Cisco Certified Network Associate (CCNA) Practice Exam

What command allows you to see EIGRP neighbor information?

1. show ipv6 eigrp neighbors

2. show eigrp neighbors

3. show eigrp information

4. show eigrp links

The correct answer is: show ipv6 eigrp neighbors

The command that reveals EIGRP neighbor information is specifically designed to show details related to EIGRP peers and their state. In this case, the correct command is "show ip eigrp neighbors." This command provides critical information about the neighboring routers that are participating in the EIGRP routing protocol, including their IP addresses, interface numbers, and hold times. The first choice accurately reflects the need for showing EIGRP neighbors, but it is tailored for IPv6 EIGRP neighbors. For standard EIGRP operations within an IPv4 environment, the command needed would not target IPv6 neighbors. The other suggested options do not provide the full or correct syntax required to display neighbor information in EIGRP. The "show eigrp neighbors" command is close but lacks the necessary specification of the address family (IPv4 or IPv6), which is critical to understanding the context of the command. The "show eigrp information" option is vague and does not accurately represent the command that focuses on neighbor relationships, and "show eigrp links" does not exist as a standard command to retrieve such data. Understanding how to view EIGRP neighbors is essential when troubleshooting routing issues or verifying network topology, making this command a fundamental