Linux Solved MCQs

32

16.1k

0

1.	Maximum how long can a Linux filename be?
A.	128 bytes
B.	255 bytes
C.	32 bytes
D.	64 bytes
Answer» B. 255 bytes

discuss

2.	Which combination of keys is used to exit from terminal?
A.	Ctrl + t
B.	Ctrl + z
C.	Ctrl + d
D.	Ctrl + e
Answer» C. Ctrl + d

discuss

3.	Which command(s) is/are used to get help about a command in Linux?
A.	info
B.	man
C.	None of these
D.	Both a and b
Answer» A. info

discuss

4.	Which command is used to get the kernel version in Linux?
A.	uname -r
B.	kernel
C.	uname -n
D.	uname –s
Answer» A. uname -r

discuss

5.	Which command is used to list all the files in your current directory(including hidden)?
A.	ls -l
B.	ls -t
C.	ls -a
D.	ls –i
Answer» C. ls -a

discuss

6.	Which command is/are used to remove directory in Linux?
A.	rmdir
B.	rm -r
C.	only b
D.	Both a and b
Answer» D. Both a and b

discuss

7.	Which of the following command is used to create file in Linux?
A.	touch
B.	cat
C.	echo
D.	All of the above
Answer» D. All of the above

discuss

8.	In Linux everything stored as a
A.	file
B.	directory
C.	executables
D.	None of the above
Answer» A. file

discuss

9.	Which of the following command can be used as an alternative to echo command?
A.	print
B.	printr
C.	printf
D.	none of these
Answer» C. printf

discuss

10.	Which command is used see the list of users who are currently logged-in?
A.	login
B.	users
C.	who
D.	which
Answer» C. who

discuss

11.	Which directory in Linux contains all the config file of the system?
A.	/etc
B.	/var
C.	/lib
D.	/bin
Answer» A. /etc

discuss

12.	Which of the following command is used to count number of lines in a file?
A.	wc -l
B.	wc -c
C.	wc -w
D.	None of these
Answer» A. wc -l

discuss

13.	Which command is used to copy entire directory?
A.	cp -r
B.	cp -i
C.	cp
D.	none of these
Answer» A. cp -r

discuss

14.	Which special character should be avoided during naming a file?
A.	.(dot)
B.	$
C.	_(underscore)
D.	-(Hyphen)
Answer» D. -(Hyphen)

discuss

15.	Suppose I am in /etc directoy, after executing cd .(single dot), where am I now?
A.	/etc
B.	/(root)
C.	/home
D.	None of these
Answer» A. /etc

discuss

16.	mv command can be used to ?
A.	Move the file to different directory.
B.	Renaming a file
C.	Both a and b.
D.	Only a.
Answer» C. Both a and b.

discuss

17.	Which command is used to print the login shell of an user?
A.	echo $SHELL
B.	echo $LOGIN
C.	echo $LSHELL
D.	None of the Above
Answer» A. echo $SHELL

discuss

18.	which command is used to print the current working direcotry?
A.	pwd
B.	echo $PWD
C.	Both A and B
D.	Only A
Answer» C. Both A and B

discuss

19.	Which command is used to set terminal IO characteristic?
A.	tty
B.	ctty
C.	ptty
D.	sty
Answer» D. sty

discuss

20.	Which option of ls command used to view file inode number
A.	–l
B.	-o
C.	–a
D.	–i
Answer» D. –i

discuss

21.	Which directory contains all the files needed to boot the Linux system?
A.	/dev
B.	/boot
C.	/bin
D.	none
Answer» B. /boot

discuss

22.	What is the right command to save file and exit in Vim?
A.	:wq
B.	:a
C.	:q
D.	:q!
Answer» A. :wq

discuss

23.	Which of the following is not an editor?
A.	expr
B.	vi
C.	emacs
D.	ex
Answer» A. expr

discuss

24.	In a date +format, you add the hour in 24 hours format using:
A.	%f
B.	%H
C.	%F
D.	%h
Answer» B. %H

discuss

25.	What command is used with vi editor to delete a single character?
A.	x
B.	y
C.	a
D.	None of the above
Answer» A. x

discuss

26.	Which of the following is not a communication command?
A.	grep
B.	mail
C.	mesg
D.	write
Answer» A. grep

discuss

27.	What command is used with vi editor to replace text from cursor to right
A.	S
B.	s
C.	R
D.	r
Answer» C. R

discuss

28.	What command is used with vi editor to move back to the beginning of a word?
A.	w
B.	e
C.	a
D.	b
Answer» D. b

discuss

29.	What command is used with vi editor to search a pattern in the forward direction?
A.	??
B.	//
C.	?
D.	/
Answer» D. /

discuss

30.	What command is used with vi editor to append text at end of line?
A.	I
B.	i
C.	a
D.	A
Answer» D. A

discuss

31.	Which of the following is not a filter command?
A.	sort
B.	wc
C.	grep
D.	cat
Answer» D. cat

discuss

32.	While executing a command, the shell
A.	Executes it in the same process (as shell)
B.	Creates a child shell to execute it
C.	Loads a special program to take care of the execution
D.	None of the mentioned
Answer» B. Creates a child shell to execute it

discuss

33.	Which variable contains current shell process id
A.	$*
B.	$?
C.	$$
D.	$!
Answer» C. $$

discuss

34.	Hidden files are
A.	Those whose ‘read’ bit is set to ‘h’
B.	Permitted for (can be accessed) only superusers
C.	Files that begin with a ‘.’
D.	Files that cannot be opened by ordinary user for writing
Answer» C. Files that begin with a ‘.’

