A+ Software (220-302) test questions

Test 17
1. One of your accounts is using NT4 with a PDC and 8 NT4 workstations with Service pack 4 installed, with the possibility of an upgrade to Windows 2000 in the near future. One of the staff members often does some of the light administration work on the server. You get a call stating that a USB 2.0 scanner was purchased and appears to be inoperative with their network. Which of the following would be the most likely cause of the scanner failure, when considering that the scanner worked when taken out of the box?
Since they purchased USB 2.0 a BIOS upgrade would be in order for the operating system to see the new hardware.
Video card is not seated properly
The NT4 operating system is not USB compatible.
USB 2.0 is not compatible with NT4 unless Service pack 6 is installed.
Answer/Explanation
  • The NT4 operating system is not USB compatible.

    The NT4 operating system does not support USB or FireWire, and there is not a service pack that offers this option.

    2. You would like help a friend set up a small peer-to-peer office network with 8 employees, using W98? Cost, reliability, and maintenance overhead are all concerns for the business owner. Which of the following protocols would provide transport services on the network with the least amount of overhead, and is reliable?
    NetBEUI is a low overhead and highly reliable protocol.
    For the lowest overhead, and a high degree of reliability the SPX protocol is the most widely used.
    The DLC protocol provides the highest degree of reliability with the lowest overhead.
    TCP offers the highest reliability and is a low overhead protocol.
    None of the above.
    Answer/Explanation
  • NetBEUI is a low overhead and highly reliable protocol.

    NetBEUI is a fast, reliable, low overhead, Transport layer protocol. The downfall to NetBEUI is that it is not routable, although it may be tunneled through a VPN with PPTP, or L2TP.

    3. Which of the following would be the best description of pre-emptive multitasking?
    Pre-emptive multitasking is when the CPU switches back and forth between applications that are loaded at the same time.
    TPre-emptive Multitasking utilizes the services of the operating system to allot time to an application.
    Co-operative multitasking utilizes the services of the operating system to allot time to an applica-tion.
    None of the above are correct.
    Answer/Explanation
  • Pre-emptive Multitasking utilizes the services of the operating system to allot time to an application.

    Multitasking is the CPUs ability to perform more than one task at a time. The Pentium was the first CPU to offer this capability. Prior to the Pentium, earlier CPUs offered either Co-operative Multitasking or Pre-emptive Multitasking. In either case it is not true multitasking, it is simulated.

  • Co-operative multitasking (task switching) is when the CPU switches back and forth between ap-plications that are loaded at the same time.
  • Pre-emptive Multitasking utilizes the services of the operating system to allot time to an applica-tion. After the application uses the predetermined amount of time it is pre-empted by the CPU so that another application may have some time.
    4. Put the following layers of the OSI model in order from 1-7.
    /1) Session
    2) Physical
    3) Data Link
    4) Application
    5) Network
    6) Presentation
    7) Transport
    3, 2, 6, 7, 1, 4, 5
    2, 3, 5, 7, 1, 6, 4
    4, 6, 1, 5, 2, 3, 7
    4, 6, 1, 7, 5, 3, 2
    5. Which of the following would represent the correct power connectors to the motherboard (planer board) if working with an XT or AT power supply? Choose that apply.
    P5
    P8
    P6
    P9
    P4
    Answer/Explanation
  • P8
  • P9

    The two Motherboard power connectors for the AT power supply are labeled P8 & P9. It is important to remember to keep the Black ground wires on each connector next to each other when you plug it in. Al-though it may be difficult to plug in incorrectly it has been done, and if done, wala, there goes a mother-board and a CPU, up in smoke.

