NSE 7 – Network Security Architect — Question 15

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

Answer options

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

Correct answer: A, B, D

Explanation

The correct conditions for forming an OSPF adjacency include A, B, and D. A states that both devices need to be on the same subnet, B requires matching hello and dead intervals for proper communication, and D specifies that OSPF peer IDs must be consistent. Options C and E are not necessary for OSPF adjacency formation, as MTU and costs can differ without affecting the adjacency process.