IT Essentials v5 Chapter 2 exam answers
1
Which tool in Windows XP gives a technician access to initialize disks and create partitions?
Which tool in Windows XP gives a technician access to initialize disks and create partitions?
Defrag
Scandisk
Format
Disk Management
Disk Cleanup
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
Defrag
Disk Management
Chkdsk
3
Which two types of tools can help protect a computer from malicious attacks? (Choose two.)
Which two types of tools can help protect a computer from malicious attacks? (Choose two.)
Disk Management
Spyware Remover
Antivirus software
Disk Cleanup
Scandisk
Fdisk
4
A technician wants to limit the chances of ESD affecting the workspace. Which three precautions should be taken? (Choose three.)
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.
5
What are two significant sources of EMI? (Choose two.)
What are two significant sources of EMI? (Choose two.)
infrared mice
electrical storms
RAM modules
power lines
LCD monitors
6
Which precaution should be taken when working inside computer systems?
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.
7
Which cleaning solution is recommended to clean the contacts of computer components?
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
8
Why should a pencil never be used as a tool when working inside a computer?
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.
9
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.)
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.)
Fdisk
a BIOS updater
Spyware remover
Defrag
Disk Cleanup
Device Manager
10
Why is documentation of all services and repairs an important organizational tool for a technician?
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.
11
How does an inline UPS protect computer equipment against electrical power brownouts and blackouts?
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
12
Which two actions pose a potential safety hazard to a technician? (Choose two.)
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
13
Which circumstance increases the likelihood of ESD damage to a computer?
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
14
Which tool is designed to loosen or tighten crosshead screws?
Which tool is designed to loosen or tighten crosshead screws?
torx driver
phillips screwdriver
flat head screwdriver
hex driver
15
Which tool could potentially cause data loss on hard disk or floppy drives?
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
16
Which condition refers to a reduced voltage level of AC power that lasts for an extended period of time?
Which condition refers to a reduced voltage level of AC power that lasts for an extended period of time?
sag
spike
surge
brownout
17
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?
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
18
Which two devices commonly affect wireless networks? (Choose two.)
Which two devices commonly affect wireless networks? (Choose two.)
microwaves
cordless phones
external hard drives
home theaters
Blu-ray players
incandescent light bulbs
19
What is a proper directive for using a can of compressed air to clean a PC?
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.
20
Which type of fastener is loosened and tightened with a hex driver?
Which type of fastener is loosened and tightened with a hex driver?
six sided bolt
cross head screw
slotted screw
torx bolt
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