no output displayed on the screen from the PCIe x16 video card. You turn off the computer, remove the processor and the memory, and attempt to power on the computer again. During the boot-up sequence, you do not hear any POST beep codes, but the fans still spin normally. Which of the following is the MOST likely because of his issue? Power supply's voltage switch is set to 240V, but the power outlet is providing 110V. Power supply wattage is to low for the components in the computer The MB has failed and needs to be replaced. CMOS battery needs to be replaced.
It appears that the power supply is not providing enough wattage to all the components of the computer, which is why the fans are spinning (they use low wattage) while the rest of the system fails to boot.
Which of the following is NOT considered part of the Internet of Things SCADA ICS Smart Television Laptop
Laptop / Supervisory control and data acquisition (SCADA) systems, industrial control systems (ICS), internet-connected televisions, thermostats, and many other things examples of devices classified as the Internet of Things (IoT)
What is used to distribute traffic across multiple sets of devices or connections to increase the overall efficiency of the network and its data processing? Traffic shaping Fault tolerance High availability Load balancing
Load balancing refers to the process of distributing a set of tasks over a set of resources to make their overall processing more efficient. Load balancing can optimize the response time and avoid unevenly overloading some compute nodes while other compute nodes are left idle
You and your friends are hanging out in a bar downtown and notice that the entire area around the bar has a great wireless network called "Downtown Metro." This wireless network was built by the city and currently covers about 5 square blocks of the downtown area. What type of network best classifies this wireless network? WAN PAN MAN LAN
MAN (Metropolitan Area Network) A computer network that interconnects users with computer resources in a geographic region of the size of a metropolitan or city area.
Dion Training has just installed a brand new email server. Which of the following DNS records would need to be created to allow the new server to receive email on behalf of diontraining.com? CNAME MX PTR A
MX (An MX record is used for outgoing (SMTP) and incoming (POP3/IMAP) traffic.)
Using the image of the motherboard above, which of the following correctly indicates the circled area? CMOS Battery Mini PCIe AGP CPU Slot
Mini PCIe / The area circled indicates the Mini PCIe slot. Mini PCIe (mPCIe) are smaller form factor versions of standard PCI Express expansions cards used with laptops and other small form factor computing devices.
On Tuesday evening, the company just pushed a new Windows 10 security update to all of its workstations. On Wednesday morning, the help desk receives numerous complaints about the network being slower than normal. Previously, the network was baselined at 1 Gbps as each workstation uses a wired CAT 6 connection. Today, a technician ran a speed test and saw the network was only reaching speeds of 100 Mbps. Which of the following is the MOST likely cause of the network slowdown? Network was reconfigured from DHCP to static Network card drivers were updated last night Incorrect DHCP server configuration is being used The incorrect DNS server configuration is being used
Often, security updates, patches, and upgrades will reconfigure a network card's drivers during a Windows security update. If this happens, the system may revert to a more generic version of the driver, decreasing speeds from 1 Gbps to 100 Mbps.
What type of expansion bus technology uses lanes with point-to-point communication paths between two components on the motherboard? PCIe PCI-X PCI AGP
PCIe (Peripheral Component Interconnect Express) uses lanes between any two intercommunicating devices. This utilizes a separated pair of wires for both directions of traffic. This increases the bus lanes' speed since there is no possibility of collisions or waiting for other devices to finish communicating. PCIe (peripheral component interconnect express) is an interface standard for connecting high-speed components.
You have been asked to set up the email on a corporate laptop. The employees of Dion Training are only allowed to receive their email on one device. The email should be removed from the server's mailbox whenever the client connects to the server to download the messages. Which of the following mail protocols should you configure to allow an employee to receive their mail on their laptop and meet these requirements? HTTPS IMAP POP3 SMTP
POP3 / You should configure POP3 because the mail is downloaded to the device and removes mail from the server's mailbox by default.
Which of the following is used when a CDMA smartphone attempts to connect to the cellular network while traveling? Baseband PRL Firmware PRI
PRL / PRI The PRI and PRL must be updated and referenced when traveling. The preferred roaming index (PRI) is an index that works with the PRL to provide the best data/voice quality to a phone while roaming. The preferred roaming list (PRL) is a database built by CDMA service carriers to indicate which radio bands should be used when connecting to a cell tower.
