Unix - Study Mode

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[#216] sqroot(x) function returns the square root of x.

(A) True

(B) False

Correct Answer

(B) False

[#217] . . . . . . . . searches for a first instance of a pattern in forwarding direction.

(A) /

(B) %

(C) &

(D) ?

Correct Answer

(A) /

[#218] Which command is used to change the ownership of a file?

(A) chmod

(B) change

(C) ch

(D) chown

Correct Answer

(D) chown

[#219] Which command is used for removing an empty directory?

(A) mkdir

(B) rmdir

(C) del

(D) remove

Correct Answer

(B) rmdir

[#220] Which command is used by the administrator to modify some parameters of existing users?

(A) userdel

(B) userchange

(C) useradd

(D) usermod

Correct Answer

(D) usermod