Sunday, March 27, 2011

IT Essential v4.1 Chapter 11

1.A technician suspects that a hard drive is beginning to fail. Which two conditions would support this suspicion? (Choose two.)
*The hard drive is making unusual noises.
*The hard drive has a gradual increase in the number of bad sectors.

2.Which two problems are caused by inadequate CPU cooling and ventilation? (Choose two.)
*The computer locks up.
*The computer does not boot.

3.A technician fails to successfully boot a computer into Safe Mode. The technician then successfully boots the computer using a Windows boot disk. What is the most likely cause of the problem?
*hard drive failure

4.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.

5.A customer needs help selecting a new power supply for an existing computer. Which two questions should a salesperson ask to help the customer? (Choose two.)
*What is the size of the case, and which type of motherboard is in the computer?
*Which components are currently being used on the computer, and what new components may be added to the computer?

6.Which three computer system capabilities should a technician consider when installing a video capture card? (Choose three.)
*processor speed
*amount of RAM
*VGA adapter specification

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.Which tool would be the best to use to test the voltage output on every pin of a SATA connector?

9.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.

10.A computer system keeps losing the date and time or requesting to go into the Setup program during the boot process. What are two possible solutions? (Choose two.)
*Replace the motherboard battery.
*Verify that the motherboard battery is secure.

11.A technician is upgrading a computer motherboard and has successfully replaced a single core CPU with a dual core CPU. What should be checked to ensure that the dual core CPU now operates correctly?
*Ensure that the front-side bus settings match the speed of each CPU core.

12.When testing the 6-pin PCIe connector with a multimeter, what should the voltage read?
*12 V

13.Why is a solid state drive more reliable than a traditional drive?
*It has fewer moving parts.

14.A motherboard flash BIOS has been updated. After the update, the computer restarts, but does not boot. The technician examines the motherboard documentation and discovers the motherboard has only one BIOS chip. What will the technician have to do to fix this problem?
*Obtain a replacement BIOS chip.

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

16.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?

17.What type of motherboard bus carries memory locations?

18.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.

19.What is the purpose of the copper or aluminum between a processor and the fan on a computer motherboard?
*It elevates the processor in the case to improve airflow.

20.Which two motherboard features must be compatible when selecting a new CPU? (Choose two.)
*chip set
*socket type

21.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.

22.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.

23. A technician is helping a client select additional RAM for a computer. Which three items should be considered when updating RAM? (Choose three.)
*The memory must be compatible with the video card.
*The memory must be compatible with the motherboard.

24.On what media is information stored when an SSD is installed?
*static RAM

25.What are two probable causes of a computer failing to recognize a newly installed storage device? (Choose two.)
*The device jumpers are set incorrectly.
*The system BIOS settings are incorrect.

26.A new sound card has just been installed, but no sound reaches the speakers. What are two common solutions a technician might implement? (Choose two.)
*Connect the speakers to the correct port.
*Unmute the sound through the operating system.

27.A motherboard has a 64-bit bus. What does this mean?
*The processor buffers 64 bits of data each clock cycle.

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