1000+ Linux OS Multiple Choice Question Answer [Solved]

1. Which command is used to see the content of a file
A. more
B. cp
C. cat
D. rmdir
Answer : C

2. Home directory of root is
A. /home
B. /bin
C. /root
D. /boot
Answer : C

3. When an user is deleted it home directory contents are also deleted
A. True
B. False
C.
D.
Answer : B

4. To create multiple directories in one shot ________ is used
A. mkdir
B. mkdir -a
C. mkdir -p
D. mkdir -h
Answer : C

5. The command to view the partition information is
A. fsck
B. fstab
C. fdisk
D. diskdruid
Answer : C

6. cat > abc, if the requested file does not exist, error will be given by
A. Kernel
B. Shell
C. root
D. None of the above
Answer : A

7. Linux is a ---------------Operating System
A. Single User
B. Multi User
C. Time Sharing
D. None of the above
Answer : B

8. Samba is actually a
A. Share
B. File server
C. File
D. None of the above
Answer : B

9. There can be only ----- job in foreground.
A. 1
B. 2
C. 3
D. 4
Answer : A

10. Samba password and user password are same
A. True
B. False
C.
D.
Answer : B

11. Shell is a
A. Program
B. Hardware
C. Account
D. None of the above
Answer : A

12. What will be the output of the command 'tail sample'?
A. Last 10 lines of the file.
B. Last 15 lines of the file
C. Last 5 lines of the file
D. First 10 lines of file.
Answer : A

13. User can be assigned to a group while creating the user. The command for this is
A. adduser -g
B. useradd -a
C. aduser -a
D. useradd -g
Answer : A

14. /dev is used for
A. Executable file
B. Contains include file
C. Contain compiler file.
D. Device file & resource file.
Answer : D

15. _______ is used to change the file/folder permission
A. chown
B. chmod
C. mod
D. chgrp
Answer : B

16. -wxrwx-x is equivalent to
A. 567
B. 675
C. 571
D. 672
Answer : C

17. Name of the kernel file in Linux is
A. lkrnl
B. vmlinux
C. linuxbin
D. none of the above
Answer : D

18. wc -l will give the
A. Number of lines
B. Number of characters
C. Number of words
D. All of the above
Answer : A

19. To search a pattern in a file _________ can be used
A. grep
B. egrep
C. find
D. search
Answer : A

20. To unmount a filesystem ________ command is ised
A. Umount
B. unmount
C. dismount
D. mount -u
Answer : A

21. What is the meaning of chmod 444 stuf?
A. Gives all user write permission.
B. Gives all user execute permission.
C. Gives all user read permission.
D. All of the above.
Answer : C

22. A swap partition is actually
A. Primary partition
B. Extended partition
C. Extended memory
D. Virtual memory
Answer : D

23. Which command is used to see the system date?
A. Time
B. Date
C. Month
D. None of these
Answer : B

24. To access a directory the minimum permission required is
A. r
B. w
C. x
D. All
Answer : C

25. All run levels are stored in
A. /etc/fstab
B. /etc/init
C. /etc/inittab
D. /etc/rc.d
Answer : C

26. Which command is used for character translation?
A. td
B. vi
C. tr
D. tail
Answer : C

27. The command for changing the permission relating to files is
A. ls-l
B. head
C. tail
D. chmod
Answer : D

28. During Linux booting the init program is called by
A. ROM
B. Bootstrap
C. Sysinit
D. Kernel
Answer : D

29. A user is logged in on a terminal; root tries to delete the user. Will the user be deleted?
A. Yes
B. No
C.
D.
Answer : B

30. To get information about the Ethernet card, ___________ command is used
A. ipconfig
B. ifconfig
C. eth0
D. man Ethernet
Answer : B

31. The command to check a partition is
A. fsck
B. fstab
C. fdisk
D. diskdruid
Answer : A

32. The core of Linux OS is also called
A. Kernel
B. Shell
C. root
D. bash
Answer : A

33. The encrypted password is stored in which field of /etc/password file ?
A. first
B. second
C. third
D. last
Answer : B

34. To change the ownership of a file use
A. chmod
B. chgrp
C. chown
D. change
Answer : C

35. In practical, at the most _____ terminals can be opened at a time
A. 3
B. 6
C. 10
D. 12
Answer : B

36. Protocols used by Linux are
A. TCP/IP &UUCP
B. UDP & UUCP
C. PPP & UDP
D. None of the above
Answer : A

37. Output of the command 'wc <filename>' is
A. Show only line
B. Show only word.
C. Show alphabet, line, word.
D. Show only file name.
Answer : C

38. What is the relation between grep & egrep
A. egrap is a mother of grep.
B. Egrap is totally difference
C. Egrap is a another version of grep.
D. None of these.
Answer : C

39. The type of shell mostly used for Linux is
A. bash
B. korn
C. bourne
D. C-shell
Answer : A

40. Hidden file can be viewed using
A. ls -l
B. ls -a
C. ls -h
D. None of the above
Answer : B

41. Linux kernel file name is
A. vmlinux
B. vmlinuz
C. lynx
D. linux
Answer : B

42. Password is applied using
A. psswd
B. pssword
C. uerpasswd
D. passwd username
Answer : D

43. ________ gives information about an user
A. who
B. who am i
C. who -i
D. None of the above
Answer : B

44. ls - t is used for
A. Sort by name
B. Sort by date
C. Sort by time stamp
D. Sort by alphabetic order
Answer : C

45. To give all permission to a file to all users the command is
all of the above
A. chmod a+777 file
B. chmod a+rwx file
C. chmod ugo+7 file
D. none of the above
Answer : B

46. In comm the 2nd column displays
A. Lines unique in the first file
B. Lines unique in the second file
C. Lines common in the both file
D.
Answer : B

47. Linux mount partition must be a primary partition
A. True
B. False
C.
D.
Answer : B

48. To setup a Firewall, the command is
A. ntsysv
B. setup
C. /etc/firewall
D. /etc/install
Answer : B

49. The main function of grep is
A. look for numeric
B. look for string match a regular expression..
C. look for string without regular expression.
D. None of them.
Answer : B

50. Which command is used to compare files?
A. cmp
B. diff
C. head
D. All of these
Answer : A