Linux MCQ Questions & Answers

91

The execution of the program in GDB can be affected by

A) arguments B) working directory C) environment D) all of the mentioned

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Answer & Solution

Answer: Option D

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92

By default the GDB automatically executes the command from its

A) init files B) start files C) begin files D) none of the mentioned

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Answer & Solution

Answer: Option A

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93

At the time of debugging with GDB, if we just press ENTER

A) GDB will repeat the same command you just gave it B) GDB will do nothing C) GDB will exit D) None of the mentioned

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Answer & Solution

Answer: Option A

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94

Which command puts a script to sleep untill a signal is recieved?

A) sleep B) suspend C) disown D) break

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Answer & Solution

Answer: Option B

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95

At start of process execution, STDOUT & STDERR

A) Point to current terminal device B) Are closed C) Point to special files on the system D) None of the mentioned

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Answer & Solution

Answer: Option A

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96

The /boot directory stores the data that is used

A) before the kernel begins executing user mode programs B) after the kernel begins executing user mode programs C) before the bootloader is loaded in the RAM D) none of the mentioned

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Answer & Solution

Answer: Option A

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97

Which option of gcc links with a library file?

A) -l B) -L C) -link D) none of the mentioned

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Answer & Solution

Answer: Option A

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98

The kobjects can be organized in a hierarchical tree by means of

A) ksets B) kref C) ktype D) none of the mentioned

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Answer & Solution

Answer: Option A

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99

Nice can be used by an ordinary process to

A) increase the priority of a process B) decrease the priority of a process C) increase or decrease the priority of a process D) none of the mentioned

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Answer & Solution

Answer: Option B

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100

The ls –l output for /etc/passwd and /usr/bin/passwd is as follows:

-rw-rw-r-- 1 root root 2807 Apr 26 13:50 /etc/passwd
-r-s—x—x 1 root root 17008 May 25 02:30 /usr/bin/passwd

If a user, not belonging to the group ‘root’, runs the passwd executable in an attempt to modify his password, then which of the following is true?

A) password change fails since user does not have permission to update /etc/passwd file B) password change is successful because the program runs as root C) passwd change program runs in kernel mode where write access to the /etc/passwd file is possible D) /etc/passwd is a special file and the system by default allows all users to update it

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Answer & Solution

Answer: Option B

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Linux MCQ Questions & Answers | Computer Science