What does the show ip interface brief command help an administrator identify?

The command "show ip interface brief" is a useful diagnostic tool for network administrators. It provides a concise summary of the status of each interface on the router or switch. Specifically, it displays the physical status of interfaces, indicating whether they are up or down, as well as showing the assigned IP addresses for each interface.

This functionality is critical for troubleshooting network connectivity issues and for ensuring that all network interfaces are functioning correctly. By quickly reviewing the output of this command, an administrator can assess which interfaces are operational and whether they have the appropriate IP configurations.

While the other options may pertain to broader configuration and management tasks, they do not directly relate to the specific purpose of the "show ip interface brief" command, which focuses primarily on the operational state and settings of the interfaces themselves.