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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 12 of 15

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Q111.
To display list of all files of the disk you would type

a.

DIR

b.

COPY

c.

DIR FILES

d.

DIR AUTOEXEC.BAT

Discuss
Answer: (a).DIR
Q112.
Maximum length allowed for primary name of a computer file under DOS is

a.

8

b.

12

c.

3

d.

2

Discuss
Answer: (a).8
Q113.
Command set which is correct according to its function is

a.

RD and MD

b.

DEL and ERASE

c.

CD and RD

d.

COPY and RENAME

Discuss
Answer: (b).DEL and ERASE
Q114.
The batch file use the extension

a.

.BAT

b.

.DOC

c.

.PRG

d.

.DOS

Discuss
Answer: (a)..BAT
Q115.
Command which is used to make a new directory is

a.

Md

b.

Cd

c.

Rd

d.

Nd

Discuss
Answer: (a).Md
Q116.
Internal commands in DOS are

a.

cls, rd label

b.

dir, ren, sys

c.

time, type, dir

d.

del, disk, copy

Discuss
Answer: (c).time, type, dir
Q117.
Which statement is correct?

a.

directories can be kept inside a file

b.

file cannot be kept inside a directory

c.

1 milisecond= 10^3 sec

d.

1milisecond= 10^6 sec

Discuss
Answer: (c).1 milisecond= 10^3 sec
Q118.
CHKDSK can be used to find

a.

disk's bad portion

b.

occupied space

c.

free space

d.

all of these

Discuss
Answer: (d).all of these
Q119.
DIR command is used to

a.

display a list of files in a directory

b.

display contents

c.

display types of files

d.

display confriguration files

Discuss
Answer: (a).display a list of files in a directory
Q120.
The delete file in MS-DOS can be recovered if you use the command mention below immediately, the command is

a.

DO NOT DELETE

b.

NO DELETE

c.

UNDELETE

d.

ONDELETE

Discuss
Answer: (c).UNDELETE
Page 12 of 15

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