Thursday, January 27, 2011

IT Essential v4.1 Chapter 2

IT Essential v4.1 Chapter 2
1 Which three computer components contain hazardous materials and require special handling for disposal? (Choose three.)
*printer toner cartridges

2 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

3 Which two tools can help protect against ESD? (Choose two.)
*antistatic wrist strap
*antistatic mat

4 Refer to the exhibit. Which type of tool is presented in the graphic?
*Phillips-head screwdriver

5 Which precaution should be taken when working around electronic devices?
*Avoid using magnetized tools.

6 Which step should be performed first when servicing computer equipment?
*Turn off and remove the power source.

7 Which condition refers to a sudden increase in voltage, which is usually caused by lightning?

8 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?
*compressed air

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

10 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.)
*Spyware Remover
*Disk Cleanup

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

12 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

13 Which characteristic defines EMI?
*electromagnetic fields that are used to reshape weak signals that are affected by external noise

14 Which computer components must a technician never try to work on when wearing an antistatic wrist strap?
*CRT monitor

15 Which condition refers to a reduced voltage level of AC power that lasts for a period of time?

16. What is recommended to remove dust from inside a computer case?
*can of compressed air

17. Refer to the exhibit. Which type of tool is shown in the graphic?
*digital multimeter

18 Which tool should be used if a user needs to optimize space on a hard drive?

19 What are two significant sources of EMI? (Choose two.)
*infrared mice
*electrical storms

20 A technician wants to limit the chances of ESD affecting his workspace. Which three precautions should be taken? (Choose three.)
*Ensure antistatic mats are on the workbench and floor.
*Wear an antistatic wrist strap.
*Keep all components in antistatic bags.

21 What is the proper way to dispose of outdated CRTs?
*All of the components should be disposed of in compliances with local environmental regulations.

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