Which command in a Cisco router would you use to display the routing table?

The command used to display the routing table in a Cisco router is "show ip route." This command provides essential routing information, including the various routes the router knows about, their respective metrics, and the administrative distances associated with those routes. This information is crucial for network troubleshooting and understanding how data packets are directed through the network.

When you execute this command, the output shows both static routes, which are manually configured, and dynamic routes learned through routing protocols such as RIP, OSPF, or EIGRP. It also indicates the network destination, the next hop address, and the outgoing interface that will be used to reach that destination.

Other options do not serve the same purpose. The command "show ip interface brief" provides a summary of the router's interfaces and their statuses, while "show running-config" displays the current configuration of the router. "show version" presents details about the router's hardware and software, but none of these commands can show the routing table like "show ip route" can. Therefore, this command is essential for network professionals to verify and assess routing configurations.