POP3 (Post Office Protocol Version 3)
Port 110 : Used for receiving incoming emails
NetBIOS (Network Basic Input/Output System)
Port 137-139 : Used for file or printer sharing in a Windows network
IMAP (Internet Message Access Protocol)
Port 143 : A newer method of retrieving incoming emails which improves upon the older POP3
SQL (Structured Query Language)
Port 1433 : A tool for organizing, managing, and retrieving archived data from a computer database.
SNMP (Simple Network Management System)
Port 161/162 : Used to collect data about network devices and monitor their status
FTP (File Transfer Protocol)
Port 20, 21 A protocol used to move files and folders over a network or the Internet.
SFTP (Secure File Transfer Protocol)
Port 22 Provides file access, file transfer, and file management over any reliable data stream
SSH (Secure Shell Protocol)
Port 22 : Provides secure remote control of another machine using a text-based environment
Telnet
Port 23 : Provides insecure remote control of another machine using a text-based environment
SMTP (Simple Mail Transfer Protocol)
Port 25 : Provides the ability to send emails over the network
LDAP (Lightweight Directory Access Protocol)
Port 389 : Used to provide directory services to your network
HTTPS (Hyper Text Transfer Protocol)
Port 443 : Used for insecure web browsing
SMB (Server Message Block)
Port 445 : Used for windows file and printer sharing services
DNS (Domain Name System)
Port 53 : Converts domain names to IP addresses, and IP addresses to domain names
DHCP (Dynamic Host Configuration Protocol)
Port 67 & 68: A network service that provides automatic assignment of IP addresses and other TCP /IP configuration information.
HTTP (Hypertest Transfer Protocol)
Port 80 : Used for insecure web browsing
You are troubleshooting a Dell laptop for a customer, and you see a blank screen during boot up. You decide to plug in an external monitor to the laptop and reboot it again, but the blank screen persists. What should you attempt next? Reboot Laptop Reboot into BIOS and ensure the display is enabled Press Fn + F8 Press CTRL + ALT + ESC
Press Fn + F8
What printer concept is a page description language that produces faster outputs at the expense of quality? Internet Printing Protocol PostScript Line printer Daemon Printer control language
Printer Control language (Both the printer control language (PCL) and PostScript (PS) are page description languages, but PCL produces faster outputs that are of lower quality. The printer control language (PCL) is a page description language used to tell printers how to properly layout and print the contents of a document on a page)
Your office has a legacy wide-format printer that must be connected to your network. The connection on the printer is an older DB-9 serial connection. What is the BEST option for connecting this legacy device to your corporate network? Configure a reverse proxy on the printer as a DNS workaround Purchase an RS-232 to RJ-45 adapter so that you can connect it to the network Purchase a wireless print server and connect it to the printer via USB Purchase an inexpensive RS-232 to USB adapter to connect to the network
Purchase an RS-232 to RJ-45 adapter to that you can connect it to the network
You are troubleshooting a video editing workstation for Dion Training that will not boot. After running diagnostic tests on the system, you determine that one of the four hard disks in the workstation's RAID 0 array has failed. To prevent this from occurring in the future, which type of RAID should you configure that would provide the best performance and redundancy for this video editing workstation? RAID 1 Utilizes two hard drives RAID 10 Utilizes four hard drives RAID 5 Utilizes four hard drives RAID 0 Utilizes four hard drives
RAID 10 Utilizes four hard drives
Which of the following types of connectors are used to terminate a CAT 5e network cable?
RJ-45 refers to a cable termination specification that specifies physical male and female connectors and the pin assignments of data jacks that can be used for networks and VOIP telephone cables. RJ-45 is an 8-pin/8-position plug or jack commonly used to connect computers onto Ethernet-based local area networks (LAN) and consists of two wiring schemes: T568A and T568B.
You have been asked to recommend a RAID for use in a video editing workstation. The workstation must be configured to allow the highest speed operation and use 100% of the available drive free space. The workstation has no requirement for redundancy within this configuration. Which configuration do you recommend? Raid 0 Raid 1 Raid 5 Raid 10
Raid 0
Which of the following is a security concern with using a cloud service provider and could result in a data breach caused by data remnants? Resource Pooling Metered services Rapid elasticity On-Demand
Rapid elasticity / Rapid elasticity can be a security threat to your organization's data due to data remanences. Data remanence is the residual representation of digital data that remains even after attempts have been made to remove or erase it. So, when a cloud resource is deprovisioned and returned to the cloud service provider, it can be issued to another organization for use. If the data was not properly erased from the underlying storage, it could be exposed to the other organization.
