Review for Quiz 3.1 through 3.7

Which of the following is the maximum data transfer speed for USB 3.2 Gen 2 devices?

10 Gbps

Dual-channel memory systems only theoretically double memory bandwidth. What is the bandwidth increase in actual terms?

5-15%

Which type of RAM might slow system performance because it holds memory addresses and data to improve stability on systems with more than 1 GB of RAM before being transferred to the memory controller?

Buffered

When booting your workstation, you hear a series of audible beeps, and the system locks up. What is the FIRST step you should take when troubleshooting this issue?

Check the motherboard documentation for POST errors.

As a network engineer, you have been creating patch (straight-through) cables for a network switch. You have plugged in all the cables and are testing data transmission through the cables. You notice that the data transmission is not functioning properly in some of the cables, and you are sure that one of the cables is interfering with the transmission at the near end. What is this type of interference called?

Cross-talk interference

What are the advantages of DDR3 over DDR2, assuming the same operating frequency? (Select two.)

DDR3 uses less power than DDR2. DDR3 doubles the data transfer rate of DDR2.

When you turn on your workstation, you immediately hear a grinding noise coming from inside the computer case. Which of the following are the MOST likely causes of this noise?

Dust buildup that needs to be cleaned. An uneven case surface that causes fan blade and motor noise.

Which type of software-generated problems can indicate that a software bug is causing a memory error? (Select three.)

Exception error Page fault General-protection fault

Which function does a motherboard's chipset perform?

Facilitates communication between the processor, memory, and peripheral devices.

What is a major benefit STP provides that UTP does not?

Greater resistance to interference

Which of the following objects is installed between the back side of the system case and the motherboard's ports?

I/O shield

After installing two memory modules, you power on the system to check for errors. You find that the BIOS program recognizes only one of the memory modules. Which of the following is BEST to try first when troubleshooting this issue?

Make sure that both modules are seated properly in their slots.

Which type of USB 3.0 connector is shown here?

MicroUSB

You are in the process of configuring a new computer. The motherboard has four memory slots and supports dual-channel memory. You install two memory modules. When you boot the computer, the BIOS recognizes both modules, but the memory is not configured to run in dual-channel mode. What should you do to resolve the issue?

Move the modules to the correct motherboard slots.

A technician connects two network switches using a twisted-pair crossover cable. Which of the following identifies the wiring standard required on each end of the crossover cable?

One end must be T568A, and the other must be T568B.

How many memory modules do you need to install at the same time in order to operate your computer in quadruple-channel memory mode?

Sets of four

You have just finished replacing the motherboard in your friend Ethan's computer with the same type of motherboard that the computer had originally. You tested the motherboard by powering it on and by verifying that the operating system started and that the applications work. Now Ethan is complaining that his computer no longer recognizes his external hard drive, which he had connected to the previous motherboard. Which of the following is MOST likely causing the external hard drive not to function?

The USB front panel connector was not properly connected.

Which of the following situations is MOST likely to justify an investment in a Cat 6a cable instead of a Cat 6 cable?

The work area has a lot of electromagnetic interference (EMI).

Which connector on a computer is used to attach a mouse to a modern computer system?

USB

A laptop that you previously purchased was shipped with SO-DIMM memory to accommodate the laptop's form factor. You would now like to upgrade the memory. Which of the following is an upgrade to the SO-DIMM standard?

UniDIMM

You work as the IT administrator for a small corporate network. One of the company employees needs to add an additional PCI card to the motherboard. When you open the computer, you see that the card that you purchased does not fit due to the card's height. Which of the following is the BEST method for using the newly purchased card?

Use a riser card to allow the new card to be installed parallel to the motherboard.

You are trying to push a memory module into a memory slot, but it is not seating properly. What is the MOST likely issue?

You are trying to install the memory module backwards in the memory slot.

A customer needs to use several applications. Currently, the computer cannot keep all the necessary applications open at the same time. Which of the following components should you consider upgrading?

memory

You have an older computer that has four DDR2 memory slots. Currently, there are two 512-MB memory modules installed. You check the motherboard documentation and find that the system has a 4-GB memory limitation. You want to add more memory to this system. What is the maximum total amount of usable RAM you can have in this system by adding new memory modules (and without replacing the existing memory modules)?

