Disk Operating System MCQ of Computer Science SET-11 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 is the valid filename assign in MS-DOS?

(i) Ram*.txt
(ii) Ram?.doc
(iii) Ram_$.txt
(iv) None of above

(iii) Ram_$.txt

Q2. What command is used to reset a MODEM when using the “AT Command Set”?

(i) ATR
(ii) ATZ
(iii) DTR
(iv) DCE

(ii) ATZ

Q3. Each time you turn the power switch on, which control files will the computer check?

(i) COMMAND.COM, IO.SYS
(ii) COMMAND.COM, DATE.COM, TIME.COM
(iii) C0MMAND.COM, IO.SYS, MSDOS.SYS
(iv) CHKDSK.EXE

(iii) C0MMAND.COM, IO.SYS, MSDOS.SYS

Q4. The buffers statement is found in what file?

(i) Config.sys
(ii) Autoexec.ncf
(iii) Autoexec.bat
(iv) Neb.cfg

(i) Config.sys

Q5. FAT stands for

(i) File Accomodation Table
(ii) File Access Tape
(iii) File Allocation Table
(iv) File Activity Table

(iii) File Allocation Table

Q6. Maximum length of DOS command using any optional parameter is

(i) 26 characters
(ii) 87 characters
(iii) 127 characters
(iv) None of above

(iii) 127 characters

Q7. Which of the following file names are invalid in MSDOS?

(i) MYFILE.DOS
(ii) CHECK$.(1)
(iii) Verified.###
(iv) Qwerty.1?3

(iv) Qwerty.1?3

Q8. Match the device driver HIMEM.SYS to its operation

(i) Supports (ANSI) terminal emulation
(ii) Manages the use of extended memory
(iii) Uses expanded memory on an 80386 processor
(iv) Supports code page switching

(ii) Manages the use of extended memory

Q9. Which file executes commands in DOS?

(i) MS-DOS.SYS
(ii) CONFIG.SYS
(iii) COMMAND.COM
(iv) SYSTEM.INI

(iii) COMMAND.COM

Q10. What file contains commands that configure systems devices?

(i) Command.com
(ii) Config.sys
(iii) Autoexec.bat
(iv) Win.ini

(ii) Config.sys

Q11. To copy the file command.com from drive c: to drive a:

(i) Drive c: copy drive a:\command.com
(ii) C:A: copy command.com
(iii) Copy c:\command.com a:
(iv) Both (ii) & (iii)

(iii) Copy c:\command.com a:

Q12. CHKDSK command is used to

(i) Analyze the hard disk error
(ii) Diagnose the hard disk error
(iii) Report the status of files on disk
(iv) All of the above

(iv) All of the above

Q13. Which type of command in DOS needs additional files for their execution?

(i) Internal commands
(ii) External commands
(iii) Batch commands
(iv) Redirectors

(ii) External commands

Q14. While working with MS-DOS which command is used to copy all files with extension .txt into one file named all.txt?

(i) Copy a: *.txt
(ii) Copy *.txt a:
(iii) Copy *.txt c:
(iv) Copy *.txt all.txt

(iv) Copy *.txt all.txt

Q15. While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?

(i) COPY
(ii) DISKCOPY
(iii) TIME
(iv) RENAME

(i) COPY

Q16. Which command below will instruct DOS to do a “quick format”.

(i) FORMAT A: /QUICK
(ii) FORMAT A: /Q
(iii) FORMAT A: /QU
(iv) FORMAT A: /QF

(ii) FORMAT A: /Q

Q17. Using the _ switch causes FDISK to display the partition status of your hard disk without executing FDISK.

(i) /show
(ii) /display
(iii) /status
(iv) /part

(iii) /status

Q18. DIR command is used to

(i) Display a list of files in a directory
(ii) Display contents of files in directory
(iii) Display type of files in a sub directory
(iv) All of above

(i) Display a list of files in a directory

Q19. The Fdisk command in DOS _ .

(i) Partitions the hard drive for use
(ii) Fixes erroneous hard drive
(iii) Formats data sectors on a hard drive
(iv) Checks hard drive for lost clusters

(i) Partitions the hard drive for use

Q20. Which command of MS-DOS is used to copy only files that have been modified on or after the date you specify?

(i) XCOPY/D : date
(ii) COPY/D : date
(iii) COPY/M
(iv) XCOPY/V

(i) XCOPY/D : date

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