Chapter 11 Exam - IT Essentials: PC Hardware and Software (Version 4.1)

1
What is the recommended procedure for cleaning a computer fan assembly?

• Hold the fan blades in place and clean them with compressed air.

2
Which two ports are used to connect external media readers to a computer? (Choose two.)

• FireWire
• USB

3
When a technician is servicing a laser printer, which two dangers need to be avoided? (Choose two.)

• burns
• electrical shock

4
How should a floppy disk drive be cleaned?

• Use a drive cleaning kit.

5
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 integrated into the same circuit.

   
6
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.

   
7
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

   
8
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?

• I/O

   
9
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?

• Add one or more case fans.

10
Under which circumstance would the use of an antistatic wrist strap be discouraged?

• when working with high voltage circuits

   
11
What is the recommended way to clean an optical drive?

• Use compressed air and lint-free cotton swabs.

   
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
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.

   
14
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?

• SCSI

   
15
Why should a technician avoid using magnetized tools when repairing a computer?

• They can generate ESD that can affect the CPU.

16
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.

    
17
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.

   
18
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.

19
Which method of disk writing does RAID 5 use?

• parity

   
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?

Posted in: Essentials