Cisco Certified Network Associate (CCNA) Practice Exam

Which command provides a brief overview of OSPF interfaces?

1. #show ipv6 ospf interface

2. #show ipv6 ospf interface brief

3. #show ospf interface

4. #debug ipv6 ospf adj

The correct answer is: #show ipv6 ospf interface brief

The command that provides a brief overview of OSPF interfaces is indeed the one that includes "brief" in its syntax. This command is designed specifically to summarize OSPF interface information efficiently, making it easier for network administrators to quickly assess the status of OSPF configurations across various interfaces. Using a command that includes "brief" typically narrows down the output to only the essential information, helping to keep the output concise and focused. This is especially useful in larger networks where monitoring multiple interfaces can result in excessive amounts of data. The other options do not serve the same purpose. For example, one option is designed to display IPv6-specific OSPF interface information without a brief summary, while another focuses solely on OSPF without providing brevity. Additionally, the debug command listed is more about monitoring OSPF neighbor adjacency rather than summarizing interface information. Thus, the syntax and inclusion of "brief" make the chosen command the most appropriate for the task at hand.