Linux Operating System MCQ Question with Answer

Linux Operating System MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

Question No : 15
Which run-level is used with the init command to reboot the system?

Question No : 16
Which of the following command is used to move one word forward in the vi editor?

Question No : 17
In which unit, time passed in sleep command by default?

Seconds

Minutes

Milliseconds

Microseconds

Question No : 18
Which Linux command is used to check disk usage of files and directories?

diskinf

diskuse

fileinf

Question No : 19
Which exact command is used to assign all read, write and execute permission to all owners of a file?

chmod 7

chmod 777

chown 777

chgrp 777

Question No : 20
Which of the following is not the correct option used with route command?

add

delete

-net

-host

Question No : 21
Which of the following command is used to quit with discarding changes from the vi editor?

:q!

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