Q. What is the value returned by fork system call, when the creation of child process is unsuccessful?

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Q. Which system call is used to run a new program?

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Q. It is necessary to terminate the command line with &, even when we are using nohup command.

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Q. Which of the following shell(s) allows the user to run jobs in the background even when the user has logged out (without using nohup command)?

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Q. When nohup command is used, shells returns the _____

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Q. nohup command doesn’t send the standard output of a command to any file.

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Q. What is the PID of the process who takes the parentage of the process run with nohup command?

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Q. Which command is used to for executing jobs according to their priority?

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Q. It is better to use & with nice command.

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Q. Which one of the following command is used for killing the last background job?

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Q. By default, kill uses the SIGTERM signal (15) to terminate the process.

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Q. Which signal is used with kill command to terminate the process when they ignore the SIGTERM signal (15)?

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Q. Which option is preferred while killing a process using SIGKILL signal (9)?

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Q. Which of the followings command(s) is used to kill the login shell?

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Q. Kill -l will list all the signal numbers on our machine.

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Q. The command fg %1 will bring the first background job to the foreground.

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Q. The command bg %2 is valid.

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Q. What does the following command do?

$ kill %2

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Q. Which of the following is not a part of job control facilities?

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Q. POSIX shell provides job control facilities like bg or fg.

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