Cisco Certified Network Associate (CCNA) Practice Exam

To see details of OSPF interface configurations, which command should be used?

1. #show ipv6 ospf interface

2. #show ospf interface

3. #debug ipv6 ospf

4. #show ipv6 ospf neighbor

The correct answer is: #show ipv6 ospf interface

The command that provides details of OSPF interface configurations is indeed #show ipv6 ospf interface. This command is specifically designed to display information about the OSPF protocol as it operates over IPv6 interfaces, including metrics, state, and the configured OSPF parameters for each interface. In a network environment, understanding the OSPF configuration on interfaces is crucial for troubleshooting and ensuring proper routing behavior. This command gives a focused view on how OSPF is set up on IPv6-capable interfaces, making it valuable for network engineers who need to verify or diagnose OSPF-related issues within their IPv6 networks. The other options, while related to OSPF and interface configurations in some way, do not specifically target the interface configuration details in the same manner. The debug commands are generally used for real-time troubleshooting and can produce a lot of output, which may not provide a summary of configuration details as needed. Moreover, showing neighbors focuses more on the relationships between routers rather than the configuration of the interfaces themselves. Thus, #show ipv6 ospf interface is the appropriate command for the desired information.