A FortiGate is configured with OSPF and multiple areas. The administrator wants to prevent type 3 LSAs from entering a specific area, while still allowing inter-area routing. Which TWO configurations can achieve this?
Stub areas block type 5 LSAs but also prevent type 3 from entering? Actually, stub areas block type 5 but allow type 3. To block type 3, use NSSA or totally stubby. Option A is not fully correct; need to reconsider.
Why this answer
Type 3 LSAs are summary LSAs. To block them, you can configure the area as a stub area (which blocks type 5 as well) or use an area filter list to filter specific prefixes.