Linux MCQ Questions & Answers

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Each section contains 100 MCQs on Linux .

What is the output of this program?

#!/bin/bash
var1=10
$var1=20
echo $var1
exit 0

A) program will print 10 B) program will generate a warning message C) program will print 20 D) program will print 10 & 20

Discuss

Answer & Solution

Answer: Option D

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

Command used to check shared memory is

A) ipcs B) ipcs -m C) ipcs -s D) ipcs -q

Discuss

Answer & Solution

Answer: Option B

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

If the umask value is 0002. what will be the permissions of new directory

A) 777 B) 775 C) 774 D) 664

Discuss

Answer & Solution

Answer: Option B

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

Which of the following values for STAT column of ps command is not true:

A) status R means running B) Status S means sleeping C) Status E means exited D) Status Z means zombie

Discuss

Answer & Solution

Answer: Option C

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

Which of the following statement is FALSE ?

A) Unix supports multiple users B) Linux is an open source operating system and the source code is shared C) Shell takes care of inter process communication D) Shell provides the feature of I/O Redirection

Discuss

Answer & Solution

Answer: Option C

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

The structure which keeps the information about shared memory in the kernel is

A) struct ipc_perm B) struct semid_ds C) struct shmid_ds D) struct msgid_ds

Discuss

Answer & Solution

Answer: Option C

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

The file /proc/swaps contains the

A) list of active swap partitions B) sizes of the swap partitions C) priorities of the swap partitions D) all of the mentioned

Discuss

Answer & Solution

Answer: Option D

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

Preprocessed files are given the file extension . . . . . . . . for c++ programs.

A) .i B) .ii C) .iii D) none of the mentioned

Discuss

Answer & Solution

Answer: Option B

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

Which one of the following is not true?

A) there are 3 types of constant expressions: numeric, string and regular B) arithmetic operators are used to evaluate expressions C) assignment expression is an expression that stores a value into a variable D) comparison expressions does not compare strings for relationship

Discuss

Answer & Solution

Answer: Option D

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

The redirection 2> abc implies

A) Write file 2 to file abc B) Write standard output to abc C) Write standard error to abc D) None of the mentioned

Discuss

Answer & Solution

Answer: Option C

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

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Linux MCQ Questions & Answers | Computer Science