Fortinet Exam NSE7_EFW-7.2 Topic 4 Question 17 Discussion

Actual exam question for Fortinet's NSE7_EFW-7.2 exam

Question #: 17
Topic #: 4

[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 Latosha at Jul 01, 2024, 08:44 AM

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An

4 months ago

Looks like the BGP gods are testing our networking knowledge today. Time to channel our inner Cisco wizards!

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Casey

4 months ago

C) It is supported for neighbors over multiple hops.

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Ligia

4 months ago

A) It allows failure detection in less than one second.

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Joni

5 months ago

I'm going with A and C as well. B sounds like it would be too limiting for a feature like BFD.

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Desmond

5 months ago

I believe the correct answers are A and D, as BFD detects only two-way failures.

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Bea

5 months ago

D is definitely wrong. BFD is designed to detect both one-way and two-way failures, not just two-way.

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Alyce

3 months ago

I agree, D is definitely wrong. BFD can detect both one-way and two-way failures.

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Allene

3 months ago

C) It is supported for neighbors over multiple hops.

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Reena

3 months ago

A) It allows failure detection in less than one second.

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Melynda

3 months ago

I agree, D is definitely wrong. BFD can detect both one-way and two-way failures.

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Annelle

3 months ago

C) It is supported for neighbors over multiple hops.

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Lilli

4 months ago

A) It allows failure detection in less than one second.

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Ivette

5 months ago

I'm not sure about C, but I think A is definitely true.

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Thersa

5 months ago

I agree with Melissa, A and C make sense.

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Melissa

5 months ago

I think the correct answers are A and C.

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Abel

5 months ago

Haha, I bet the developers of BFD were like, 'How fast can we make this thing fail? One second? Challenge accepted!'

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Precious

4 months ago

D) It detects only two-way failures.

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Karl

4 months ago

Yeah, they definitely wanted to make it super fast!

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Dewitt

4 months ago

C) It is supported for neighbors over multiple hops.

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Natalie

5 months ago

A) It allows failure detection in less than one second.

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Lauran

5 months ago

A and C seem to be the correct options here. BFD is all about rapid failure detection, and it can work across multiple hops, not just on the same subnet.

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Lilli

5 months ago

Yes, you're correct. BFD is designed for rapid failure detection and can indeed work over multiple hops.

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Mable

5 months ago

I think A and C are the right choices. BFD is all about quick detection and can work across multiple hops.

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