3GB

You have just purchased a smartphone with a USB Type-C cable connector for charging your phone. Which of the following is a USB Type-C connector? (Select one.)

4

Which of the following BEST describes the theoretical capacity of a DDR4 standard system memory module?

512 GB

You want to build a new system that supports 16 GB of memory. Which of the following is the MOST important consideration when building the computer?

64-bit processor

You are installing a new SATA hard drive in your Windows workstation. Which of the following connectors should you use to connect your hard drive to the motherboard?

7-pin connector

A clicking noise in your computer has now evolved into a grinding noise. In addition, you are beginning to see frequent error messages while running software, and your computer occasionally freezes. What is the MOST likely cause of these issues?

A failing hard drive

You need to purchase a case that meets the following criteria: • Compatible with most form factors. • At least two external and internal bays. • Good balance of size and space. Which case type should you purchase?

ATX mid tower

Which of the following are critical times when memory problems manifest themselves? (Select two.)

After you remove or install hardware On the first boot of a new computer

As a cable company technician, you need to use a fiber optic SC connector to connect a device to the company's fiber optic network. The connector includes the following unique characteristics: It uses a ceramic ferrule to ensure proper core alignment and to prevent light ray deflection. It is half the size of other fiber optic connectors. Which of the following is the SC connector? (Select the correct connector type.)

B

While running a graphics editing program on your Windows workstation, a screen suddenly pops up with an error message warning. You note the error message, but the only way to continue working is to reboot your system. What is this type of error screen called?

BSoD

You are purchasing a computer for a new administrative assistant in your company. Administrative assistants primarily uses word processing, spreadsheets, presentation software, and a web browser to complete their job assignments. Which of the following BEST describes the reason to choose unbuffered instead of buffered memory for this new computer?

Buffered memory is more expensive and slower than unbuffered memory.

You work as the IT administrator for a small corporate network. Sam, an employee in the support department, wants to run a virtual machine on his computer for troubleshooting customer issues, and he needs a very stable computer from which to work. You need to decide whether to install buffered or nonbuffered RAM in his computer. Which of the following BEST describes the reason to choose buffered instead of unbuffered memory for this new computer?

Buffered memory reduces the load on the memory controller and allows the system to be more stable.

With a memory module read request, there is a delay between the time of the data request and the time the data is available for output from the memory module.

CAS latency

Match each USB connector type on the left with the image label on the right. (Not all USB connector types will be used.)

CHECK CANVAS AND MEMORIZE QUESTION 82

Consider the external ports for a typical PC system (pictured below). Drag each port type on the left to the letter on the right that best identifies the port. (Each type can be used only once.)

CHECK CANVAS AND MEMORIZE QUESTION 85

There are critical times when memory problems often manifest themselves. Match each critical time on the left with the corresponding cause of the memory problems on the right.

CHECK CANVAS AND MEMORIZE QUESTION 87

Drag each internal hard drive connector type on the left to the appropriate description on the right.

CHECK CANVAS AND MEMRIZE QUESTIONS 91

Match each of the motherboard components on the left with the appropriate description on the right. Each component is used once.

CHECK QUESTION 50 ON CANVAS AND MEMORIZE

Consider the following diagram of a typical motherboard. Drag each label on the left to the letter on the right that best identifies the associated connector.

CHECK QUESTION 51 ON CANVAS AND MEMORIZE

The image below illustrates the four common external cable types for hard drives. Each type is identified by a number. Drag each cable type number on the left to the appropriate cable type title on the right.

CHECK QUESTION 52 ON CANVAS AND MEMORIZE

You are trying to quickly determine if a memory card is ECC-enabled by visually inspecting the card. What can you do to find out if the card is ECC-enabled?

Check to see if the memory is single-sided or double-sided.

A technician is replacing a cable modem. The cabling from the cable company has an inner solid wire conductor and an outer mesh conductor separated by PVC plastic insulation. Which of the following network cable types is being used?

