31. The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is _______________?
A. tee
B. tr
C. sort
D. grep
✅ The correct answer is option A.
Basic of linux unix MCQs
32. What protocol(s) is(are) allowed a user to retrieve her/his mail from the mail server to her/his mail reader ?
A. POP3
B. FTP
C. MAP
D. All of the above
✅ The correct answer is option A.
33. Which of the following commands is not the vi Input mode command ?
A. rch
B. R
C. S
D. j
✅ The correct answer is option D.
34. How many networks and nodes per network, are allowed by the Class B network?
A. 127 networks and 16,777,216 nodes per network
B. 16,384 networks and 65,534 nodes per network
C. 2,097,152 networks and 254 nodes per network
D. All of the above
✅ The correct answer is option B.
35. Which command is used with vi editor to save file and remain in the editing mode ?
A. :q
B. :w
C. q!
D.
✅ The correct answer is option B.
36. What command is used to sort the lines of data in a file in reverse order ?
A. sort – r
B. st
C. sh
D. sort
✅ The correct answer is option A.
37. Which command will be used with vi editor to insert text to left of cursor ?
A. s
B. S
C. a
D. i
✅ The correct answer is option D.
38. The seventh field of /etc/password is________________?
A. password
B. login
C. shell
D. home
✅ The correct answer is option C.
39. Which of the following commands is used to obtain a list of all files by modification time ?
A. ls -1
B. ls -t
C. ls -i
D. ls -R
✅ The correct answer is option B.
40. Which of the following commands is used to assign executable permission to the owner of the file named “note” ?
A. chmod g+x note
B. chmod u+w note
C. chmod u+x note
D. chmod ugo+x note
✅ The correct answer is option C.