How do you display the routing table on a Cisco router?

To display the routing table on a Cisco router, the command "show ip route" is used. This command provides a comprehensive overview of the router's routing table, showing the different routes configured, their associated metrics, and the protocols through which these routes were learned (such as RIP, EIGRP, OSPF, etc.).

When you use "show ip route," the router processes your request and retrieves the current routing table, which is a critical part of network operations. The routing table lists all known networks, how these networks are reachable, and which interfaces can be used to forward packets to those networks.

The syntax of "show ip route" is essential in Cisco’s IOS (Internetwork Operating System), and it follows a specific structure that must be adhered to in order to retrieve the desired information. Other options listed do not follow the correct command syntax for the Cisco IOS, which is why they would not yield the proper result of displaying the routing table. In networking, precise command syntax is crucial for successful configuration and troubleshooting.