LPIC Practice Session

Session ID: 147
Mode: objective
Status: in_progress
Answered: 0 / 10
Score: 0%

Review flagged, incorrect, and unanswered questions

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Review: All | First Unanswered | First Flagged

Question 1

103.6-012 / multiple_choice

Which renice option targets a specific process by PID?

Question 2

103.6-010 / multiple_choice

Which user is allowed to decrease the niceness of a process below zero?

Any user who owns the process Only members of the wheel group Only root Only systemd

Question 3

103.6-007 / multiple_choice

Which command changes the nice value of an already running process?

nice renice top -n chrt

Question 4

103.6-016 / multiple_choice

In a preemptive multitasking system, what happens if a higher priority process becomes ready while a lower priority process is running?

Both run at the same time on the same CPU core The lower priority process continues until completion The lower priority process pauses and the higher priority process runs The higher priority process waits until the lower priority one yields voluntarily

Question 5

103.6-017 / multiple_choice

Any real-time process has what relationship to a normal process in terms of scheduling priority?

It always has lower priority It always has higher priority It has the same priority by default It depends only on the nice value

Question 6

103.6-024 / command_line

Enter the command that starts tar czf home_backup.tar.gz /home with niceness 15.

Question 7

103.6-006 / multiple_choice

Which command starts a program with a modified nice value?

renice nice schedtool ps

Question 8

103.6-011 / multiple_choice

What is the probable cause of the error 'renice: failed to set priority ... Permission denied' when trying 'renice -10 21704'?

The process no longer exists The system does not support renice A non-root user is trying to set a negative nice value The PID must be specified with -u instead of -p

Question 9

103.6-025 / command_line

Enter the command that changes process 2164 to a nice value of -10.

Question 10

103.6-018 / short_answer

What is the default nice value for a normal process?

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