IT1 chapter2-ver.4.1

1.Which three computer components contain hazardous materials and require special handling for disposal? (Choose three.)
*batteries
floppy drives
*monitors
optical drives
parallel cables
*printer toner cartridges


2.Which step should be performed first when servicing computer equipment?
Wipe down the exterior with a lint-free, damp soft cloth.
Open the case and check for any loose connections.
*Turn off and remove the power source.
Replace any suspected bad components with known good components.

3.A technician wants to limit the chances of ESD affecting his workspace. Which three precautions should be taken? (Choose three.)
Store all computer components in clear plastic bags.
*Ensure antistatic mats are on the workbench and floor.
Wear an antistatic wrist strap.
*Ensure that all flooring is carpeted.
Keep all components in antistatic bags.
*Keep environment cool and dry.

4.Which characteristic defines EMI?
binary interference that distorts the information in a transmission media
electromagnetic fields that are used to reshape weak signals that are affected by external noise
radiation from artificial sources that can seriously affect fiber-optic media
*interference that is caused by motors


5.Which computer components must a technician never try to work on when wearing an antistatic wrist strap?
CPU
hard disk
keyboard
*CRT monitor
RAM module

6.Which two tools can help protect against ESD? (Choose two.)
*antistatic wrist strap
compressed air
*antistatic mat
safety glasses
polyester clothing


7.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 material safety data sheet
the insurance policy of the company
the local hazardous materials team
the regulations provided by the Occupational Safety and Health Administration


8.The performance of a computer is reduced after it has been using the Internet. Which three tools could be run to try to improve the performance of the computer? (Choose three.)
Fdisk
*Spyware Remover
*Defrag
Disk Cleanup
*a BIOS updater
Device Manager Utility

9.Which tool in Windows XP gives a technician access to initialize disks and create partitions?
Defrag
Disk Cleanup
*Disk Management
Format
Scandisk

10.Which tool should be used if a user needs to optimize space on a hard drive?
*Defrag
Disk Management
Fdisk
Format

11.Which two types of tools can help protect a computer from malicious attacks? (Choose two.)
*Anti-virus software
Disk Cleanup
Disk Management
Fdisk
Scandisk
*Spyware Remover

12.What is the proper way to dispose of outdated CRTs?
All of the components should be disposed of into landfills.
All of the components should be properly incinerated.
*All of the components should be disposed of in compliances with local environmental regulations.
All of the components should be sealed in containers and disposed of into landfills.

13.Which condition refers to a reduced voltage level of AC power that lasts for a period of time?
*brownout
sag
spike
surge

14.What is recommended to remove dust from inside a computer case?
damp cloth
dust cloth
household vacuum cleaner
*can of compressed air


15.Which type of tool is shown in the graphic?
cable meter
*digital multimeter
network traffic monitor
electrostatic discharger

16.Which type of tool is shown in the graphic?
hex screwdriver
stripped screwdriver
Phillips-head screwdriver
flat-head screwdriver

17.Which Windows XP command-line utility scans the critical files of the operating system and replaces any files that have been corrupted?
Chkdsk
Defrag
Disk Cleanup
Disk Management
Scan System
*System File Checker

18.Which precaution should be taken when working around electronic devices?
*Avoid using magnetized tools.
Only use hand tools from the same vendor.
Wear ESD protection to repair monitors in humid environments.
Avoid using ESD wrist straps and ESD mats simultaneously.

19.A technician has a room of computers which are running very hot. The technician discovers that the heat sinks in the computers are very dusty. What should the technician use to clean the heat sinks?
mild cleaning solution
lint-free cloth
isopropyl alcohol
*compressed air


20.Which condition refers to a sudden increase in voltage, which is usually caused by lightning?
brownout
sag
*spike
surge

21.What are two significant sources of EMI? (Choose two.)
infrared mice
RAM modules
*electrical storms
LCD monitors
*power lines