Coaxial cable

While sorting through a box of cables in your storage room, you find one that matches the configuration shown in the image. Which of the following BEST describes the type of cable configuration and the purpose for which it would be used?

Crossover cable configuration used to connect computers directly to one another for networking.

You are providing telephone support for a user who is trying to connect a computer to a projector. You know that the projector only has a VGA port. How would you describe the connector that the user should look for?

D-shaped with 15 pins

Your motherboard has sockets for 184-pin DIMM RAM. Which type of RAM should you install?

DDR

Which of the following DDR memory types can be used by a triple-channel memory system? (Select two.)

DDR3 DDR4

Which memory rating identifies the fastest memory?

DDR3-2000

What are the advantages of DDR4 over DDR3, assuming the same operating frequency? (Select two.)

DDR4 uses less power than DDR3. DDR4 doubles the data transfer rate of DDR3.

Which of the following memory ratings identifies the fastest memory?

DDR4-1600

Which of the following is a term used to identify memory modules?

DIMM

You are helping a customer over the phone. The customer needs to connect a monitor that uses a digital interface. Which port should you instruct them to look for on the back of the PC?

DVI

The manager of the research and development team needs to make a PowerPoint presentation for her team members (with no audio). Her presentation requires her computer to be connected to a large high-definition television. You have been asked to ensure that the computer is connected and functioning properly prior to her presentation. In the process of setting up the computer, you find that the computer's video port (see image 1) is different from the port found on the TV (see image 2). Which of the following adapters MUST you use to connect the computer to the TV?

DVI-to-HDMI

You want to connect your workstation to a large, high-definition screen that is over 30 feet away from the workstation for displaying a video presentation with sound. Which of the following ports will BEST support the transmission distance between the workstation and the display before the signal starts degrading?

DisplayPort

You have purchased a new LED monitor for your computer. On the back of the monitor, you see the following port (pictured below). Which type of cable should you use to connect the monitor to your computer?

DisplayPort cable

Which of the following BEST describes a key feature of the DisplayPort interface that is used for connecting video monitors to computers?

DisplayPort can send both video and audio signals over the same cable.

You are attempting to boot a new system. The boot fails, and the system sounds a beep code. Which of the following describes the MOST likely cause of this error?

Either no memory is installed or the memory was not detected.

You are in a carpeted office lighted by fluorescent bulbs. You are preparing to add memory modules to a user's computer. The user has already unpacked the memory modules and stacked them on top of an old, unused CRT monitor. What is the greatest threat to these memory modules in this environment?

Electrostatic discharge (ESD).

You recently purchased a digital HD antenna to connect to your television. Which of the following is the type of coaxial cable connector you need to make the connection?

F-type

Which network type uses light pulses to transmit data?

Fiber optic

Your server runs in quadruple-channel memory mode. How many memory controllers are being used?

Four

Use the diagram above to match each case type label on the left with its corresponding case, identified by letters on the right.

GO TO CANVAS AND MEMORIZE QUESTION 101

You are in the process of installing a new motherboard in your workstation. You have already installed the CPU, heat sink, and memory. You have inserted the I/O shield into the case, fastened the standoffs to the case, and attached the motherboard to the standoffs. You are now ready to complete the installation. Drag each remaining step on the left to the right in the appropriate order that you need to complete them.

GO TO CANVAS AND MEMORIZE QUESTION 96

Which of the following are advantages of using fiber optic cabling for a network, as opposed to other types of cabling? (Select two.)

Greater cable distances without a repeater Immunity to EMI

You are using a crimper to attach an RJ-45 connector to a Cat 6 UTP cable. You need to use the T568A standard to connect the individual wires to the connector. Which wire should you connect to pin 1?

Green with white

The CEO of your small company has asked you to connect a laptop computer to the small conference room LED TV. The CEO will be showing a promotional video that demonstrates the new company strategy through images and sound. Which of the following cable types would work BEST for connecting the laptop to the display?