Which button on a desktop computer begins a reboot of the computer without power being removed from the computer's components? Power Suspend Hibernate Reset
Reset / The reset button is usually located on the front panel of a desktop computer next to the power button. When the reset button is pressed, it allows the user to reboot the computer without releasing power from the system's components.
Which of the following types of networking hardware is used to connect two dissimilar networks such as connecting a local area network (LAN) to the wide area network (WAN)? Managed switch Router Access point Hub
Router / A router is a network device that links dissimilar networks and can support multiple alternate paths between locations based upon the parameters of speed, traffic loads, and cost. Routers are used to logically divide networks into subnets.
Dion Training just installed a file server in VLAN 101 and their user workstations in VLAN 102. The users are unable to access the new file server from their workstations. Which of the following devices needs to be installed to allow users in VLAN 102 to access the resources in VLAN 101? Router Wireless access point Hub Unmanaged switch
Router / A router or other gateway device must be installed between two VLANs to allow connections to be routed between them. A Virtual LAN (VLAN) is a logically separate network that is created using switching technology. Even though hosts on two VLANs may be physically connected to the same cabling, local traffic is isolated to each VLAN so they must use a router to communicate.
Which type of cloud service provides users with an end-to-end application solution for a recurring monthly or yearly fee? SaaS IaaS PaaS DaaS
SaaS = Software as a service (or SaaS) is a way of delivering applications over the Internet as a service
Several users at an adjacent office building report intermittent connectivity issues after a new flag pole was installed between the two offices. The network technician has determined the adjacent office building is connected to the main office building via an 802.11ac bridge. The network technician logs into the AP and confirms the SSID, encryption, and channels are all correct. Which of the following is MOST likely the cause of this issue? Signal attenuation Bandwidth saturation DHCP exhaustion Incorrect antenna type
Signal attenuation / The most likely reason is signal attenuation from the new flag being placed between the signal path which may be obstructing the line-of-sight between the antennas. Based on where the flag is precisely located, it is possible to only block the signal when the wind is blowing in a certain direction
Which of the following types of networking hardware is used to create network infrastructures within the cloud? Optical network terminal Software-defined networking Digital subscriber line Cable modem
Software-defined networking / Software-defined networking (SDN) is an approach to network management that enables dynamic, programmatically efficient network configuration to improve network performance and monitoring, making it more like cloud computing than traditional network management. Software-defined networking (SDN) uses Application Programming Interfaces (API) and compatible hardware that allows for the programming of network appliances and systems.
You are configuring a print server on the network. Which type of IP address should you configure it with? Dynamic IP addresses APIPA Link-Local Static IP address
Static (A static IP address should be used for servers to ensure they are easy to find, access, and manage on the network
Jason is teaching a CompTIA course at a large company, but they do not allow non-employees to connect to their network. Since Jason needs the Internet for an in-class demonstration, he connects his laptop to his iPhone using a USB cable. He essentially connects to the Internet using the smartphone as a modem. Which of the following terms best describes this configuration? A. ) Hotspot B. ) Baseband update C. ) Tunneling D.) Tethering
Tethering (Tethering is the use of a mobile device's cellular data plan to provide Internet access to a laptop or PC.)
What command is used to test if your own network card's driver is working properly? Ping 8.8.8.8 Ping 1.1.1.1 Ping 127.0.0.1 Ping 192.168.1.1
The IP Address 127.0.0.1 is a localhost IP for testing your network interface card (NIC). This IP address is reserved for use with a loopback test. If there is no communication of the return packet, this indicates the network card is faulty, the cable/loopback is loose, or there is bad wiring of the loopback plug
Which of the following locations are you likely to find the antenna wires located within a laptop or mobile device? Laying on top of the battery Connected externally via USB Located under the keyboard Positioned around the display panel
The antenna wires for the wireless cards and cellular radios are usually routed around the screen within the casing of the laptop or mobile device
Which of the following describes the IP address of a router to which packets destined for a remote network should be sent by default? Dynamic IP Static IP Subnet Mask Gateway
The default gateway parameter is the IP address of a router to which packets destined for a remote network should be sent by default. This setting is not required, but if you do not have one included, your network traffic can never leave the local area network.
