It-essentials v6.0 Chapter 3 Exam Answers

1. When a computer is being assembled, which action can be taken to help eliminate cable clutter within a computer case?

Install a CPU without using a heat sink and fan assembly.

Install a 2.5in HDD instead of a 3.5in HDD.

Install a modular power supply.*

Install a motherboard without using standoffs in the case.


2. What is the best way to apply thermal compound when reseating a CPU?

Clean the CPU and the base of the heat sink with isopropyl alcohol before applying the thermal compound.*

Use rubbing alcohol to clean the base of the heat sink before applying thermal compound.

Scrape off the old thermal compound on the heat sink with a sharp knife and apply the thermal compound liberally.

Put a thick layer of thermal compound over the existing thermal compound before reseating the CPU.

Change the base of the heat sink before applying the thermal compound.


3. A technician is installing additional memory in a computer. How can the technician guarantee that the memory is correctly aligned?

The label on the memory module should always face the CPU.

A notch in the memory module should be aligned with a notch in the memory slot.*

The arrows on the memory module should be aligned with the arrows on the motherboard slot.

Memory slots are color coded, with one end red and one end blue.


4. What is used to prevent the motherboard from touching metal portions of the computer case?

an I/O shield

thermal compound


ZIF sockets


5. Which statement describes the purpose of an I/O connector plate?

It makes the I/O ports of the motherboard available for connection in a variety of computer cases.*

It plugs into the motherboard and expands the number of available slots for adapter cards.

It provides multiple connections for SATA hard drives to connect to the motherboard.

It connects the PCIe adapter slots used for video directly to the CPU for faster processing.


6. What are three important considerations when installing a CPU on a motherboard? (Choose three.)

Antistatic precautions are taken.*

The CPU is correctly aligned and placed in the socket.*

The CPU contacts are first cleaned with isopropyl alcohol.

The CPU heat sink and fan assembly are correctly installed.*

The CMOS EPROM battery is removed prior to installing the CPU.

Maximum insertion force is applied to the load lever so the CPU is locked in place.


7. Which type of drive is typically installed in a 5.25 inch (13.34 cm) bay?

hard drive

optical drive*

flash drive



8. Which type of motherboard expansion slot has four types ranging from x1 to x16 with each type having a different length of expansion slot?






9. A technician is installing a new high-end video adapter card into an expansion slot on a motherboard. What may be needed to operate this video adapter card?

PCI expansion slot

PCIe x 8 expansion slot

Two 8-pin power connectors*

24-pin ATX power connector


10. When assembling a PC, how is pin 1 identified on the front panel cables so that it can be aligned properly with pin 1 on the motherboard panel connector?

by a small arrow or notch*

by a plus sign

by a P1

by a red cable


11. A technician has just finished assembling a new computer. When the computer is powered up for the first time, the POST discovers a problem. How does the POST indicate the error?

It issues a number of short beeps.*

The LED on the front of the computer case flashes a number of times.

It places an error message in the BIOS.

It locks the keyboard.


12. What is a function of the BIOS?

enables a computer to connect to a network

provides temporary data storage for the CPU

performs a check on all internal components*

provides graphic capabilities for games and applications


13. A technician has assembled a new computer and must now configure the BIOS. At which point must a key be pressed to start the BIOS setup program?

before the computer is powered on

during the Windows load process

during the POST*

after the POST, but before Windows starts to load


14. What data is stored in the CMOS memory chip?

BIOS settings*

Windows configuration settings

user login information

device drivers


15. What is the purpose of LoJack?

It allows the owner of a device to remotely locate, lock, or delete all files from the device.*

It ensures that a computer will only boot an operating system that is trusted by the motherboard manufacturer.

It provides passwords for different levels of access to the BIOS.

It encrypts data on hard drives to prevent access without the correct password.


16. Which is a BIOS security feature that can prevent data from being read from a hard drive even if the hard drive is moved to another computer?

drive encryption*


secure boot

BIOS passwords


17. What is one purpose of adjusting the clock speed within the BIOS configuration settings?

to allow a computer to run multiple operating systems in files or partitions

to change the order of the bootable partitions

to disable devices that are not needed or used by the computer

to allow the computer to run slower and cooler*


18. A technician is assembling a new computer. Which two components are often easier to install before mounting the motherboard in the case? (Choose two.)




sound card

video card


19. Which two components are commonly replaced when a computer system with a newer motherboard is being upgraded? (Choose two.)


hard disk drive


optical drive

CMOS battery

adapter card


20. A user reports that every morning when a particular computer is turned on, the configuration settings on that computer have to be reset. What action should be taken to remedy this situation?

Replace the motherboard.

Replace the CMOS battery.*

Move the jumpers,

Upgrade the BIOS.


21. What are two reasons for installing a second hard disk drive inside an existing computer? (Choose two.)

to support a RAID array*

to store BIOS configuration settings

to store the system swap file*

to increase CPU speed

to allow access to a secondary display output


22. When should a technician use unsigned drivers for newly installed computer hardware?

if the unsigned driver is the most current driver available

if the original installation media is not available

if the source of the drivers is trusted by the technician*

if the Windows installation media does not contain a valid signed driver


23. What computer component is often required to allow a single computer to use two monitors simultaneously?

an extra power supply

a second video adapter card*

an extra USB connection

a KVM switch


24. A technician notices that half of the memory slots on a motherboard are colored differently from the other half. Which technology is probably implemented on this system?



dual channeling*


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