HDMI

You have installed a new computer with a quad-core 64-bit processor, 6 GB of memory, and a PCIe video card with 512 MB of memory. After installing the operating system, you see less than 4 GB of memory showing as available in Windows. Which of the following actions would MOST likely correct this issue?

Install a 64-bit version of the operating system.

Which of the following are characteristics of a coaxial network cable? (Select two.)

It has a conductor made from copper in the center. It uses two concentric metallic conductors.

A technician must press a cable connector's locking tab to remove a faulty fiber optic network cable. The cable connector is designed with two connector ends. Which of the following fiber connector types is the cable using?

LC

You have just received an order for various system components that you placed several weeks ago. One of the components is labeled as SO-DIMM memory. Which of the following was this memory MOST likely purchased for?

Laptop computers

You have just built a new system from scratch. You turn the computer on, but the system boot fails and sounds a beep code. Which of the following is the MOST likely cause?

Memory is not installed or is not detected.

You want to upgrade all the memory in your system with the fastest memory available. Which of the following should you choose?

Memory that is supported by your motherboard.

You want to build a computer that can stand upright on a desk and that takes up the least amount of space possible. Which case type should you select?

Micro-ATX slim tower

Which of the following motherboard form factors BEST allows for low-consumption power supplies?

Mini-ITX

Which of the following is the most common method for removing RAM from a motherboard?

Move the tabs holding the RAM out of the way; then pull straight up to remove the RAM.

Which of the following form factors does not have expansion slots on the motherboard, but instead uses a riser card for expansion cards?

NLX

You decided to upgrade your PC with a faster processor. To do this, you ordered a new motherboard over the internet that supports the processor that you want to use. When the motherboard arrives, you discover that the motherboard uses the Micro-ATX form factor. Your current case is an ATX mid-tower with a standard ATX motherboard inside. Which steps must you take for the Micro-ATX motherboard to work in the ATX case?

No additional steps are necessary. You can install the Micro-ATX motherboard in the ATX case.

Paul has just joined your company as a sales rep in the sales department. He is in the process of purchasing a laptop computer for work use. You have heard that some types of RAM are better than others. Which of the following types of RAM would BEST meet the needs of Paul's new computer?

Non-ECC memory, as it is less expensive and parity is not required.

While sorting through a box of cables in your storage room, you find one that matches the configuration shown in the image.

Patch (or straight-though) cable configuration used to connect computers to network devices, such as switches and hubs.

You are installing network cabling in the air space between the ceiling and the roof of a building. The cabling needs to be fire resistant. Which type of cabling should you use?

Plenum

A technician is running a network above a dropped ceiling that is also used for ventilation. The cable must be twisted pair and must be capable of Gigabit Ethernet speeds. Which of the following cables should the technician use?

Plenum-rated Cat 6a

Which of the following connectors are part of the system case and connect to header pins on the motherboard? (Select two.)

Power switch HDD LED activity

While performing data entry on your Windows 11 laptop, your screen suddenly goes black. What can you do immediately to troubleshoot the issue without losing any data that you have entered?

Press the Windows key + P four times

You have an existing system that has a single DDR3 memory module installed. You would like to add more memory to the three remaining empty memory slots. Which of the following steps should you take to make sure that you get the right memory for the system? (Select two.)

Purchase additional modules that are the same as what is currently installed. Check the motherboard documentation to find which modules are supported.

A technician is installing a cable modem that supplies internet connectivity for a home office. Which of the following cabling types would they use to connect the cable modem to the wall outlet?

RG-6

You need to connect the satellite television signal to your HD 4K flat screen TV using a coaxial cable. Which of the following is the BEST type of coaxial cable to use?

RG-6

Which kind of connector do you use to connect a modem to a standard telephone line?

RJ-11

Which connector is used with unshielded twisted-pair (UTP) cabling?

RJ-45

An employee calls to complain that their computer is behaving erratically. Some days, it functions correctly, and other days, it crashes frequently. Sometimes, the system won't boot at all. You open the system case and notice the following: • Two of the mounting screws are missing from the system hard disk drive. • The system uses memory modules from several different manufacturers with mismatched capacities. • Several capacitors on the motherboard are bulging and have a brown liquid oozing from them. • The chassis fan on the front of the case is oriented to blow air into the system. What should you do?

