XK0-005 Question #113: Real Exam Question with Answer & Explanation

The correct answer is A: renice. The renice command is used to change the scheduling priority of an already running process, thereby minimizing its impact on system resources without terminating it.

System Management

Question

An administrator notices that a long-running script, /home/user/script.sh, is taking up a large number of system resources. The administrator does not know the script's function. Which of the following commands should the administrator use to minimize the script's impact on system resources?

Options

Arenice
Bkill
Cbg
Dnohup

Explanation

The renice command is used to change the scheduling priority of an already running process, thereby minimizing its impact on system resources without terminating it.

Common mistakes.

B. The kill command terminates a process, which would stop the script entirely rather than just minimizing its resource usage.
C. The bg command resumes a suspended process in the background or puts a foreground process into the background, but it does not directly manage its resource consumption.
D. The nohup command allows a command to continue running in the background even after the user logs out, but it does not modify the process's resource priority.

Concept tested. Managing process priority with nice/renice

Reference. https://linux.die.net/man/1/renice

Topics

#Process Management#Resource Management#renice command#System Performance

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