IT Essentials v5 Chapter 2 exam answers
Which tool in Windows XP gives a technician access to initialize disks and create partitions?
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
Which two types of tools can help protect a computer from malicious attacks? (Choose two.)
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 verylow.
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.
What are two significant sources of EMI? (Choose two.)
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.
Which cleaning solution is recommended to clean the contacts of computer components?
glass cleaner with ammonia
water that is mixed with a small amount of dishwashing liquid
Why should apencil 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.
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
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.
11How 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
Which two actions pose a potential safety hazard to a technician? (Choose two.)
standing on anantistatic 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
Which circumstance increases the likelihood of ESD damage to a computer?
self grounding against the computer case
using a magnetic screwdriver whileworking on a hard drive
plugging a printer into an UPS
working in low levels of humidity
Which tool is designed to loosen or tighten crosshead screws?
flat head screwdriver
Which tool could potentially cause data loss on hard disk or floppy drives?
a magnetic screwdriver
a lead pencil
a computer vacuum cleaner
Which condition refersto a reduced voltage level of AC power that lasts for an extended period of time?
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...
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