Disk Operating System MCQ of Computer Science SET-12 with Answers

We have provide here is the list of Disk Operating System MCQs for Computer Engineering preparation competitive exams. Each question has four options followed by the right answer.

MCQ Questions for Disk Operating System with Answers

Q1. Which statement is correct?

(i) Directories can be kept inside a file
(ii) Files can not be kept inside a directory
(iii) 1 millisec = 10 ^ 3 sec
(iv) None of above

(iii) 1 millisec = 10 ^ 3 sec

Q2. Which DOS command is used to remove and scan memory and disk from viruses?

(i) MSAV
(ii) DEFRAG
(iii) SCANDISK
(iv) VSAFE

(i) MSAV

Q3. The batch file uses the extension

(i) .BAT
(ii) .DOC
(iii) .PRG
(iv) .DOS

(i) .BAT

Q4. DEL command is used to

(i) Delete files
(ii) Delete directory
(iii) Delete labels
(iv) Delete contents of file

(i) Delete files

Q5. After searching the current directory where does command.com search next?

(i) C:DOSUTILITIES
(ii) Config.sys
(iii) Autoexec.bat
(iv) The Path Statement

(iv) The Path Statement

Q6. With DOS, you may use the *' and?’:

(i) When changing the default settings
(ii) To represent unspecified characters in a filename
(iii) Instead of wildcard characters
(iv) In the extension but not in the drive name or the file name

(ii) To represent unspecified characters in a filename

Q7. Which command is used to get the current date only?

(i) Date
(ii) Time
(iii) Second
(iv) All of the above

(i) Date

Q8. Which command is used to delete the directory and all its contents in one step?

(i) DEL .
(ii) RD
(iii) DELTREE
(iv) CD

(iii) DELTREE

Q9. Which of the following could be a valid DOS file specification?

(i) NOSFILE.POST
(ii) NOSFILE.P.OST
(iii) NOSFILE.DOC
(iv) NOST.FILEDOC

(ii) NOSFILE.P.OST

Q10. External command in DOS are

(i) Copy, edit, sys, format
(ii) Edit, sys, chkdsk
(iii) Chkdsk, prompt, date
(iv) Sys, ver, vol

(ii) Edit, sys, chkdsk

Q11. What type of commands are individual programs kept, as separate files on the hard disk (DOS diskette)?

(i) External
(ii) Internal
(iii) Change
(iv) File

(i) External

Q12. Which of the following operating does not implement multitasking truly?

(i) Windows 98
(ii) Windows NT
(iii) Windows XP
(iv) MS DOS

(iv) MS DOS

Q13. SYS command is used to

(i) Copy DOS system files to new disk
(ii) Copy DOS configuration files to a new disk
(iii) Update the DOS system files
(iv) None of above

(i) Copy DOS system files to new disk

Q14. Which of the following represents a correct sequence for the boot process on a DOS machine?

(i) AUTOEXECBAT, CONFIG.SYS
(ii) CONFIG.SYS, AUTOEXEC.BAT
(iii) AUTOEXECBAT COMMAND.COM
(iv) CONFIG.BAT, AUTOEXEC.BAT

(ii) CONFIG.SYS, AUTOEXEC.BAT

Q15. Which of the following command display the name of files in sorted order?

(i) Dir/o:n
(ii) Dir/so
(iii) Dir/an
(iv) Dir/ah

(i) Dir/o:n

Q16. To copy the hidden system files of DOS to another disk you can use the command

(i) Copy
(ii) Ren
(iii) Sys
(iv) Diskcopy

(iii) Sys

Q17. Which command in DOS can be used to recover accidentally deleted files?

(i) UNDELETE
(ii) DELETE/CANCEL
(iii) RESTORE
(iv) RECOVER

(i) UNDELETE

Q18. Internal command in Dos are

(i) Cls, rd label
(ii) Dir, ren, sys
(iii) Time, type, dir
(iv) Del, disk copy, label

(iii) Time, type, dir

Q19. Which command is used to backup in DOS 6+ Version

(i) BACKUP
(ii) MSBACKUP
(iii) MSBACKEDUP
(iv) All of the above

(ii) MSBACKUP

Q20. While working with MS-DOS, which command is used to rename a file named file1.doc to file2.doc from a different directory called dir1?

(i) Ren2.doc \dir\file1.doc
(ii) Ren file1.doc file2.doc
(iii) Ren .doc\dir.doc
(iv) Ren \dir1\file1.doc file2.doc

(iv) Ren \dir1\file1.doc file2.doc

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