NSE 7 – Network Security Technologies 7.2 — Question 23

Which three conditions are required for two FortiGate devices to form an OSPF adjacency? (Choose three.)

Answer options

• A. OSPF link costs match.
• B. OSPF interface priority settings are unique.
• C. OSPF interface network types match.
• D. Authentication settings match.
• E. OSPF router IDs are unique.

Correct answer: C, D, E

Explanation

For two FortiGate devices to establish an OSPF adjacency, the OSPF interface network types must match (C), authentication settings must be the same (D), and the router IDs must be unique (E). Matching link costs (A) and unique interface priorities (B) are not required for forming an adjacency.