Which of the following statements about the 5.0 GHz wireless frequency used by Wi-Fi is correct? 5.0 GHz freq. is less effective at penetrating solid surfaces than 2.4 GHz 5.0 GHz freq. has shorter wavelength that allows the signal to travel further than 2.4 GHz 5.0 GHz freq. has fewer channels available than 2.4 GHz 5.0 GHz freq. supports lower data rates than 2.4 GHz
The longer wavelength of 2.4 GHz makes it better at propagating through solid surfaces than the 5.0 GHz frequency.
Jennifer just moved from France to the United States. She unpacks her computer and plugs it into the wall using a power adapter to ensure the plug connects properly. When she tries to power on the computer, the screen remains blank, she doesn't hear the fans spinning, and nothing appears to be happening. What is MOST likely the problem? The power supplys output is set to 115V The power supplys input is set to 220V The power supplys output is set to 220V The power supplys input is set to 115V
The power supplys input is set to 220V
What is the simplest and most cost-efficient way to allow other network users to access a printer if the printer does not have an RJ-45 or WiFi adapter available? Establish a print share on the local host Establish a printer share on the network switch Order a printer port converter to share a non-networked printer Order another printer with network capabilities and share it on the network
The simplest and most cost-efficient way to share a printer is to share the printer via the local host and allow sharing across everyone to access the printer
Which of the following components of a color laser printer is used to combine the 4 colors before printing them to the paper in one pass? Transfer roller Duplexing assembly Pickup roller Transfer belt
The transfer belt is the component in a color laser printer that combines the 4 colors before printing it to the paper in one pass
Tony, a system administrator, set up a printer on John's workstation. During the setup, Tony was able to print a test page. Later, when John attempted to print a document, an error message was displayed that indicates access was denied to the printer. John tried to restart the printer and workstation, but the same error message is displayed when he attempts to print a document. Which of the following MOST likely caused this issue? The user lacks adequate security permissions to the printer The printer lacks the memory required to process the document The printer is offline The print spooler is hung and must be restarted
The user lacks adequate security permissions to the printer
Your friend just gave you his old laptop. Whenever you turn on the laptop, though, a blank screen appears and asks you to enter an administrative password before the computer attempts to boot up. Unfortunately, your friend never gave you the password for this laptop. Which of the following actions should you take to resolve this issue and get past this password screen? Disconnect the hard drive from the motherboard for a few minutes, reconnect it, then power on the laptop Press and hold the power button down for a few minutes, then attempt to power on the laptop Remove the CMOS battery, wait a few minutes, reinsert the battery, then power on the laptop Remove the laptops battery, wait a few minutes, reinsert the battery, and then power on the laptop
This blank screen asking for the administrative password appears to be a BIOS password required to be entered before the laptop is allowed to boot from the hard disk. Your best option is to clear the CMOS forcibly to remove the BIOS password from a workstation or laptop. To clear the CMOS, you must remove the CMOS battery from your computer, wait a few minutes, reinsert the CMOS battery, and then attempt to power on the computer again.
What is Connector C? F SC LC ST
This is an LC connector. A ST, SC, LC, or MTRJ connector is used to terminate a fiber optic cable. An LC, or Lucent connector, is a small form factor connector that combines the transmit and receive cables into a single square, snap-in connector.
What is connector B? F SC LC ST
This is an ST connector. A ST, SC, LC, or MTRJ connector is used to terminate a fiber optic cable. An ST, or straight tip, connector is a quick-release bayonet-style connector that has a long cylindrical connector.
Your company uses a virtual desktop infrastructure (VDI) environment for employees to access their desktop applications. To allow employees access to the VDI environment, the company is installing thin clients in each employee's office. Which THREE of the following tasks must you first complete to install a thin client for a new employee? Install Operating System Install latest Security patches. Install the necessary applications. Connect the thin client to the network. Connect the device to the second monitor.
To set up a thin client, you will first connect it to the network, update its security software, and then install/configure any applications needed to access the VDI environment.
Your company has decided to upgrade its legacy phone system to use VoIP devices instead. The new phones will download the configurations from a server each time they boot up. Which of the following ports needs to be opened on the firewall to ensure the phones can communicate with the TFTP server and download their boot-up configurations? 21 53 161 69
Trivial File Transfer Protocol (TFTP) is a simple protocol that provides a basic file transfer function with no user authentication. TFTP uses port 69 to communicate.
