Disk Operating System (DOS) MCQs > FREE SET-4

1. The autoexec.bat configuration file
A Is run after config.sys on system boot-up
B Contains all windows configuration files
C Is also known as config.sys
D Checks for system polarity

Free MCQs www.sharemcq.com     Answer: Option A
Explanation:
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2. Which combination of keys allows you to perform a warm boot?
A Ctrl+ESC
B Ctrl+Alt+DEL
C Ctrl+Shift+DEL
D Ctrl+Shift+ENTER

Free MCQs www.sharemcq.com     Answer: Option B
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3. Filename extensions help identify certain files. What filename extension identifies executable files?
A INF
B PRO
C EXE
D SYS

Free MCQs www.sharemcq.com     Answer: Option C
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4. Each time you turn the power switch on, which control files will the computer check?
A COMMAND.COM, IO.SYS
B COMMAND.COM, DATE.COM, TIME.COM
C COMMAND.COM, IO.SYS, MSDOS.SYS
D CHKDSK.EXE

Free MCQs www.sharemcq.com     Answer: Option C
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5. Which file executes commands in DOS?
A MS-DOS.SYS
B CONFIG.SYS
C COMMAND.COM
D SYSTEM.INI

Free MCQs www.sharemcq.com     Answer: Option C
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6. What switch would you use to view Smart drive statistics?
A /x
B /e:
C /s
D /o:n

Free MCQs www.sharemcq.com     Answer: Option C
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7. Which DOS command will configure a serial printing port?
A Parallel serial
B Mode LPT1=C0M1
C Direct LPTl=COMl
D Mode printer ()-serial ()

Free MCQs www.sharemcq.com     Answer: Option B
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8. Which DOS command is used to remove and scan memory and disk from viruses?
A MSAV
B DEFRAG
C SCANDISK
D VSAFE

Free MCQs www.sharemcq.com     Answer: Option A
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9. In DOS, what key would you press to step through the Config.sys and Autoexec.bat?
A F1
B F3
C F5
D F8

Free MCQs www.sharemcq.com     Answer: Option D
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10. Which of the following filename extension suggests that the file is a backup copy of another file?
A BAK *
B BAS
C COM
D TXT

Free MCQs www.sharemcq.com     Answer: Option A
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11. Which command is executed before the others when a computer is first turned on?
A Device=c:\\emm386.exe
B Device=c:\\dos\\himem.sys
C Prompt=$p$g
D Patch c:\\dos

Free MCQs www.sharemcq.com     Answer: Option B
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12. What is the order in which Command.com searches for programs to execute?
A EXE, COM, BAT
B EXE, BAT, COM
C COM, EXE, BAT
D BAT, COM, EXE

Free MCQs www.sharemcq.com     Answer: Option C
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13. While working with MS-DOS, which command is used to force DOS to recheck all clusters when reformatting a disk?
A FORMAT/B
B FORMAT/S
C FORMAT/8
D FORMAT/C

Free MCQs www.sharemcq.com     Answer: Option D
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14. What DOS program can you run to see which serial ports are detected?
A comdiag
B MSD
C command.com
D SDET

Free MCQs www.sharemcq.com     Answer: Option B
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15. Which DOS command allows you to compress existing disks and to create new compressed volumes?
A DEFRAG
B DBLSPACE
C SCANDISK
D MSAV

Free MCQs www.sharemcq.com     Answer: Option B
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16. Batch files contain a group of MS-DOS commands that are run in successive order. What filename extension identifies batch files?
A COM
B BAT
C EXE
D SYS

Free MCQs www.sharemcq.com     Answer: Option B
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17. Which of the following is loaded for CD-ROM support?
A VLM.EXE
B CDDEX.EXE
C DOSKEY.EXE
D MSCDEX.EXE

Free MCQs www.sharemcq.com     Answer: Option D
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18. While working with MS-DOS, which command is used to restore files that were backed up using the BACKUP command?
A COPY
B DISKCOPY
C RESTORE
D STORE

Free MCQs www.sharemcq.com     Answer: Option C
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19. While working with MS-DOS, which command is used to switch to the monochrome display from color display?
A MODE BLACK
B MODE B/W
C MODE MONO
D MODE CO40

Free MCQs www.sharemcq.com     Answer: Option C
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20. Which command is used to display the subdirectory structure of the currently logged drive and pause the screen display after each screenful of information?
A TREE
B DELTREE/F
C DIR | MORE
D TREE | MORE

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21. Which DOS command would allow you to redirect a printer?
A Type
B Capture
C Mode
D Print

Free MCQs www.sharemcq.com     Answer: Option C
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22. Which command will be used to display a column file compression ratio for each file of Double spaced disk?
A DIR/W
B DIR/S
C DIR/B
D DIR /C

Free MCQs www.sharemcq.com     Answer: Option D
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23. When MS-DOS formats a disk, it automatically creates the main directory on your disk, which is called the _________ directory.
A main
B root
C area
D border

Free MCQs www.sharemcq.com     Answer: Option B
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24. While working with MS-DOS, which command is used to display a list of deleted files that DOS can undelete?
A UNDELETE *.*
B UNDELETE/ALL
C UNDELETE/LIST
D UNDELETE

Free MCQs www.sharemcq.com     Answer: Option C
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25. 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?
A RESTORE A: *.*/S
B RESTORE A: *.*/M
C RESTORE A: *.*/N
D RESTORE A: *.*/L

