When reason could cause an OSPF neighborship to be in the EXSTART/EXCHANGE state?
A. Mismatched OSPF network type
B. Mismatched areas
C. Mismatched MTU size
D. Mismatched OSPF link costs
Answer:C
When reason could cause an OSPF neighborship to be in the EXSTART/EXCHANGE state?
A. Mismatched OSPF network type B. Mismatched areas C. Mismatched MTU size D. Mismatched OSPF link costs
Explanation: When OSPF adjacency is formed, a router goes through several state changes before it becomes fully adjacent with its neighbor. The states are Down -> Attempt (optional) -> Init -> 2-Way -> Exstart -> Exchange -> Loading -> Full. Short descriptions about these states are listed below: