Which statement best describes the OSPF validation step?

• A. restart the OSPF process
• B. disable OSPF
• C. use static routes instead of OSPF
• D. check expected OSPF neighbors are present

Answer: (D)

Validation in OSPF is about confirming the routers you expect to exchange routing information with are actually neighboring each other. It focuses on the neighbor table showing the devices you intend to form adjacencies with and, on multi-access networks, that the appropriate adjacencies have been established to the correct routers. When the expected neighbors are present, you can trust that OSPF will exchange LSAs with those specific routers and build a consistent view of the topology, which leads to correct route propagation.

If the expected neighbors aren’t present, you have a clear signal to investigate configuration or connectivity issues—mismatched hello/dead intervals, area ID or network type mismatches, authentication problems, or incorrect network statements. These are issues that prevent proper adjacency and must be resolved to ensure valid routing.

The other options would either stop or bypass OSPF operation or replace it with static routes, which isn’t about verifying which neighbors exist; they’re different actions altogether and don’t describe the process of validating adjacency.