John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network. John is working as a root user on the Linux operating system. Which of the following commands wi

The du (disk usage) command reports the disk space consumed by specific files and directories, not a summary of mounted file systems.

The ls command lists the contents of a directory and provides no information about mounted file systems or disk usage.

The df command (disk free) reports information about all mounted file systems, including total size, used space, available space, and mount points, directly satisfying the requirement to display mounted file system information.

df -m is the df command with the -m flag, which displays the same mounted file system information as df but formats all size values in megabytes, also fully satisfying the requirement.