discuss

35.	Shell is ?
A.	Command Interpreter
B.	Interface between Kernel and Hardware
C.	Interface between user and applications
D.	Command Compiler
Answer» A. Command Interpreter

discuss

36.	Which command searches the string in file opened in vi editor?
A.	/ or ?
B.	f or F
C.	t or T
D.	none of the mentioned
Answer» A. / or ?

discuss

37.	Which command sets the number for all lines?
A.	:set li
B.	:set ln
C.	:set nu
D.	:set nl
Answer» C. :set nu

discuss

38.	Which of the following is true?
A.	Shell is a process and can be started by superuser only
B.	Shell is a built-in Kernel functionality
C.	Shell is a wrapper for all the commands and utilities
D.	None of the mentioned
Answer» C. Shell is a wrapper for all the commands and utilities

discuss

39.	The permission -rwxr–r– represented in octal expression will be
A.	777
B.	666
C.	744
D.	711
Answer» C. 744

discuss

40.	Effective group id can be set using following permission
A.	0777
B.	2666
C.	4744
D.	1711
Answer» B. 2666

discuss

41.	The permission -rwSr–r– represented in octal expression will be
A.	0777
B.	2666
C.	4744
D.	4644
Answer» D. 4644

discuss

42.	Which command is used to assign read-write permission to the owner?
A.	chmod a+r file
B.	chmod o+r file
C.	chmod u=rw file
D.	chmod og-r file
Answer» C. chmod u=rw file

discuss

43.	Which of the following umask settings doesn’t allow execute permission to be set by default on directory files
A.	222
B.	111
C.	000
D.	444
Answer» C. 000

discuss

44.	Write the command to display the current date in the form dd/mm/yyyy.
A.	date +%d/%m/%Y
B.	date +”%d/%m/%Y”
C.	date +/%d/%m/20%y
D.	date +”/%d/%m/20%y”
Answer» A. date +%d/%m/%Y

discuss

45.	How to execute ls command inside a vi editor?
A.	!ls
B.	:ls
C.	:!ls
D.	we can’t execute
Answer» C. :!ls

discuss

46.	What communication command provides communication to another user logged on by writing to the bottom of their terminal?
A.	talk
B.	write
C.	chat
D.	tr
Answer» A. talk

discuss

47.	Which of the following command output contains userid?
A.	ls
B.	help
C.	date
D.	ls –l
Answer» D. ls –l

discuss

48.	pwd command displays
A.	user password
B.	password file content
C.	present working directory
D.	none of the mentioned
Answer» C. present working directory

discuss

49.	What is the default number of files open per user process?
A.	0
B.	1
C.	2
D.	3
Answer» D. 3

discuss

50.	Solaris is the name of a flavor of UNIX from
A.	HP
B.	IBM
C.	Digital Equipment Corp
D.	Sun Microsystems
Answer» D. Sun Microsystems

discuss

Linux Solved MCQs

Maximum how long can a Linux filename be?

Which combination of keys is used to exit from terminal?

Which command(s) is/are used to get help about a command in Linux?

Which command is used to get the kernel version in Linux?

Which command is used to list all the files in your current directory(including hidden)?

Which command is/are used to remove directory in Linux?

Which of the following command is used to create file in Linux?

In Linux everything stored as a

Which of the following command can be used as an alternative to echo command?

Which command is used see the list of users who are currently logged-in?

Which directory in Linux contains all the config file of the system?

Which of the following command is used to count number of lines in a file?

Which command is used to copy entire directory?

Which special character should be avoided during naming a file?

Suppose I am in /etc directoy, after executing cd .(single dot), where am I now?

mv command can be used to ?

Which command is used to print the login shell of an user?

which command is used to print the current working direcotry?

Which command is used to set terminal IO characteristic?

Which option of ls command used to view file inode number

Which directory contains all the files needed to boot the Linux system?

What is the right command to save file and exit in Vim?

Which of the following is not an editor?

In a date +format, you add the hour in 24 hours format using:

What command is used with vi editor to delete a single character?

Which of the following is not a communication command?

What command is used with vi editor to replace text from cursor to right

What command is used with vi editor to move back to the beginning of a word?

What command is used with vi editor to search a pattern in the forward direction?

What command is used with vi editor to append text at end of line?

Which of the following is not a filter command?

While executing a command, the shell

Which variable contains current shell process id

Hidden files are

Shell is ?

Which command searches the string in file opened in vi editor?

Which command sets the number for all lines?

Which of the following is true?

The permission -rwxr–r– represented in octal expression will be

Effective group id can be set using following permission

The permission -rwSr–r– represented in octal expression will be

Which command is used to assign read-write permission to the owner?

Which of the following umask settings doesn’t allow execute permission to be set by default on directory files

Write the command to display the current date in the form dd/mm/yyyy.

How to execute ls command inside a vi editor?

What communication command provides communication to another user logged on by writing to the bottom of their terminal?

Which of the following command output contains userid?

pwd command displays

What is the default number of files open per user process?

Solaris is the name of a flavor of UNIX from