Disk Operating System (DOS) MCQ Questions & Answers

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Each section contains 100 MCQs on Disk Operating System (DOS) .

You suspect a virus has entered your computer. What will not be affected by the virus?

A) CMOS B) Boot sector C) Floppy disks D) Program files E) None of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is a TSR?

A) test status request B) terminate and stay resident program C) take status request D) token set ready E) token steady route

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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 E) None of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Upper Memory blocks are located where?

A) Conventional Memory B) Extended Memory C) Expanded memory D) Reserved Memory E) None of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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 E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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 E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

When executed from a bootable hard drive, which command will make a formatted floppy disk bootable?

A) COPY C:DOSCOMMAND.COM A: B) ATTRIB C:*.SYS A: C) XCOPY C:DOS*.* A: D) SYS C: A: E) None of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following commands allows you to make a directory?

A) MAKE B) DIR C) MD D) DD E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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 E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which DOS command allows you to compress existing disks and to create new compressed volumes?

A) DEFRAG B) DBLSPACE C) SCANDISK D) MSAV E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Disk Operating System (DOS) MCQ Questions & Answers | Computer Science