Linux MCQ Questions & Answers

51

The channel between the processor and devices is called?

A) bus B) driver C) class D) none of the mentioned

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Answer & Solution

Answer: Option A

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52

The directory file contains:

A) File names & File Sizes B) File names & Inode Numbers C) File names & Address D) File names & Permissions

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Answer & Solution

Answer: Option B

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53

Which command is used to replace word 'cat' (already present in the file) with 'mouse' at all places in a file 'old.txt' and save the result in a new file 'new.txt'?

A) sed 's/cat/mouce/g' old.txt > new.txt B) sed 's/cat/mouse' old.txt new.txt C) sed '/s/cat/mouse/g' old.txt new.txt D) sed '/s/cat/mouse' old.txt > new.txt

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Answer & Solution

Answer: Option A

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54

Which command can be executed by a user who is already logged into the system, in order to change to the root user? (type the command without any parameters)

A) su B) root C) chroot D) user

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Answer & Solution

Answer: Option A

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55

After running this program, if you enter 1000, then what will be the output of the program?

#!/bin/bash
echo "Please enter a number"
read a
if [ $a -lt 100 ]; then
echo "It is less than 100"; 
elif [ $a -lt 1000 ]; then
echo "It is less than 1000"
else 
echo "It is greater than 1000"
fi
exit 0

A) It is greater than 1000 B) It is less then 1000 C) It is equal to 1000 D) None of then mentioned

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Answer & Solution

Answer: Option A

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56

A user can change the default log-in shell using

A) chmod B) chsh C) rmsh D) tchsh

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Answer & Solution

Answer: Option B

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57

What is /proc/self ?

A) a directory B) link to the currently running process C) it allows a process to look itself without having to know its process ID D) all of the mentioned

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Answer & Solution

Answer: Option D

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58

Which one of the following statement is not true?

A) vim editor is the improved version of vi editor B) vi editor commands are not case sensitive C) vi editor has two modes of operation: command mode and insert mode D) vi stands for visual editor

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Answer & Solution

Answer: Option B

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59

In awk program, the statement "print" with no items

A) is equivalent to "print $0" B) prints the entire current record C) is equivalent to "print $0" & prints the entire current record D) none of the mentioned

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Answer & Solution

Answer: Option C

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60

The option -fsyntax-only of gcc

A) checks the code for syntax error B) checks the code for fatal error C) checks the code for syntax & fatal error D) none of the mentioned

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Answer & Solution

Answer: Option A

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Linux MCQ Questions & Answers | Computer Science