Cisco Certified Network Associate (CCNA) Practice Exam

Which command will allow you to monitor real-time OSPF adjacency status?

1. #show ip ospf adjacency

2. #debug ip ospf interface

3. #monitor interface

4. #show ip ospf status

The correct answer is: #show ip ospf adjacency

The command that allows you to monitor real-time OSPF adjacency status is "show ip ospf adjacency." This command provides a detailed view of the OSPF neighbors that are currently established, along with their state and the details of the connection, such as the router ID and the elapsed time since the last hello packet was received. This is essential for network administrators when troubleshooting OSPF issues, as it offers insight into the adjacencies and their operational statuses. The other options, while related to OSPF, do not provide a real-time view of the adjacency status. Monitoring interfaces or using debug commands can provide useful information, but they serve different purposes. Debugging commands generate detailed output about OSPF processes which can be overwhelming and not focused solely on adjacency. Thus, "show ip ospf adjacency" is the most direct and useful command for specifically monitoring OSPF neighbor relationships.