Fortinet Exam NSE7_EFW-7.2 Topic 1 Question 14 Discussion

Actual exam question for Fortinet's NSE7_EFW-7.2 exam

Question #: 14
Topic #: 1

[All NSE7_EFW-7.2 Questions]

Which two statements about the BFD parameter in BGP are true? (Choose two.)

AIt allows failure detection in less than one second.

BThe two routers must be connected to the same subnet.

CIt is supported for neighbors over multiple hops.

DIt detects only two-way failures.

Show Suggested Answer

Suggested Answer: A, C

Bidirectional Forwarding Detection (BFD) is a rapid protocol for detecting failures in the forwarding path between two adjacent routers, including interfaces, data links, and forwarding planes. BFD is designed to detect forwarding path failures in a very short amount of time, often less than one second, which is significantly faster than traditional failure detection mechanisms like hold-down timers in routing protocols.

Fortinet supports BFD for BGP, and it can be used over multiple hops, which allows the detection of failures even if the BGP peers are not directly connected. This functionality enhances the ability to maintain stable BGP sessions over a wider network topology and is documented in Fortinet's guides.

by Cristal at May 18, 2024, 08:05 PM

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Louisa

5 months ago

A and C are the obvious choices. I mean, who would want to be connected to the same subnet these days? That's so 90's. BFD is all about speed and flexibility!

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