010-160 010-160 - LPI Linux Essentials Process Management and System Monitoring Questions and Answers 2

Question 1

Which command shows how long the Linux system has been running since its last boot?

Accepted Answer

uptime

Answer

boot

Answer

runtime

Answer

systime

Question 2

What does the load average represent in the output of the `uptime` command?

Accepted Answer

Average number of processes waiting for CPU over 1, 5, and 15 minutes

Answer

Average CPU temperature over time

Answer

Average disk I/O wait time

Answer

Average network throughput

Question 3

Which command can be used to change the priority of an already-running process?

Accepted Answer

renice

Answer

nice

Answer

priority

Answer

chprio

Question 4

What keyboard shortcut suspends a foreground process in the terminal?

Accepted Answer

Ctrl+Z

Answer

Ctrl+C

Answer

Ctrl+D

Answer

Ctrl+S

Question 5

Which command lists all background and suspended jobs in the current shell session?

Accepted Answer

jobs

Answer

ps

Answer

bg

Answer

tasks

Question 6

What does the `free` command display on a Linux system?

Accepted Answer

Physical and swap memory usage

Answer

Free disk space

Answer

Free inodes on filesystems

Answer

Available CPU cores