Free MCQs www.sharemcq.com     Answer: Option B
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26. If you do not know the current time, which command will you use to display the time in DOS?
A COPY
B VER
C TIME
D FORMAT

Free MCQs www.sharemcq.com     Answer: Option C
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27. Which command of DOS is used to sort the file in reverse order?
A SORT > filename
B SORT < filename
C SORT/R < filename
D SORT/V < filename

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28. While working with MS-DOS, which command is used to copy all files from the currently logged drive and directory with the extension .TXT to the drive A?
A COPY A: *.TXT
B COPY *.TXT A:
C COPY *.TXT C:
D COPY *.TXT ALL.TXT

Free MCQs www.sharemcq.com     Answer: Option B
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29. Which two of the following DOS commands are used to display or set the date and time of your computer's internal clock?
A VER
B HOUR
C DATE
D DAY

Free MCQs www.sharemcq.com     Answer: Option C
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30. Which command below will instruct DOS to do a "quick format".
A FORMAT A: /QUICK
B FORMAT A: /Q
C FORMAT A: /QU
D FORMAT A: /QF

Free MCQs www.sharemcq.com     Answer: Option B
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31. The Fdisk command in DOS ________ .
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

Free MCQs www.sharemcq.com     Answer: Option A
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32. To view any currently running Terminate Stay Resident (TSR's) programs you could type:
A Memory
B MEM
C SYS /M
D MEMMAKER

Free MCQs www.sharemcq.com     Answer: Option B
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33. Which command is used to delete the directory and all its contents in one step?
A DEL *.*
B RD
C DELTREE
D CD

Free MCQs www.sharemcq.com     Answer: Option C
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34. While working with MS-DOS, which command is used to compare the disk in drive A with the disk in drive B, specifying to compare only first side of each disk and only the first 8 sectors of each track?
A DISKCOPY A: B:/8
B DISKCOMP A: B:/l/8
C DISKCOMP A: B:/8
D DISKCOMP A: B:/l

Free MCQs www.sharemcq.com     Answer: Option B
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35. When you create a subdirectory within a directory, the process is known as _____
A directing
B making
C backing
D nesting

Free MCQs www.sharemcq.com     Answer: Option D
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36. Where do you load the CD Rom drivers?
A Autoexec.bat
B Control Panel/Drivers
C Into Upper memory
D Config.sys

Free MCQs www.sharemcq.com     Answer: Option D
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37. What command can you add to the AUTOEXEC.BAT file so that your computer temporarily stops in the execution of the file before continuing?
A Pause
B Halt
C Wait x.xx seconds
D Wait until Files="x"

Free MCQs www.sharemcq.com     Answer: Option A
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38. Filename extensions help identify certain files. What filename extension identifies command files?
A COM
B BAT
C EXE
D SYS

Free MCQs www.sharemcq.com     Answer: Option A
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39. Which command is used to send the contents of file named REPORT.TXT to the standard printing device?
A TYPE REPORT.TXT TO PRINTER
B TYPE REPORT.TXT > PRN
C TYPE REPORT.TXT | PRN
D TYPE REPORT.TXT | PRINTER

Free MCQs www.sharemcq.com     Answer: Option B
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40. The __________ command allows you to modify the default prompt to provide other information
A prompt
B windows
C cursor
D click

Free MCQs www.sharemcq.com     Answer: Option A
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41. Which command is used to delete the directory that is empty?
A DEL *.*
B RD
C ERASE
D MD

Free MCQs www.sharemcq.com     Answer: Option B
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42. While working with MS-DOS, which command is used to specify the colour display, 40 columns and color?
A MODE COLOUR
B MODE/C
C MODE CO40
D MODE CHANGE

Free MCQs www.sharemcq.com     Answer: Option C
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43. What is a TSR?
A test status request
B terminate and stay resident program
C take status request
D token set ready

Free MCQs www.sharemcq.com     Answer: Option B
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44. A _________ boot is when DOS is restarted without turning off the computer.
A warm
B reboot
C shutdown
D system up

Free MCQs www.sharemcq.com     Answer: Option A
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45. What command would you type to list all of the files in the current directory?
A DIR
B LIST ALL
C SHOW
D SHOW ME

Free MCQs www.sharemcq.com     Answer: Option A
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46. Suppose you had an incurable computer virus and decided to wipe out all the data and partitions on your hard drive and reformat. What is the order in which you must delete the partitions?
A Extended, Logical, Primary
B Primary, Extended, Logical
C Logical, Extended, Primary
D Logical, Primary, Extended

Free MCQs www.sharemcq.com     Answer: Option C
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47. Which command is used to suppress the prompt that asks you to confirm that you want to delete the directory?
A DELTREE
B DELTREE/F
C DEL*.*
D ERASE *.*

Free MCQs www.sharemcq.com     Answer: Option B
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48. While working with MS-DOS, which command is used to undelete a bunch of files with extension DOC that you have just deleted?
A UNDELETE
B UNDELETE *.DOC
C UNDELETE/ALL
D UNDELETE/LIST

Free MCQs www.sharemcq.com     Answer: Option B
Explanation:
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49. Which command of MS-DOS is used to copy only files that have been modified on or after the date you specify?
A XCOPY/D : date
B COPY/D : date
C COPY/M
D XCOPY/V

Free MCQs www.sharemcq.com     Answer: Option A
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50. Which DOS command will format a floppy disk and transfer the system files
A SYS C: A:
B SYS A:
C FORMAT A: /S
D FORMAT A: /T

Free MCQs www.sharemcq.com     Answer: Option C
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