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  • Question
  • Which of the following filename extension suggests that the file is a backup copy of another file?


  • Options
  • A. BAK *
  • B. BAS
  • C. COM
  • D. TXT
  • E. None of the above

  • Correct Answer
  • BAK * 


  • Disk Operating System (DOS) problems


    Search Results


    • 1. What command can you add to the AUTOEXEC.BAT file so that your computer temporarily stops in the execution of the file before continuing?

    • Options
    • A. Pause
    • B. Halt
    • C. Wait x.xx seconds
    • D. Wait until Files="x"
    • E. None of the above
    • Discuss
    • 2. What command is used to reset a MODEM when using the "AT Command Set"?

    • Options
    • A. ATR
    • B. ATZ
    • C. DTR
    • D. DCE
    • E. None of the above
    • Discuss
    • 3. While working with MS-DOS, which command is used to sort the file in ascending order?

    • Options
    • A. SORT filename
    • B. SORT < filename
    • C. SORT > filename
    • D. SORT | filename
    • E. None of the above
    • Discuss
    • 4. After searching the current directory where does command.com search next?

    • Options
    • A. C:\DOS\UTILITIES
    • B. Config.sys
    • C. Autoexec.bat
    • D. The Path Statement
    • E. None of the above
    • Discuss
    • 5. The _____ switch instructs DOS to display the directory list in a wide format.

    • Options
    • A. /W
    • B. /O
    • C. /P
    • D. /B
    • E. None of the above
    • Discuss
    • 6. The COPY command of MS-DOS, is used to:

    • Options
    • A. copying files from one floppy disk to another floppy disk
    • B. copying one or more files on the same disk or directory
    • C. copying two or more files into a single file
    • D. All of the above
    • E. None of the above
    • Discuss
    • 7. While working with MS-DOS, which command is used to specify the size of the disk to format.

    • Options
    • A. FORMAT/F : size
    • B. FORMAT/N : sector
    • C. FORMAT/T : tracks
    • D. FORMAT/V
    • E. None of the above
    • Discuss
    • 8. Match the device driver HIMEM.SYS to its operation

    • Options
    • A. Supports (ANSI) terminal emulation
    • B. Manages the use of extended memory
    • C. Uses expanded memory on an 80386 processor
    • D. Supports code page switching
    • E. None of the above
    • Discuss
    • 9. The Fdisk command in DOS _____ .

    • Options
    • A. Partitions the hard drive for use
    • B. Fixes erroneous hard drive
    • C. Formats data sectors on a hard drive
    • D. Checks hard drive for lost clusters
    • E. None of the above
    • Discuss
    • 10. While working with MS-DOS, which command is used to restore only those files modified since the last backup, from the drive A to the currently logged drive or directory?

    • Options
    • A. RESTORE A: *.*/S
    • B. RESTORE A: *.*/M
    • C. RESTORE A: *.*/N
    • D. RESTORE A: *.*/L
    • E. None of the above
    • Discuss


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