Which of the following types of USB connections can support data rates of up to 480 Mbps? USB 1.1 USB 2.0 USB 1.0 USB 3.0
USB 2.0 can support data rates up to 480 Mbps. Universal serial bus (USB) is the main type of connection interface used on desktops and laptops. A larger Type A connector attaches to a port on the host; Type B and Mini- or Micro-Type B connectors are used for devices. USB 1.1 supports 12 Mbps while USB 2.0 supports 480 Mbps and is backward compatible with 1.1 devices which run at a slower speed. USB devices are considered hot-swappable and each device can draw up to 2.5 W of power over a USB port. USB 3.0 and 3.1 define 5 Gbps (SuperSpeed) and 10 Gbps (SuperSpeed+) rates and can deliver up to 4.5 W of power.
Which of the following types of USB connections can support up to 4.5 watts of power per connected device? USB 2.0 USB 1.1 USB 1.0 USB 3.0
USB 3.0 / USB 3.0 can support providing up to 4.5 watts of power per connected device. Universal serial bus (USB) is the main type of connection interface used on desktops and laptops.
You are connecting a laptop to a brand new digital high definition TV. Unfortunately, the laptop is a little outdated and only has an analog display output. Which of the following adapters could you use to convert the signal from analog to digital for use with the new television? DVI-D to HDMI S-Video to RCA HDMI to VGA VGA to DVI-D
VGA to DVI-D / Since this question asks you to select the converter that can convert a signal from analog to digital, you need to consider which of the connectors are analog and digital. S-Video, RCA, and VGA are all analog. HDMI and DVI-D are both digital. Therefore, the correct answer is VGA (analog) to DVI-D (Digital). HDMI to VGS would be digital to analog. S-Video to RCA would be analog to analog. DVI-D to HDMI would be digital to digital.
Which of the following is the MOST dangerous type of threat when using virtualization? VM Escape VM Sprawl Virtual NIC duplication Rogue VM
VM escape refers to malware running on a guest OS jumping to another guest or the host. As with any other software type, it is vital to keep the hypervisor code up-to-date with patches for critical vulnerabilities.
Which of the following is the virtualization technology supported by most modern Intel processors? AMD - V Intel - V HT VT
VT / To use virtualization and have virtual machines running on a single workstation, you need to have a CPU specifically designed to support virtualization. For Intel processors, they must support VT or Virtualization Technology.
A client's laptop appears to have been infected with malware. You have begun troubleshooting, established a plan of action, and have already implemented your proposed solution. According to the best practice troubleshooting methodology, what is the NEXT step you should take? Test the theory to determine the cause. Document findings, actions, and outcomes. Verify full system functionality. Identify the problem.
Verify full system functionality / (1) Identify the problem. (2) Establish a theory of probable cause (question the obvious). (3) Test the theory to determine the cause. (4) Establish a plan of action to resolve the problem and then implement the solution. (5) Verify full system functionality and, if applicable, implement preventative measures. (6) Document findings, actions, and outcomes.
You just replaced a failed motherboard in a corporate workstation and returned it to service. About an hour later, the customer complained that the workstation is randomly shutting down and rebooting itself. You suspect the memory module may be corrupt, and you perform a memory test, but the memory passes all of your tests. Which of the following should you attempt NEXT in troubleshooting this problem? Reset the BIOS Replace the RAM with ECC modules Remove and reseat the RAM Verify the case fans are clean and properly connected
Verify the case fans are clean and properly connected
Which of the following network configurations on a virtual machine are used to prevent the VM from accessing the internet, but still allow it to communicate with other VMs on the host and the host itself? Private External Localhost Internal
Virtual machines can have their network configured as internal to prevent them from communicating with the internet. When configured to internal, the VMs can communicate with each other and the host machine.
Dion Training has recently purchased a new wireless printer and has asked you to configure it in their office. You have installed the necessary printer drivers on your workstation and have plugged the printer into the power outlet. You just configured the printer to connect to the guest wireless network. Next, you try to print a test page, but nothing prints out. Which of the following is the most likely cause for the printer not printing the test page? You didn't configure the printer to use the Internet Printing Protocol (IPP) You didn't enable DHCP on your workstation You forgot to configure your workstation as a print. server You connected the printer to the guest wireless network instead of the corporate wireless network.
You connected the printer of the guest wireless network instead of the corporate wireless network / Most corporate wireless networks are configured as two separate networks: one for the corporate wireless network traffic and another for any guests that might connect to the wireless network while visiting your offices. These two wireless networks are isolated from each other, so if you connect the printer to the guest wireless network then the workstations will be unable to reach the printer and print out any documents or test pages.
