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Welcome to the Disk Operating System (DOS) MCQs Page

Dive deep into the fascinating world of Disk Operating System (DOS) with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Disk Operating System (DOS), a crucial aspect of Operating System. In this section, you will encounter a diverse range of MCQs that cover various aspects of Disk Operating System (DOS), from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Operating System.

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Check out the MCQs below to embark on an enriching journey through Disk Operating System (DOS). Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Operating System.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Disk Operating System (DOS). You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Disk Operating System (DOS) MCQs | Page 3 of 15

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Q21.
What does MSCDEX.EXE do?

a.

Configures hard drives

b.

it's a SCSI driver

c.

BIOS setup

d.

it's a CD-ROM DOS driver

Discuss
Answer: (d).it's a CD-ROM DOS driver
Q22.
Batch files contain a group of MS-DOS commands that are run in successive order. What filename extension identifies batch files?

a.

COM

b.

BAT

c.

EXE

d.

SYS

Discuss
Answer: (b).BAT
Q23.
After upgrading your computer to a new DOS version, an older application displays the error message "Incorrect DOS version". What should you do to run this application?

a.

Use the DOS+ command

b.

Use the SETVER command

c.

Restore the old DOS version

d.

Contact the application's vendor support line

Discuss
Answer: (b).Use the SETVER command
Q24.
When executed from a bootable hard drive, which command will make a formatted floppy disk bootable?

a.

COPY C:\DOS\COMMAND.COM A:\

b.

ATTRIB C:\*.SYS A:\

c.

XCOPY C:\DOS\*.* A:\

d.

SYS C: A:

Discuss
Answer: (d).SYS C: A:
Q25.
Which of the following commands allows you to make a directory?

a.

MAKE

b.

DIR

c.

MD

d.

DD

Discuss
Answer: (c).MD
Q26.
While working with MS-DOS, which command is used to specify the colour display, 40 columns and color?

a.

MODE COLOUR

b.

MODE/C

c.

MODE CO40

d.

MODE CHANGE

Discuss
Answer: (c).MODE CO40
Q27.
Which DOS command allows you to compress existing disks and to create new compressed volumes?

a.

DEFRAG

b.

DBLSPACE

c.

SCANDISK

d.

MSAV

Discuss
Answer: (b).DBLSPACE
Q28.
The MODE command of MS-DOS is used to

a.

display information about several types of devices installed in your computer

b.

provide various types of control over your printers

c.

make changes of the current display

d.

All of the above

Discuss
Answer: (d).All of the above
Q29.
Which of the following applies to external DOS commands?

a.

External commands reside in RAM until called

b.

External commands are stored on disk separately from COMMAND.COM

c.

External commands must always be used with the /e switch

d.

External commands can only be executed from a batch file.

Discuss
Answer: (b).External commands are stored on disk separately from COMMAND.COM
Q30.
Which command is used to delete the directory that is empty?

a.

DEL *.*

b.

RD

c.

ERASE

d.

MD

Discuss
Answer: (b).RD
Page 3 of 15

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