NSE 7 – Enterprise Firewall 6.4 — Question 31

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

Answer options

• A. OSPF peer IDs match
• B. IP addresses are in the same subnet
• C. Hello and dead intervals match
• D. OSPF IP MTUs match
• E. OSPF costs match

Correct answer: B, C, D

Explanation

To establish an OSPF adjacency, the devices must be in the same subnet (B), have matching Hello and dead intervals (C), and the MTU settings must also be the same (D). The OSPF peer IDs (A) and costs (E) do not affect adjacency formation.