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     Chapter 11 V4.1 - IT Essentials: PC Hardware and Software

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    PostSubyek: Chapter 11 V4.1 - IT Essentials: PC Hardware and Software   Thu Jun 16, 2011 2:23 pm

    1
    On what media is information stored when an SSD is installed?
    #static RAM

    2
    What manufacturing process makes a multicore processor operate faster than a single-core processor on the same 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.

    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 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?

    5
    Which tool would be the best to use to test the voltage output on every pin of a SATA connector?
    #multimeter

    6
    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 motherboard.
    #The new memory must be the same type as the memory already present.
    #The speed of the new memory must be the same or faster than the existing memory.


    7
    What type of motherboard bus carries memory locations?
    #address

    8
    Which two ports are used to connect external media readers to a computer? (Choose two.)
    #FireWire
    #USB


    9
    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.

    10
    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?


    11
    Which two motherboard features must be compatible when selecting a new CPU? (Choose two.)
    #chip set
    #socket type


    12
    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.

    13
    What is the purpose of the copper or aluminum between a processor and the fan on a computer motherboard?
    #It conducts heat from the processor so that the fan can disperse the heat.

    14
    A motherboard has a 64-bit bus. What does this mean?
    #The processor buffers 64 bits of data each clock cycle.

    15
    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.


    16
    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.


    17
    When testing the 6-pin PCIe connector with a multimeter, what should the voltage read?
    #12 V

    18
    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


    19
    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.


    20
    Why is a solid state drive more reliable than a traditional drive?
    #It uses power-based memory instead of magnetic-based memory.

    21
    Which two problems are caused by inadequate CPU cooling and ventilation? (Choose two.)
    #The computer locks up.
    #The computer does not boot.


    22
    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.

    23
    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.

    24
    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.


    25
    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?
    #eSATA

    26
    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?
    #Re-flash the BIOS.

    27
    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.
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    PostSubyek: Re: Chapter 11 V4.1 - IT Essentials: PC Hardware and Software   Thu Jun 16, 2011 4:59 pm


    1
    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

    2
    How should a floppy disk drive be cleaned?
    – Use a drive cleaning kit.

    3
    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

    4
    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.

    5
    Under which circumstance would the use of an antistatic wrist strap be discouraged?
    – when working with high voltage circuits

    6
    When a technician is servicing a laser printer, which two dangers need to be avoided? (Choose two.)
    – electrical shock
    – burns


    7
    Why should a technician avoid using magnetized tools when repairing a computer?
    – They store ESD and discharge on contact with computer components.

    8
    Which method of disk writing does RAID 5 use?
    – parity

    9
    What is the recommended way to clean an optical drive?
    – Use compressed air and lint-free cotton swabs.

    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 is a critical step when installing a second PATA hard drive in a computer?
    !!!For this answer I’m not sure!!!
    – Ensure that pin one of the PATA data cable is correctly aligned with the connector.

    12
    What is the recommended procedure for cleaning a computer fan assembly?
    – Hold the fan blades in place and clean them with compressed air.

    13
    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

    14
    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
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    Chapter 11 V4.1 - IT Essentials: PC Hardware and Software

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