About DOS

Following are some of the multiple choice questions on the DOS with answers that will help the students in developing their knowledge.

DOS MCQ

1. Which command be used to ask you to confirm that you want to delete the directory?

  • Deltree
  • Deltree/f
  • Del *.*/p
  • Erase *.*

2. Which command lists the contents of current directory of a disk

  • Copy
  • Tree
  • Cd
  • Dir

3. Which command displays the directory list including files in tree structure?

  • Dir/s/f
  • Tree/f
  • Tree/s/f
  • Dir/f

4. Which file is the batch file that is read while booting a computer?

  • Autoexec.bat
  • Auto-batch
  • Autoexecutive.bat
  • Auto.bat

5. DEL command is used to

  • Delete files
  • Delete directory
  • Delete labels
  • Delete contents of file

6. You can copy command.com to your disk from hard disk

  • true
  • false

7. Disk copy command in DOS is used to

  • Copy a file
  • Copy contents of one floppy disk to another
  • Copy contents of CD-ROM to another
  • All of the above

8. External command in DOS are

  • Copy, edit, sys, format
  • Edit, sys, chkdsk
  • Chkdsk, prompt, date
  • Sys, ver, vol

9. RESTORE command is used to

  • Restore files from disks made using the BACKUP command
  • Restore files which are deleted
  • Restore files from recycle bin
  • Restore files which are deleted recently

10. The best data type to choose for a postcode would be

  • Number
  • Text
  • Date/Time
  • Currency

11. Which command is used to make a new directory?

  • Md
  • Cd
  • Rd
  • None of above

12. Which command is used to get the current date only?

  • Second
  • Time
  • Date
  • All of the above

13. Which command is used to copy files?

  • Copy
  • Diskcopy
  • Type
  • All of the above

14. Which command is used to see the sub-directory structure of drive?

  • Subtree
  • List
  • Subdir
  • Tree

15. The vol command is used to

  • See the value of list
  • See the variety of language
  • See the volume of largest
  • See the disk volume label

16. Format command is used to

  • Prepare a blank disk
  • Create a new blank disk from a used one
  • Both of above
  • None of above

17. Copy and Xcopy are same in the sense

  • Both are internal command of DOS
  • Both are external commands of DOS
  • Both can be used to copy file or group of files
  • Both a and b

18. CHKDSK command is used to

  • Analyze the hard disk error
  • Diagnose the hard disk error
  • Report the status of files on disk
  • All of the above

19. Which command is used to delete the directory that is empty?

  • Del *.*
  • RD
  • Erase
  • MD

20. To copy the hidden system files of DOS to another disk you can use the command

  • Copy
  • Ren
  • Sys
  • Diskcopy

21. The command used to copy a file named temp.doc from drive C: to drive A: is

  • Copy temp.doc to a:
  • Copy c:\temp.doc a:
  • Copy c: a:
  • Copy temp a: c:

22. Which statement is valid about "TIME" command?

  • Time command is used to display and allow changes to the system time
  • Time format can be changed by changing in country setting in config.sys file
  • MS DOS displays the time in 12-hour or 24-hour format
  • All of above

23. The time command is used to display _____ time.

  • US time
  • System Time
  • Julian Time
  • Greenwich Mean Time

24. Which command creates a directory or subdirectory?

  • Dir
  • Mkdir
  • Md
  • Both b and c

25. Which command will be used to display a file within the specified directory of pathname?

  • Dir \pathname\filename
  • Dir \pathname\pathname
  • Dir/ch
  • Dir \pathname

26. Which command displays current directory name or change from one to another?

  • Chdir
  • Cd
  • Mkdir
  • Both a and b

27. In which version of DOS. CHKDSK command has been changed to SCANDISK?

  • 5.0
  • 6.2
  • 6.0
  • none of these

28. Which command is used to display the subdirectory structure of the currently logged drive and pause the screen display after each screen full of the information?

  • Tree
  • Deltree/f
  • Tree | more
  • Dir | more

29. Which command should be used to display all files within the specified subordinate directory of the subdirectory?

  • Dir \ pathname
  • Dir \ pathname\pathname
  • Dir / ch
  • Dir \pathname\filename

30. Factor: x3 + 1

  • (x + 1)3
  • (x+1)(x2 - x + 1)
  • (x - 1) (x2 + x - 1)
  • (x + 1)(x2 - 2x + 1)

31. List all the possible rational zeros h(x) = x3 - 5x2+2x+12

  • 1,2,3,4,6,12
  • 1,2,6,12
  • 1,2,3,4,6,12,-1,-2,-3,-4,-6,-12
  • none of the above

32. A list of records is a ____________.

  • Table
  • Field
  • Guide
  • none of the above

33. List all of the possible rational zeros p(x) = 3x2+x+7

  • -1/3, -7/3, -1, -7, 1/3,7/3,1,7
  • 1/3,7/3,1,7
  • 1, 7, 14, 21
  • Both A & B

34. Decide if (x-3) is a factor of 3x3+10x2-x-12

  • Yes, it is a factor!
  • No, it is not a factor!

35. What is the remainder when a3 - 4 is divided by a+2?

  • -2
  • -6
  • -12
  • 0

36. 9x2 - 49y6

  • (3x + 7y3)(3x + 7y3) 
  • (3x - 7y3)(3x + 7y3) 
  • (3x - 7y3)(3x - 7y3) 
  • Prime

37. What does 'MS' from MS-DOS stand for?

  • Motionless
  • Microsoft
  • Maybe Supper
  • All of above

38. What was MS-DOS' final release?

  • Windows 98
  • Windows 95
  • Windows Me
  • All of above

39. Who is the developer of MS-DOS?

  • Mozilla
  • Microsoft
  • Chrome
  • Both A & B

40. What is the full name of DOS?

  • Dove Orange Snake
  • Disc Operating System
  • Dallas Original Sword
  • none of the above

41. The extension name used for excel is ____________.

  • .ppt
  • .doc
  • .xls
  • .txt

42. MD STANDS FOR

  • MAKE A DIRECTORY
  • MARK A DIRECTORY
  • NONE OF THESE
  • Both A & B

43. CD STANDS FOR

  • MAKE A DIRECTORY
  • CHANGE DIRECTORY
  • COPY DIRECTORY
  • none of the above

44. The Command used to create a file

  • copy
  • copy con
  • md
  • cd

45. The command to save the file in MS DOS

  • ctrl+v
  • ctrl+b
  • ctrl+a
  • ctrl+z

46. The extension name used for word document is ____________.

  • .ppt
  • .doc
  • .xls
  • .txt

47. What is the successor of MS-DOS?

  • Microsoft Windows
  • MacOS
  • Linux
  • none of the above

48. What was MS-DOS initial release date?

  • 1979
  • 1981
  • 1992
  • none of the above

49. The extension name used for notepad is ____________.

  • .ppt
  • .doc
  • .xls
  • .txt

50. THE COMMAND USED TO OPEN THE DIRECTORY OR FOLDER

  • MD
  • CD
  • RD
  • BD

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