Unix - Study Mode

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[#1041] Which command will push the current foreground job to the background?

(A) bg

(B) fg

(C) ctrl-Z

(D) kill

Correct Answer

(A) bg

[#1042] . . . . . . . . key is used for switching to command mode from input mode.

(A) i

(B) A

(C) :

(D) esc

Correct Answer

(D) esc

[#1043] For interrupting a command, we can use . . . . . . . .

(A) ctrl-f

(B) esc

(C) ctrl-h

(D) ctrl-c

Correct Answer

(D) ctrl-c

[#1044] Which of the following macro returns true if the file type is a directory?

(A) S_ISREG

(B) S_ISDIR

(C) S_ISCHR

(D) S_ISFIFO

Correct Answer

(B) S_ISDIR

[#1045] We can display an alias definition by using an alias with the name.

(A) True

(B) False

Correct Answer

(A) True