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CSE :: Disk Operating System [DOS]

  1. You suspect a virus has entered your computer. What will not be affected by the virus?

  2. A.
    CMOS
    B.
    Boot sector
    C.
    Floppy disks
    D.
    Program files
    E.
    None of the above

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  3. What is a TSR?

  4. A.
    test status request
    B.
    terminate and stay resident program
    C.
    take status request
    D.
    token set ready
    E.
    token steady route

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  5. What does MSCDEX.EXE do?

  6. A.
    Configures hard drives
    B.
    it's a SCSI driver
    C.
    BIOS setup
    D.
    it's a CD-ROM DOS driver
    E.
    None of the above

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  7. Upper Memory blocks are located where?

  8. A.
    Conventional Memory
    B.
    Extended Memory
    C.
    Expanded memory
    D.
    Reserved Memory
    E.
    None of the above

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  9. Batch files contain a group of MS-DOS commands that are run in successive order. What filename extension identifies batch files?

  10. A.
    COM
    B.
    BAT
    C.
    EXE
    D.
    SYS
    E.
    None of the above

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  11. After upgrading your computer to a new DOS version, an older application displays the error message "Incorrect DOS version". What should you do to run this application?

  12. A.
    Use the DOS+ command
    B.
    Use the SETVER command
    C.
    Restore the old DOS version
    D.
    Contact the application's vendor support line
    E.
    None of the above

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  13. When executed from a bootable hard drive, which command will make a formatted floppy disk bootable?

  14. A.
    COPY C:\DOS\COMMAND.COM A:\
    B.
    ATTRIB C:\*.SYS A:\
    C.
    XCOPY C:\DOS\*.* A:\
    D.
    SYS C: A:
    E.
    None of the above

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  15. Which of the following commands allows you to make a directory?

  16. A.
    MAKE
    B.
    DIR
    C.
    MD
    D.
    DD
    E.
    None of the above

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  17. While working with MS-DOS, which command is used to specify the colour display, 40 columns and color?

  18. A.
    MODE COLOUR
    B.
    MODE/C
    C.
    MODE CO40
    D.
    MODE CHANGE
    E.
    None of the above

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  19. Which DOS command allows you to compress existing disks and to create new compressed volumes?

  20. A.
    DEFRAG
    B.
    DBLSPACE
    C.
    SCANDISK
    D.
    MSAV
    E.
    None of the above

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