    6. You are troubleshooting a Windows 98 system and have determined that the registry has errors and they need to be repaired. Which of the following commands will allow you to do this from a command prompt in Real Mode?
    SCANREG /RESTORE
    SCANREG /REPAIR
    SCANREG /FIX
    SCANREG /REDO
    Answer/Explanation
  • SCANREG /FIX

    C:\>scanreg /?
    Windows Registry Checker Usage: SCANREG [/

    7. Which of the following will allow you to print to a printer named printer1 that is located at print server2 when using a 16 bit application program?
    You are also required to have the ability to print to print devices that are located at LPT1 and LPT2.
    Run the net print\\PrtSrv\Printer02 command.
    Run the net use Lpt3 \\PrtSrv\Printer02 command.
    Create a new local printer port named PrtSrv\Printer02, and configure the printer to use the new port.
    Create a new local printer port named PrtSrv\Printer02. In the properties for the new port, select the option to print directly to the printer and configure the printer to use the new port.
    Answer/Explanation
  • Run the net use Lpt3 \\PrtSrv\Printer02 command. The net use command is the only method available for accessing a network printer from client computers that are running 16-bit DOS applications.

    Net print displays or controls print jobs and print queues. It is not used to perform the actual printing.
    C:\>net print /?
    The syntax of this command is:
    NET PRINT \\computername\sharename
    [\\computername] job# [/HOLD | /RELEASE | /DELETE]
    8. You get a call from a graphics designer named Carmen, who has installed a new application and an up-dated video driver on their Windows XP Professional computer. After the installation, Carmen started her computer and logged on, however, when she moves Windows and dialog boxes, the display becomes distorted. You need to ensure that Carmen can run her other applications without video distortion while you look for the correct video driver for the new application. What should you do?
    Use Device Manager to roll back the video driver.
    Run the Msconfig utility, and select the /BASEVIDEO check box.
    Use the Add Hardware Wizard to scan for new hardware. Install any found hardware.
    Restart the computer with the last known good configuration.
    Answer/Explanation
  • Use Device Manager to roll back the video driver.

    Device Manger in XP has the added functionality of rolling back to a previous driver. To do this in De-vice Manager right-click the device for which the previous version of the driver is desired and then click Properties, and select the Drivers tab and click Roll Back Driver.
    The Last Known Good Configuration is a copy of the hardware and registry configuration that was automatically saved by Windows XP on the last successful start up of Windows XP and may only be used if the logon was unsuccessful, which in this case Carmen had logged on thus this option is not available.
    The Msconfig utility is a system configuration utility. When the /basevideo check box is selected, the computer is run in VGA mode, but this will not restore the old driver.

    9. Which of the following would be indicative of ISDN BRI service?
    23B+1D
    2B+1D
    24B+1D
    3B+1D
    Answer/Explanation
  • ISDN BRI is represented as 2B+1D, or as 2B channels and 1D channel.

    64 Kbps per B channel (128 Kbps total) for data and the 16 Kbps D channel is used for signaling.
    23B + 1D would be for ISDN PRI service.
    24B + 1D is non existent. If this stated 24 DS0 channels then it would indicate a standard T1 line.3B + 1D is non existent.
    WAN Technology speeds.

    ISDN BRI 2 B channels @ 64Kbps each and 1 D channel @ 16Kbps
    ISDN PRI 23 B channels @ 64Kbps each and 1 B channel @ 64Kbps.
    T1 1.544 Mbps
    T3 44.7 Mbps
    FDDI 2 fiber rings with each capable of 100Mbps
    ATM From 1.5 Mbps up to 622 Mbps over fiber
    Frame Relay Up to 1.5 Mbps

    10. The 5-4-3 rule indicates that when using RG-58 cable there may be 5 segments, 4 repeaters and 3 populations with 30 nodes per population. Which of the following would be the maximum length per segment with your 10Base2 network?
    185 meters
    200 feet
    500 meters
    100 meters
    Answer/Explanation
  • RG-58 (10Base2) is allowed a maximum of 185 meters per segment.

    RG-8 or RG-11 (10Base5) Thicknet is allowed a maximum of 500 meters per segment. UTP (Unshielded twisted pair) or STP (Shielded twisted pair) is permitted a maximum of 100 meters. 200 feet is an erroneous number.


    Percentage:

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