CCNA Practice Exam 2026 – Complete Study Resource

Setting the router ID for OSPFv3 involves specifying the router ID in the OSPF configuration context. The correct method to set the router ID in OSPFv3 is to enter the OSPF configuration mode and use the specific command that clearly defines the router ID format as it is part of the router settings.

In this case, using the command that includes "router-id" within the OSPF configuration context directly indicates which router ID should be assigned to the OSPF routing process. This ensures clear identification of the router within the OSPF domain which is crucial for routing decision processes.

The other methods provided do not directly address how to configure the router ID specifically for OSPFv3. They either pertain to general OSPF configuration or incorrectly reflect the required command format for the router ID setting. Thus, focusing on the clarity and specific context of the command reflects the correct understanding of OSPFv3 configurations.