A server runs a critical web application and a batch reporting job. The reporting job (PID 3456) is currently running with a nice value of 5. The web application is experiencing latency. The administrator wants to give the web application more CPU time without stopping the reporting job. The administrator is root. What is the best action?

Run `renice -n 15 -p 3456` to lower the reporting job's priority further.

Run `nice -n -10 $(pgrep -f web_app)` to raise the web application's priority.

Run `renice -n -5 -p 3456` to increase the reporting job's priority so it finishes faster.

Run `kill -STOP 3456` and restart the reporting job later.

A non-root user has started a process (PID 7890) with a nice value of 0. The user now wants to increase its priority by setting a nice value of -5. The user attempts `renice -n -5 -p 7890`. What is the expected result?

The command succeeds, and the nice value is set to -5.

The command succeeds because the user owns the process.

The command fails because the user lacks the privilege to set a negative nice value.

The command succeeds, but the nice value is set to 0 instead of -5.

What is the primary purpose of the Linux kernel's scheduling algorithm when multiple processes are competing for CPU time?

To give each process an equal share of CPU time regardless of priority.

To run processes in the order they were started.

To ensure that all processes finish at the same time.

To allocate CPU time based on process priority and nice values.

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

Domain 3Objective 6

103.6 Modify Process Execution Priorities LPIC-1 Practice Questions (Page 5)

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 21–24

21expert · hard
A server runs a critical web application and a batch reporting job. The reporting job (PID 3456) is currently running with a nice value of 5. The web application is experiencing latency. The administrator wants to give the web application more CPU time without stopping the reporting job. The administrator is root. What is the best action?
Select an answer first
22expert · hard
A non-root user has started a process (PID 7890) with a nice value of 0. The user now wants to increase its priority by setting a nice value of -5. The user attempts `renice -n -5 -p 7890`. What is the expected result?
Select an answer first
23application · medium
An administrator needs to quickly identify which of several running processes has the lowest scheduling priority (i.e., is the 'nicest'). Which single command provides a snapshot of all processes with their nice values?
Select an answer first
24foundation · easy
What is the primary purpose of the Linux kernel's scheduling algorithm when multiple processes are competing for CPU time?
Select an answer first

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103.6 Modify Process Execution Priorities LPIC-1 Practice Questions (Page 5)

Questions 21–24

A non-root user has started a process (PID 7890) with a nice value of 0. The user now wants to increase its priority by setting a nice value of -5. The user attempts `renice -n -5 -p 7890`. What is the expected result?

An administrator needs to quickly identify which of several running processes has the lowest scheduling priority (i.e., is the 'nicest'). Which single command provides a snapshot of all processes with their nice values?

What is the primary purpose of the Linux kernel's scheduling algorithm when multiple processes are competing for CPU time?

Keep studying — Topic 103: GNU and Unix Commands