Unix - Study Mode

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[#396] Which command is used for saving and quitting the editor simultaneously?

(A) :q

(B) :w

(C) ':x'

(D) :f

Correct Answer

(C) ':x'

[#397] Which of the following key options is used with tar to create an archive?

(A) -c

(B) -x

(C) -t

(D) -f archive name

Correct Answer

(A) -c

[#398] System calls and library functions are same.

(A) True

(B) False

Correct Answer

(B) False

[#399] Which of the following signals can neither be ignored nor catch?

(A) SIGKILL

(B) SIGSTOP

(C) SIGKILL and SIGSTOP

(D) SIGALR

Correct Answer

(C) SIGKILL and SIGSTOP

[#400] To assign execute permission to the user (owner) for a file named file01.txt, which of the following command will be used?

(A) chmod u+r file01.txt

(B) chmod u+w file01.txt

(C) chmod u-x file01.txt

(D) chmod u+x file01.txt

Correct Answer

(D) chmod u+x file01.txt