A system administrator notices that a process with PID 2345 is consuming excessive CPU and slowing down other services. The administrator wants to lower its scheduling priority without stopping it. Which command accomplishes this?

kill -STOP 2345 && renice -n 15 -p 2345

An administrator is analyzing CPU usage and sees that a process has a 'NI' value of -5 in `top`. The administrator wants to confirm this value and also see the parent process ID. Which single command provides both pieces of information?

renice -n -5 -p $(pgrep -f target)

cat /proc/$(pgrep -f target)/stat

Which statement correctly describes the relationship between a process's nice value and its scheduling priority in Linux?

A lower nice value increases the process's scheduling priority.

A higher nice value increases the process's scheduling priority.

The nice value has no effect on scheduling priority; it only affects memory allocation.

The nice value is used only for processes running in the background.

An administrator is investigating why a process is consuming more CPU than expected. The process is owned by a non-root user. The administrator checks `ps -o nice -p ` and sees a nice value of -10. What is the most likely explanation?

The process was started by root or a user with CAP_SYS_NICE, or it was renice'd by root.

The non-root user used `nice -n -10` to start the process.

The `ps` command is displaying the priority, not the nice value.

The kernel automatically assigns negative nice values to CPU-intensive processes.

LPI LPIC-1:Linux Administrator (101-500)

Domain 3Objective 6

103.6 Modify Process Execution Priorities LPIC-1 Practice Questions (Page 2)

Part of the Topic 103: GNU and Unix Commands domain, which makes up ~19% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–11 in this domain), expect 1–1 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

5concepts

Questions 6–10

6application · medium
A system administrator notices that a process with PID 2345 is consuming excessive CPU and slowing down other services. The administrator wants to lower its scheduling priority without stopping it. Which command accomplishes this?
Select an answer first
7expert · hard
An administrator is analyzing CPU usage and sees that a process has a 'NI' value of -5 in `top`. The administrator wants to confirm this value and also see the parent process ID. Which single command provides both pieces of information?
Select an answer first
8foundation · easy
Which command correctly starts the program `backup.sh` with a nice value of 5?
Select an answer first
9foundation · easy
Which statement correctly describes the relationship between a process's nice value and its scheduling priority in Linux?
Select an answer first
10expert · hard
An administrator is investigating why a process is consuming more CPU than expected. The process is owned by a non-root user. The administrator checks `ps -o nice -p <PID>` and sees a nice value of -10. What is the most likely explanation?
Select an answer first

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103.6 Modify Process Execution Priorities LPIC-1 Practice Questions (Page 2)

Questions 6–10

A system administrator notices that a process with PID 2345 is consuming excessive CPU and slowing down other services. The administrator wants to lower its scheduling priority without stopping it. Which command accomplishes this?

An administrator is analyzing CPU usage and sees that a process has a 'NI' value of -5 in `top`. The administrator wants to confirm this value and also see the parent process ID. Which single command provides both pieces of information?

Which command correctly starts the program `backup.sh` with a nice value of 5?

Which statement correctly describes the relationship between a process's nice value and its scheduling priority in Linux?

An administrator is investigating why a process is consuming more CPU than expected. The process is owned by a non-root user. The administrator checks `ps -o nice -p <PID>` and sees a nice value of -10. What is the most likely explanation?

Keep studying — Topic 103: GNU and Unix Commands