Cisco Certified Network Associate (CCNA) Practice Exam

Which command is used to troubleshoot an EIGRP for IPv6 network by viewing its interfaces?

1. show ipv6 protocols

2. show ipv6 eigrp neighbors

3. show ipv6 eigrp interfaces

4. show ipv6 eigrp topology

The correct answer is: show ipv6 eigrp interfaces

The command used to troubleshoot an EIGRP for IPv6 network by viewing its interfaces is indeed focused on displaying detailed information about the interfaces that EIGRP is using. When you use the command to show IPv6 EIGRP interfaces, it provides visibility into which interfaces are participating in the EIGRP process. This is crucial for troubleshooting because it allows you to verify that the correct interfaces are up and running, and it can also reveal if there are any issues impacting EIGRP operation on those interfaces. Other commands related to EIGRP serve different purposes. For instance, showing EIGRP neighbors focuses on adjacent devices participating in EIGRP, which is essential for understanding connectivity but does not give direct information about the interfaces themselves. Viewing the EIGRP topology provides insights into the routes being managed by EIGRP but does not offer the interface-level details necessary for diagnosing interface-related issues. Lastly, showing IPv6 protocols gives a broader overview of routing protocols but does not specifically isolate the EIGRP interfaces. Thus, the command tailored to inspect interfaces directly is the most appropriate choice for troubleshooting in this context.