Linux Questions & Answers – Process Management

This set of Linux / Unix questions and answers focuses on Linux administration on Process Management and related commands. It will be useful for anyone learning Linux Basics, Essentials and/or Administration.

1. If a program executing in background attempts to read from STDIN
a) It is terminated
b) It’s execution is suspended
c) STDIN is made available to it
d) None of the mentioned
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2. Which command is used to bring the background process to forground?
a) bg
b) fg
c) background
d) forground
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3. How to run a process in the background?
a) &
b) *
c) ?
d) |
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4. Which command can be executed by a user who is already logged into the system, in order to change to the root user? (type the command without any parameters)
a) su
b) root
c) chroot
d) user
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5. Process information in the current shell can be obtained by using
a) kill
b) bg
c) fg
d) ps
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6. Which signal is sent by the command “kill -9 ” ?
a) INT
b) TERM
c) KILL
d) STOP
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7. Which of the following values for STAT column of ps command is not true:
a) status R means running
b) Status S means sleeping
c) Status E means exited
d) Status Z means zombie
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8. When a child process exits before the parent process exits, which of the following is true:
a) the child process becomes defunct
b) the parent process becomes defunct
c) if the parent process does not handle SIGCHLD, the child process becomes a zombie
d) none of the mentioned
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9. A user issues the following command sequence:

    $ a.out &
    $ bash
    $ a.out &

If the user kills the bash process, then which of the following is true?
a) the second a.out process is also terminated
b) the second a.out process becomes a defunct process
c) the first a.out process becomes a zombie process
d) init process becomes parent of second a.out process
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10. The signal sent to a process when the Ctrl-C key is pressed is
a) KILL
b) TSTP
c) TERM
d) INT
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11. we can change the priority of a running process using
a) nice
b) renice
c) priority cannot be changed for a running process
d) only superuser can change the priority
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12. nohup is used to
a) automatically hang up the process after logout
b) continue the process after logout
c) create backgroung process
d) manually hang up the process after logout
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To practice all questions on Linux Administration & Programming, here is complete set of 1000+ Multiple Choice Questions and Answers on Linux.

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