What information can you typically find in /proc/meminfo?

The /proc/meminfo file provides detailed information on memory usage in a Linux system. This file is part of the proc filesystem, which presents a dynamic view of the system's processes and kernel parameters. Specifically, /proc/meminfo contains crucial metrics regarding the system's virtual memory, including the total amount of RAM, available memory, buffers, cached memory, swap space, and much more.

This information is instrumental for system administrators and users who need insights into memory consumption patterns, helping optimize performance or troubleshoot issues related to memory usage. The other options refer to different system statistics: CPU usage can be checked in files like /proc/cpuinfo or through commands like top and vmstat; disk partition sizes are found in commands like df or by examining /proc/partitions; and network statistics are available in files such as /proc/net/dev or through tools like ifconfig and netstat. Each of these areas is managed distinctly, underscoring why the correct choice specifically relates to memory.