Zde může být text o autorovi
Digg  Sphinn  del.icio.us  Facebook  Mixx  Google  BlinkList  Furl  Live  Ma.gnolia  Netvouz  NewsVine  Pownce  Propeller  Reddit  Simpy  Slashdot  Spurl  StumbleUpon  TailRank  Technorati  TwitThis  YahooMyWeb

Záhlaví stránek


chapter 11

1)Which two ports are used to connect external media readers to a computer? (Choose two.)

2)Why should you use an antistatic mat when working on the internal components of a computer?
#Reduce the chance of computer components being damaged by ESD

3)Under which circumstance would the use of an antistatic wrist strap be discouraged?
#When working with high voltage circuits

4)What is a critical step when installing a second PATA hard drive in a computer?
#Ensure that pin one of the PATA data cable is correctly aligned with the connector

5) A technician needs to retrieve a DVD from an optical drive that is jammed and fails to open. What is the best method the technician could use to retrieve the DVD?
#Insert a pin in the small hole next to the eject button.

6)Which method of disk writing does RAID 5 use?

7) A customer is interested in video editing and has purchased a FireWire hard drive for storage of videos. However, no FireWire ports are available on the motherboard. What type of adapter will the customer be interested in obtaining?

8) When a computer boots, the hard disk is not recognized. What are two possible causes of the problem? (Choose two.)
#The power cable is not attached properly to the drive.
#The data cable is loose or disconnected.

9)What is the recommended procedure for cleaning a computer fan assembly?
#Hold the fan blades in place and clean them with compressed air

10)While performing routine maintenance, a user notices that the desk area around the computer is cluttered and dusty. After cleaning the desk area, what action should the user take to clean the computer?
#Remove all dust and debris from the computer using a can of compressed air.

11) What manufacturing process makes a multicore processor operate faster than a single-core processor on the same motherboard?
#The multicore processors are designed with multiple processors integradet into the same circuit.

12) You are monitoring a new technician installing a device driver on a Windows-based PC. The technician asks why the company requires the use of signed drivers. What would be the best response to give?
#A signed driver has passed Microsoft's quality lab test and prevents a system from being compromised.

13)When a technician is servicing a laser printer, which two dangers need to be avoided? (Choose two) #electrical shock
# burns

14)What is the recommended way to clean an optical drive?
#Use compressed air and lint-free cotton swabs

15)A technician has determined that a computer is failing to boot because of a power supply that is not supplying power to the hard drives. What is the correct course of action?
#No attempt should be made to repair the power supply. The power supply should be replaced with a power supply of equal or greater wattage

16)Which type of hard drive cable connects drives in a daisy chain series and requires manual termination at each end of the daisy chain to prevent data corruption?

17) A technician is concerned that a computer is overheating. The computer reboots without warning. What can the technician do to improve the circulation of air through the computer?
#Replace the case with one that has front air vents.

18)How should a floppy disk drive be cleaned.
#Use a drive cleaning kit

19)Why should a technician avoid using magnetized tools when repairing a computer?
#They store ESD and discharge on contact with computer components.

20) A technician begins gathering data from a customer by asking open-ended questions. Which question is a proper open-ended question?
#What happens when the PC is powered on?