Disk Operating System MCQ of Computer Science SET-4 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. To conserve battery power on your laptop computer. What DOS v6.x command should you use?

(i) Powermon.exe
(ii) Power.exe
(iii) Idel.com
(iv) Pw.sys

(ii) Power.exe

Q2. CHKDSK can be used to find

(i) Disk’s bad portion
(ii) Occupied space
(iii) Free space
(iv) All of above

(iv) All of above

Q3. Which is LEAST likely to interfere with upgrading to a newer DOS version?

(i) ROM BIOS
(ii) Video controller
(iii) Compressed drives
(iv) Existing backup files

(ii) Video controller

Q4. While using the DIR command, you can use certain switches with it. Which one of the following cannot be used with DIR?

(i) /P
(ii) /W
(iii) /S
(iv) /T

(iv) /T

Q5. To view any currently running Terminate Stay Resident (TSR’s) programs you could type:

(i) Memory
(ii) MEM
(iii) SYS /M
(iv) MEMMAKER

(ii) MEM

Q6. To display the list of all the file of the disk you would type

(i) DIR
(ii) COPY
(iii) DIR FILES
(iv) DIR AUTOEXEC.BAT

(i) DIR

Q7. Which command be used to ask you to confirm that you want to delete the directory?

(i) Deltree
(ii) Deltree/f
(iii) Del ./p
(iv) Erase .

(iii) Del ./p

Q8. Which two commands enable you to move between directories?

(i) CD
(ii) CHDIR
(iii) MOVE
(iv) MOVE DIR

(i) CD

Q9. Which of the following applies to Internal DOS commands?

(i) Internal commands can be run whenever the DOS prompt is displayed
(ii) Internal commands are reserved for DOS-level programming
(iii) Internal commands can only be executed from a batch file
(iv) Internal commands are stored on disk separately from COMMAND.COM

(i) Internal commands can be run whenever the DOS prompt is displayed

Q10. Which of the following is loaded for CD-ROM support?

(i) VLM.EXE
(ii) CDDEX.EXE
(iii) DOSKEY.EXE
(iv) MSCDEX.EXE

(iv) MSCDEX.EXE

Q11. Which internal DOS command clears the screen and places the DOS prompt in the upper left corner of the screen?

(i) cls
(ii) close
(iii) quit
(iv) exit

(i) cls

Q12. DOS system file consists of

(i) IBMBIO.COM, IBMDOS.COM, COMMAND.COM
(ii) COMMAND.COM, IBMBIO.COM, FORMAT.COM
(iii) SYS.COM,IBMBIO.COM,IBMDOS.COM
(iv) None of the above

(i) IBMBIO.COM, IBMDOS.COM, COMMAND.COM

Q13. Which command is used to copy all files from drive A with extension .TXT to the currently logged drive and directory?

(i) COPY a: *.TXT
(ii) COPY *.TXT A:
(iii) COPY *.TXT C:
(iv) COPY *.TXT ALL.TXT

(i) COPY a: *.TXT

Q14. Generally, the DATE is entered in the form

(i) DD-YY-MM
(ii) YY-DD-MM
(iii) MM-YY-DD
(iv) MM-DD-YY

(iv) MM-DD-YY

Q15. Which combination of keys allows you to perform a warm boot?

(i) Ctrl+ESC
(ii) Ctrl+Alt+DEL
(iii) Ctrl+Shift+DEL
(iv) Ctrl+Shift+ENTER

(ii) Ctrl+Alt+DEL

Q16. While working with MS-DOS, which command is used to force DOS to recheck all clusters when reformatting a disk?

(i) FORMAT/B
(ii) FORMAT/S
(iii) FORMAT/8
(iv) FORMAT/C

(iv) FORMAT/C

Q17. Which command is used to suppress the prompt that asks you to confirm that you want to delete the directory?

(i) DELTREE
(ii) DELTREE/F
(iii) DEL.
(iv) ERASE .

(ii) DELTREE/F

Q18. In DOS, what key would you press to step through the Config.sys and Autoexec.bat?

(i) F1
(ii) F3
(iii) F5
(iv) F8

(iv) F8

Q19. As per symbolic notation of DOS, which of the following indicates the ROOT directory

(i) *
(ii) >
(iii) /
(iv) None of the above

(iv) None of the above

Q20. What command can you add to the AUTOEXEC.BAT file so that your computer temporarily stops in the execution of the file before continuing?

(i) Pause
(ii) Halt
(iii) Wait x.xx seconds
(iv) Wait until Files=”x”

(i) Pause

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