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Fortinet Exam NSE7_NST-7.2 Topic 3 Question 19 Discussion

Actual exam question for Fortinet's NSE7_NST-7.2 exam
Question #: 19
Topic #: 3
[All NSE7_NST-7.2 Questions]

Refer to the exhibit, which shows the output of a BGP debug command.

Which statement explains why the state of the 10.200.3.1 peer is Connect?

Show Suggested Answer Hide Answer
Suggested Answer: B

IKE_SA_INIT Exchange:

The IKE_SA_INIT exchange is the first step in the IKEv2 negotiation process. It is responsible for setting up the initial security association (SA) and performing Diffie-Hellman key exchange.

During this exchange, the responder may employ various measures to protect against Denial of Service (DoS) attacks, such as rate limiting and the use of puzzles to increase the computational cost for an attacker.

DoS Protection Mechanisms:

One key method involves limiting the number of half-open SAs from any single IP address or subnet.

The IKE_SA_INIT exchange can also incorporate the use of stateless cookies, which help to verify the initiator's legitimacy without requiring extensive resource allocation by the responder until the initiator is verified.


RFC 5996: Internet Key Exchange Protocol Version 2 (IKEv2) (RFC Editor).

RFC 8019: Protecting Internet Key Exchange Protocol Version 2 (IKEv2) Implementations from Distributed Denial-of-Service Attacks (IETF Datatracker).

Contribute your Thoughts:

Alberta
1 days ago
The BGP session is in the Connect state because the local router initiated the session to 10.200.3.1 but didn't receive a response. Looks like a connectivity issue between the two routers.
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Reita
2 days ago
I disagree, I believe the answer is B.
upvoted 0 times
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Margery
4 days ago
I think the answer is A.
upvoted 0 times
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