Linux Foundation Certified System Administrator (LFCS) — Question 9

Regarding the command:
nice -5 /usr/bin/prog
Which of the following statements is correct?

Answer options

• A. /usr/bin/prog is executed with a nice level of -5.
• B. /usr/bin/prog is executed with a nice level of 5.
• C. /usr/bin/prog is executed with a priority of -5.
• D. /usr/bin/prog is executed with a priority of 5.

Correct answer: B

Explanation

The command 'nice -5 /usr/bin/prog' sets the scheduling priority of the program when it is executed. A negative nice value indicates a higher priority, thus here, /usr/bin/prog is actually executed with a nice level of 5, making option B correct. Options A, C, and D misinterpret the nice level and the priority settings.