IT Essentials Chapter 2 V5.0 Answers

1. Which tool in Windows XP gives a technician access to initialize disks and create partitions?




Disk Management

Disk Cleanup


2. Which cleaning solution is recommended to clean the contacts of computer components?

isopropyl alcohol

glass cleaner with ammonia

water that is mixed with a small amount of dishwashing liquid

rubbing alcohol


3. Which two actions pose a potential safety hazard to a technician? (Choose two.)

standing on an antistatic mat while working on a computer

plugging a printer into an UPS

using a magnetic screwdriver while working on a hard drive

cleaning the inside of the computer while it is turned on

wearing a wrist strap while working inside a power supply


4. Which circumstance increases the likelihood of ESD damage to a computer?

self grounding against the computer case

using a magnetic screwdriver while working on a hard drive

plugging a printer into an UPS

working in low levels of humidity


5. What are two significant sources of EMI? (Choose two.)

infrared mice

electrical storms

RAM modules

power lines

LCD monitors


6. Which condition refers to a reduced voltage level of AC power that lasts for an extended period of time?






7. Which tool could potentially cause data loss on hard disk or floppy drives?

compressed air

a magnetic screwdriver

a lead pencil

a computer vacuum cleaner


8. Which Windows XP command-line utility scans the critical files of the operating system and replaces any files that have been corrupted?

System File Checker

Disk Cleanup

Scan System


Disk Management



9. Which tool is designed to loosen or tighten crosshead screws?

torx driver

phillips screwdriver

flat head screwdriver

hex driver


10. What is a proper directive for using a can of compressed air to clean a PC?

Use a long, steady stream of air from the can.

Do not spray the compressed air with the can upside down.

Do not use compressed air to clean a CPU fan.

Spray the CPU cooling fan with the compressed air to verify that the fan blade is spinning freely.


11. The performance of a computer is reduced after using the Internet. Which three tools could be run to try to improve the performance of the computer? (Choose three.)


a BIOS updater

Spyware remover


Disk Cleanup

Device Manager


12. Which type of fastener is loosened and tightened with a hex driver?

six sided bolt

cross head screw

slotted screw

torx bolt


13. Why should a pencil never be used as a tool when working inside a computer?

Pencil lead is conductive.

The lead in a pencil can induce current.

A pencil can hold a static charge.

Pencil lead is corrosive.


14. How does an inline UPS protect computer equipment against electrical power brownouts and blackouts?

by stopping the flow of voltage to the computer

by grounding excess electrical voltage

by switching from main power to a standby power source

by using a battery to supply a constant level of voltage


15. Which two devices commonly affect wireless networks? (Choose two.)


cordless phones

external hard drives

home theaters

Blu-ray players

incandescent light bulbs


16. A technician wants to limit the chances of ESD affecting the workspace. Which three precautions should be taken? (Choose three.)

Ensure antistatic mats are on the workbench and floor.

Keep humidity in the environment very low.

Ensure that all flooring is carpeted.

Wear an antistatic wrist strap.

Keep all components in antistatic bags.

Store all computer components in clear plastic bags.


17. Which precaution should be taken when working inside computer systems?

Avoid using magnetized tools.

Wear ESD protection to repair monitors in humid environments.

Leave the power cord attached to an outlet for grounding.

Avoid using ESD wrist straps and ESD mats simultaneously.


18. Why is documentation of all services and repairs an important organizational tool for a technician?

It allows the public sharing of information on the Internet.

It increases the cost of services and repairs.

It reduces the technical skills required of new technicians.

It provides reference material for similar problems when they are encountered in the future.


19. A technician accidentally spills a cleaning solution on the floor of the workshop. Where would the technician find instructions on how to properly clean up and dispose of the product?

the local hazardous materials team

the insurance policy of the company

the material safety data sheet

the regulations provided by the local occupational health and safety administration


20. Which two types of tools can help protect a computer from malicious attacks? (Choose two.)

Disk Management

Spyware Remover

Antivirus software

Disk Cleanup



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