FCSS_EFW_AD-7.6 · Question #37
Refer to the exhibit, which shows an OSPF network. Which configuration must the administrator apply to optimize the OSPF database?
The correct answer is B. Set the area 0.0.0.1 to the type STUB in the area border FortiGate. The OSPF database optimization is necessary to reduce unnecessary routing information and improve network performance. In the given topology, Area 0.0.0.1 is a non-backbone area connected to Area 0.0.0.0 (the backbone area) through an Area Border Router (ABR). To optimize OSPF…
Question
Refer to the exhibit, which shows an OSPF network. Which configuration must the administrator apply to optimize the OSPF database?
Exhibit
Options
- ASet a route map in the AS boundary FortiGate.
- BSet the area 0.0.0.1 to the type STUB in the area border FortiGate.
- CSet an access list in the AS boundary FortiGate.
- DSet the area 0.0.0.1 to the type NSSA in the area border FortiGate.
How the community answered
(47 responses)- A9% (4)
- B72% (34)
- C17% (8)
- D2% (1)
Explanation
The OSPF database optimization is necessary to reduce unnecessary routing information and improve network performance. In the given topology, Area 0.0.0.1 is a non-backbone area connected to Area 0.0.0.0 (the backbone area) through an Area Border Router (ABR). To optimize OSPF in this scenario, configuring Area 0.0.0.1 as a Stub Area will: Reduce the size of the OSPF database by preventing external routes (from outside OSPF) from being injected into Area 0.0.0.1. Allow only intra-area and inter-area routes, meaning routers in Area 0.0.0.1 will rely on a default route for external destinations. Improve convergence time and reduce router processing load since fewer LSAs (Link-State Advertisements) are exchanged.
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