Cisco Certified Network Associate (CCNA) Practice Exam

Which command shows EIGRP for IPv4 network neighbors?

1. #show running-config

2. #show ip eigrp neighbors

3. #show ip protocols

4. #show ip route

The correct answer is: #show ip eigrp neighbors

The command that displays EIGRP (Enhanced Interior Gateway Routing Protocol) neighbors for IPv4 is indeed the command that directly pertains to EIGRP operations. When executed, it provides a list of neighboring routers that are participating in the EIGRP protocol, along with information such as the interface they are connected through, their hold time, and the IP addresses of those neighbors. This information is crucial for troubleshooting EIGRP connectivity issues and ensuring that network devices are properly configured to form adjacencies. The other commands serve different purposes: - The running-config command shows the entire device configuration currently in use, which includes all configured settings but does not specifically focus on EIGRP neighbors. - The command related to protocols could provide an overview of routing protocols configured on the device, including EIGRP, but it doesn’t give the detailed neighbor information. - The route command presents the routing table, showing active routes used by the device but does not include specific neighbor information. Thus, the command that specifically shows EIGRP neighbors is the most relevant and focused for what you need to monitor in an EIGRP environment.