TestOut Linux Pro Practice Test 2025 – Complete Exam Prep Guide

The 'ps' command is designed to display information about currently running processes on a Linux system. When executed, it provides a snapshot of the processes that are active at that moment, including details such as the process ID (PID), the user who owns the process, CPU and memory usage, and the command that started the process. This information is crucial for system monitoring and management, allowing users to track resource usage, terminate processes, and troubleshoot performance issues.

The other choices do not represent the functionality of the 'ps' command. For instance, displaying the contents of the current directory is accomplished with the 'ls' command, while disk usage statistics can be viewed using commands like 'df' or 'du'. Network configuration details are typically gathered using commands like 'ifconfig' or 'ip addr', not 'ps'. Thus, the correct interpretation of the 'ps' command is directly linked to its purpose of listing active processes.