UNIX MCQ Questions for Exam and Interview Preparation

91

What is a daemon?

A) process whose parent has died B) process who has completed its execution but still has an entry in the process table C) process which is running infinitely D) process which runs automatically without any user interaction

Discuss

Answer & Solution

Answer: Option D

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

92

Which symbol is used with cat command for creating files?

A) > B) < C) * D) /

Discuss

Answer & Solution

Answer: Option A

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

93

Ctrl-S stops scrolling of screen output and . . . . . . . .

A) locks terminal B) delete a character C) locks keyboard D) delete a line

Discuss

Answer & Solution

Answer: Option C

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

94

nice command is a . . . . . . . . command in C shell.

A) internal B) external C) built-in D) directory

Discuss

Answer & Solution

Answer: Option C

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

95

The cron tab is a table having a list of commands that are scheduled to be run at regular intervals.

A) True B) False

Discuss

Answer & Solution

Answer: Option A

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

96

Which symbol is used for taking input from standard input?

A) & B) % C) – D) $

Discuss

Answer & Solution

Answer: Option C

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

97

Sometimes we are unable to create a directory because . . . . . . . .

A) the directory may already exist in the current directory B) there may be an ordinary file by the same name in the current directory C) the permissions set for the current directory does not allow the creation D) the directory may exist, there may be an ordinary file, the permissions set for the current directory does not allow the creation

Discuss

Answer & Solution

Answer: Option D

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

98

chmod command can be used in . . . . . . . . ways.

A) 3 B) 2 C) 5 D) 0

Discuss

Answer & Solution

Answer: Option B

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

99

Which file is used for indicating terminals?

A) /dev/tty B) /dev/null C) terminal file D) device file

Discuss

Answer & Solution

Answer: Option A

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

100

Which of the following system call is used for inter-process communication?

A) fork B) pipe C) fcntl D) exec

Discuss

Answer & Solution

Answer: Option B

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

UNIX MCQ Questions for Exam and Interview Preparation | Computer Science