Q. Which of the following system calls returns one or more file descriptors?

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Q. The environment variables are available in _____

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Q. Which of the following functions are used for obtaining and setting the value of environment variables?

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Q. Which of the following action can be taken by a process upon receiving a signal?

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Q. What is the default disposition of most signals?

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Q. Which of the following resources are required to be managed and monitored?

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Q. System time comprises ____ components.

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Q. Which command is used to display all the running and active real-time processes?

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Q. ____ command displays the list of all open files and processes.

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Q. ____ is a simple tool that will collect and show system input and output storage device statistics.

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Q. sar is a command line tool for collecting, viewing and recording performance data.

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Q. To override the default action and catch the signal ____ system call is used.

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Q. Which of the following functions can be performed using signal system call?

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Q. Which of the following signals can neither be ignored nor catch?

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Q. Which of the following comments about the signals system call are true?

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Q. Which of the following characteristics of the original process are preserved when, the exec system call is executed

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Q. Choose the correct statement.

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