Cisco Certified Network Associate (CCNA) Practice Exam

What command is utilized to display EIGRP neighbor adjacencies?

1. show ip protocols

2. show eigrp neighbors

3. maximum-paths NUMBER

4. router eigrp AS NUMBER

The correct answer is: show eigrp neighbors

The command used to display EIGRP (Enhanced Interior Gateway Routing Protocol) neighbor adjacencies is "show eigrp neighbors." This command provides vital information regarding EIGRP neighbors, including their IP addresses, the interface used to reach them, the status of the adjacency, and the hold time. It is essential for network administrators to verify and troubleshoot EIGRP neighbor relationships, ensuring that routers are properly communicating and exchanging routing information. The other commands serve different purposes. The "show ip protocols" command displays information related to all routing protocols, including their timers, networks being advertised, and other protocol-specific parameters, but not specifically neighbor details for EIGRP. The "maximum-paths NUMBER" command is used to configure the maximum number of equal-cost paths that EIGRP can use for load balancing, rather than to display neighbor relationships. Lastly, the "router eigrp AS NUMBER" command is utilized to enter EIGRP configuration mode for a specific autonomous system number, allowing the configuration of EIGRP settings rather than displaying any information about neighbor states.