Replace the motherboard.

When playing videos games or watching movies on your workstation, the screen sometimes freezes and displays strange colors. You suspect that your video card is causing the issues. What is the BEST solution to resolve your display issues?

Replace the video card.

You have recently been called to troubleshoot network connectivity problems at a user's workstation. You found that the network cable runs across high-traffic areas on the floor, causing the cable to wear through and break. You have replaced the cable with a plenum-rated and shielded twisted-pair cable. You would like to minimize the problem and prevent it from happening again. Which of the following will BEST protect the cable from further damage?

Run the cable through the ceiling area instead of across the floor.

Which of the following external hard drive cable connectors are hot-pluggable?

SAS iSCSI

After arriving at work, you turn on your computer to begin your day. Instantly, you see smoke and smell a strange odor coming from the computer. Which of the following would be the MOST important action to take first?

Shut off the system immediately.

Which of the following statements is true regarding single- and double-sided memory?

Single-sided memory uses half the number of memory modules as double-sided memory of the same capacity

You are an IT technician for your company. As part of your job, you must manage and support a wide variety of devices. Which of the following devices MOST likely use a microUSB connector? (Select two.)

Smartphones Tablets

You are in the process of installing a motherboard in a system case. Which of the following objects should you place between the motherboard and the system case?

Standoffs

Susan works in the research and development department. She recently purchased a large high-speed external drive and has attached the drive to her computer using a USB cable. Her drive requires a minimum data transfer speed of 5 Gbps and needs to have access to 600 mA/15 volts of USB power to function properly. Although the correct drivers are installed, when she plugs her drive into her workstation, the drive is not working. To troubleshoot the problem, she has connected her drive to her coworker's computer, where the drive functions properly. No additional cables are required for this drive. Which of the following is the MOST likely reason that Susan's external hard drive is not working?

Susan has connected her drive to a USB 2.0 port, which does not have the required data transfer speed.

Which of the following BEST describes the south bridge chipset?

The chip that controls all of the computer's I/O functions.

Which of the following BEST describes the purpose of the north bridge chipset?

The chip that controls the PCI bus.

Your company has just upgraded your laptop computer. After receiving your new computer, you plug your external USB 2.0 hard disk into your new USB 3.0 port. Which of the following is the MOST accurate statement regarding how this device will function?

The device will work, but will only transfer at USB 2.0 speeds.

When you try to boot your computer, it hangs after POST. When you access the UEFI setup program, you see that the date is several years behind, and the time is set to 12:01 a.m. Which of the following is the MOST likely cause of this behavior?

The motherboard battery has failed.

You are an IT technician for your company. As part of your job, you must manage and support a wide variety of devices. Which of the following is the MOST common interface for peripheral devices?

USB

You have just upgraded the memory in one of your network servers by adding two 4-GB ECC memory cards. Before purchasing the new memory, you made sure that the modules fit in the memory slots (packaging) and the speed (memory frequency) was supported by the memory controller. What did you forget to check that would significantly impact the memory checking of your new ECC memory cards?

Whether or not the existing memory modules support ECC.

Which pin on the power supply connector connects to the power good wire on the motherboard in order to indicate an appropriate action for the motherboard if the power disappears, quickly reappears, or does not appear at all?

Which pin on the power supply connector connects to the power good wire on the motherboard in order to indicate an appropriate action for the motherboard if the power disappears, quickly reappears, or does not appear at all?

After installing a new RAM module, you boot your 64-bit system, but the display remains blank. What is the MOST likely cause of this issue? Correct answer:

You have installed a non-parity RAM on an ECC system.

Which of the following are true when working with dual-, triple-, and quad-channel memory module sets? (Select two.)

You must install modules in matching sets (capacity and speed). You should use the same capacity modules for a set.

Which of the following are the MOST likely signs that your computer might need more memory? (Select two.)

Your hard drive is constantly operating as you work. Your hard drive light on the system case is on for long periods of time.