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Welcome to the UNIX System MCQs Page

Dive deep into the fascinating world of UNIX System with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of UNIX System, a crucial aspect of UGC CBSE NET Exam. In this section, you will encounter a diverse range of MCQs that cover various aspects of UNIX System, 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 UGC CBSE NET Exam.

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Check out the MCQs below to embark on an enriching journey through UNIX System. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of UGC CBSE NET Exam.

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

UNIX System MCQs | Page 6 of 7

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Q51.
Find the odd man out:

a.

tail

b.

cut

c.

wart

d.

sed

Discuss
Answer: (c).wart
Q52.
Which of the following changes permission to deny write permission to group and others?

a.

Chmod go-w filex

b.

Chmod go w filex

c.

Chmod go=w filex

d.

None of the above

Discuss
Answer: (a).Chmod go-w filex
Q53.
Which of the following OS treats hardware as a file system?

a.

UNIX

b.

DOS

c.

Windows NT

d.

None of the above

Discuss
Answer: (a).UNIX
Q54.
An example of a memory management system call in UNIX is:

a.

fork

b.

mmap

c.

sigaction

d.

execve

Discuss
Answer: (b).mmap
Q55.
An example of a directory found in most UNIX system is:

a.

usr

b.

waitpid

c.

brk

d.

unmap

Discuss
Answer: (a).usr
Q56.
The “nice” command is used in Unix:

a.

to decrease the priority of a process

b.

to increase the priority of a process

c.

to get the highest priority

d.

both a and b

Discuss
Answer: (d).both a and b
Q57.
Which of the following is not an Unix Command ?

a.

Whoami

b.

wc

c.

ls

d.

put

Discuss
Answer: (d).put
Q58.
A system call in Linux operating system to create a new child process, which is a copy of the parent process:

a.

access

b.

fork

c.

flock

d.

exec

Discuss
Answer: (b).fork
Q59.
The environment variable in Linux, that contain a list of directories the shell automatically recognizes.

a.

$PATH

b.

$ENV

c.

$USER

d.

$GREP

Discuss
Answer: (a).$PATH
Q60.
In Linux, the subdirectory that contains system configuration files including user passwords:

a.

/boot

b.

/usr

c.

/etc

d.

/proc

Discuss
Answer: (c)./etc
Page 6 of 7

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