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Jan 4, 2009

Which two ports are used to connect external media readers to a computer? (Choose two.)
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?
A technician begins gathering data from a customer by asking open-ended questions. Which question is a proper open-ended question?
Were any recent updates performed?
Has anyone installed new software in the past two days?
Are you the only user to use the PC recently?
What happens when the PC is powered on?
What is the recommended procedure for cleaning a computer fan assembly?
Remove the fan assembly and wash it in warm soapy water.
Use a vacuum cleaner to remove the dust from the fan blades.
Hold the fan blades in place and clean them with compressed air.
Blow compressed air on the fan so that its high rate of spin will throw off all dust and debris.
Which method of disk writing does RAID 5 use?
error-correcting coding
When a technician is servicing a laser printer, which two dangers need to be avoided? (Choose two.)
mercury poisoning
electrical shock
chromium ingestion
lead poisoning
Under which circumstance would the use of an antistatic wrist strap be discouraged?
when working in a dry environment
when removing memory from a laptop
when working with high voltage circuits
when replacing a video card on a desktop computer
How should a floppy disk drive be cleaned?
Apply a vacuum cleaner to the disk slot.
Use a drive cleaning kit.
Spray an isopropyl alcohol based cleaner into the hole provided in the drive.
Remove heads and clean with a mild detergent.
What is a critical step when installing a second PATA hard drive in a computer?
Set the swap file size on the new drive.
Set the drive ID number with the correct jumper.
Configure the BIOS settings to auto-detect the master drive.
Ensure that pin one of the PATA data cable is correctly aligned with the connector.
Why should you use an antistatic mat when working on the internal components of a computer?
protect the technician against electrical shock
reduce the chance of computer components being damaged by ESD
prevent the technician’s tools from being damaged by ESD
protect computer components from AC voltage while working on the computer
What manufacturing process makes a multicore processor operate faster than a single-core processor on the same motherboard?
The multicore processors are designed to take advantage of more memory on the motherboard.
The multicore processors are designed with lower Level 2 caches on the chip, and they make better use of the cache on the motherboard.
The multicore processors are designed with multiple processors integrated into the same circuit.
The multicore processors are designed to have better access to RAM on the motherboard.
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?
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 a heat sink to the CPU.
Add one or more case fans.
Replace the case with one that has front air vents.
Install the CPU into a thermal cooling unit overnight.
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?
Disconnect the data cables from the optical drive when the power is on and press the eject button.
Insert a pin in the small hole next to the eject button.
Remove the drive and then disassemble the drive.
Remove the power source and then hold the eject button while reconnecting the power source.
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?
Signed drivers prevent physical damage to devices.
An unsigned driver can cause files to be fragmented as they are processed.
A signed driver has passed Microsoft’s quality lab test and prevents a system from being compromised.
All companies making devices for a Windows computer have to have Microsoft sign off on the new driver before it can be added to the operating system.
A signed driver has been approved by the company that created the device driver.
What is the recommended way to clean an optical drive?
Use compressed air and lint-free cotton swabs.
Use cotton swabs and denatured alcohol.
Use a vacuum cleaner.
Use glass cleaner and a lint-free cloth.
Why should a technician avoid using magnetized tools when repairing a computer?
They can generate ESD that can affect the CPU.
They can cause polarity changes on the motherboard.
They store ESD and discharge on contact with computer components.
They can induce current which can damage internal computer components.
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?
The technician should attempt to repair the power supply. If the attempt is unsuccessful, the power supply should be thrown in the trash and replaced.
The technician should attempt to repair the power supply. If the technician is unsuccessful, the power supply should be replaced with a power supply of equal or greater wattage.
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.
Power supplies should always be replaced with components of equal or less wattage to avoid damage to the system from excess power to internal components.
When a computer boots, the hard disk is not recognized. What are two possible causes of the problem? (Choose two.)
The two disk drives are connected to the same IDE cable.
The power cable is not attached properly to the drive.
The IDE drive is jumpered as the master, and the CD drive connected to the same cable is jumpered as the slave.
The data cable is loose or disconnected.
The floppy disk cable is connected to the hard drive.
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?
Vacuum all dust and debris from the computer.
Remove all dust and debris from the computer using a can of compressed air.
Clean the internal components of the computer using a non-abrasive spray cleaner and an anti-static sponge.
Clean the inside of the computer using a lint-free cloth and a pencil to dislodge stuck or embedded debris.


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