Unix - Study Mode

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[#771] What is UNIX?

(A) an operating system

(B) a text editor

(C) programming language

(D) software program

Correct Answer

(A) an operating system

[#772] Jobs scheduled using batch command can be removed using . . . . . . . . option.

(A) -a

(B) -d

(C) -f

(D) -r

Correct Answer

(D) -r

[#773] When backspace doesn't work to erase characters, we can use . . . . . . . .

(A) ctrl-f

(B) ctrl-h

(C) ctrl-c

(D) ctrl-u

Correct Answer

(B) ctrl-h

[#774] A device file contains no data.

(A) True

(B) False

Correct Answer

(A) True

[#775] The chmod command invokes the . . . . . . . . system call.

(A) chmod

(B) ch

(C) read

(D) change

Correct Answer

(A) chmod