If two OSPF neighbors have formed complete adjacency and are exchanging link-state advertisements, which state have they reached?
Click on the arrows to vote for the correct answerA. B. C. D.
When two OSPF routers have formed a complete adjacency and are exchanging link-state advertisements, they have reached the "FULL" state.
The OSPF adjacency formation process goes through several states, including "Down", "Init", "2-Way", "Exstart", "Exchange", and "FULL".
During the "Down" state, the routers are not yet communicating. In the "Init" state, the routers have discovered each other, but they have not yet agreed on parameters. In the "2-Way" state, the routers have agreed on parameters, and each router has received a hello message from the other router.
In the "Exstart" state, the routers begin to exchange Database Descriptor (DBD) packets, which contain information about the link-state database. In the "Exchange" state, the routers exchange link-state advertisements (LSAs) based on the DBD packets they received in the Exstart state.
Finally, when the routers have exchanged all of their LSAs, they reach the "FULL" state. In the FULL state, the routers have identical link-state databases and are ready to forward traffic.
Therefore, the correct answer to the question is C. FULL.