UNIX MCQ Questions for Exam and Interview Preparation

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Each section contains 100 MCQs on Unix .

write system call returns -1 when . . . . . . . .

A) if disk fills up while write is in progress B) when file doesn't exist C) if the file size exceeds the system's limit D) if disk fills up while write is in progress and if the file size exceeds

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Apart from its use in redirection, /dev/tty can also be used as an argument to some commands.

A) True B) False

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

script command is used for. . . . . . . .

A) recording history B) recording our session C) recording passwords D) recording scripts

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

For removing a link, . . . . . . . . is used.

A) link B) symlink C) unlink D) delink

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which option is used with the tail command for extracting bytes instead of lines?

A) -f B) -n C) -c D) -a

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Directories can also be opened, read and written in the same way as regular files.

A) True B) False

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which of the following is used for creating user's environment?

A) su B) su – C) -su D) su – –

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

How many types of permissions a file has in UNIX?

A) 1 B) 2 C) 3 D) 4

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In ex-mode, current line is represented by . . . . . . . .

A) : B) $ C) > D) .

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

To remove a job from the queue, which option is used with at command?

A) -r B) -l C) -e D) -t

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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UNIX MCQ Questions for Exam and Interview Preparation | Computer Science