Disk Operating System (DOS)

Multiple Choice questions & answers are available for a Computer Science students to clear GAT, NTS, ECAT exams, various technical interview, competitive examination, and other entrance exam.Disk Operating System (DOS) is the important Topic for a computer science and technical students and one should practice these Mcqs to grasp good knowledge on the topic.

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1.
Which command of MS-DOS is used to copy only files that have been modified on or after the date you specify?

XCOPY/D : date

COPY/D : date

COPY/M

XCOPY/V

2.
Which DOS command will format a floppy disk and transfer the system files

SYS C: A:

SYS A:

FORMAT A: /S

FORMAT A: /T

3.
While working with MS-DOS, which command is used to restore files that were backed up using the BACKUP command?

COPY

DISKCOPY

RESTORE

STORE

4.
The term TSR is an abbreviation for:

Terminate Stay Ready

Testing System Read

Terminal Still Ready

Terminate Stay Resident

5.
Using the _____ switch causes FDISK to display the partition status of your hard disk without executing FDISK.

/show

/display

/status

/part

6.
While working with MS-DOS, which command is used to undelete a bunch of files with extension DOC that you have just deleted?

UNDELETE

UNDELETE *.DOC

UNDELETE/ALL

UNDELETE/LIST

8.
You want to view the contents of autoexec.bat on the screen using the “type” command, but it scrolls by too quickly, what switch do you use to make it pause?

Type c:autoexec.bat /p

Type c:autoexec.bat/more

Type c:autoexec.bat|pause

Type c:autoexec.bat|more.

9.
What file contains commands that configure systems devices?

Command.com

Config.sys

Autoexec.bat

Win.ini

10.
Which command is used to suppress the prompt that asks you to confirm that you want to delete the directory?

DELTREE

DELTREE/F

DEL*.*

ERASE *.*

13.
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?

Extended, Logical, Primary

Primary, Extended, Logical

Logical, Extended, Primary

Logical, Primary, Extended

14.
While working with MS-DOS, which command is used to display the contents of a file and pause the display after each screenful of information?

TYPE filename | MORE

CAT filename | MORE

CAT filename | pg

MORE filename

15.
Which DOS command is used to detect, diagnose and repair logical and physical disk errors on both, uncompressed and Double space compressed drive?

DEFRAG

DBLSPACE

SCANDISK

MSAV

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