On a live network, which two commands will verify the operational status of router interfaces? (Choose two.)

The `show ip interface brief` command provides a concise summary of the operational status (up/down/administratively down) and IP address of all interfaces, which is essential for a quick overview of interface activity and configuration.

The `debug interface` command enables real-time debugging output for interface events, which is used for in-depth troubleshooting rather than a general status check.

The `show ip protocols` command displays information about routing protocols configured on the router, not the operational status of the interfaces themselves.

The `show interfaces` command offers detailed information about the physical and data link layer status, line protocol status, input/output packet counts, and error statistics for all interfaces, providing a comprehensive view of their operational state.

The `show start` (or `show startup-config`) command displays the configuration saved in NVRAM, which does not reflect the current operational status of the interfaces.