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Cisco 350-501 Exam - Topic 5 Question 129 Discussion

Refer to the exhibit.Refer to the exhibit. Routers R1 and R2 are connected over the internet, with the connection passing over four different autonomous systems. The company must mitigate potential DDoS attacks and protect the CPUs of the routers. A network engineer must secure all external connections on edge router R1 based on RFC 5082. R2 has already been secured. Which task should the engineer perform on R1 to achieve the goal?
C) Configure neighbor 182.12.91.5 ttl-security hops 4 under the BGP configuration.
A) Configure ip neighbor 182.12.91.5 bgp multihop-ttl 4 under the global configuration.
B) Configure ip neighbor 182.12.91.5 ttl 4 under the global configuration.
D) Configure neighbor 182.12.91.5 bgp-ttl 4 under the BGP configuration.

Cisco 350-501 Exam - Topic 5 Question 129 Discussion

Actual exam question for Cisco's 350-501 exam
Question #: 129
Topic #: 5
[All 350-501 Questions]

Refer to the exhibit.

Refer to the exhibit. Routers R1 and R2 are connected over the internet, with the connection passing over four different autonomous systems. The company must mitigate potential DDoS attacks and protect the CPUs of the routers. A network engineer must secure all external connections on edge router R1 based on RFC 5082. R2 has already been secured. Which task should the engineer perform on R1 to achieve the goal?

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Suggested Answer: C

by Leanna at May 28, 2026, 10:29 PM

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Floyd
3 days ago
I feel like B is too simple. We need more security.
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Coral
8 days ago
I’m leaning towards A. Multihop TTL could be effective.
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Lashunda
13 days ago
I think D is the best choice. It directly addresses the BGP configuration.
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Solange
19 days ago
I agree! Option C seems solid for security.
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Winifred
24 days ago
This question is tricky! I feel like I need to review BGP configurations more.
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Claribel
29 days ago
B looks interesting, but not sure it’s secure enough.
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Desire
1 month ago
Totally agree with C, it aligns with RFC 5082.
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Micheline
1 month ago
Wait, are we sure about the ttl values?
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Troy
1 month ago
I think A is the best choice here.
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Herminia
2 months ago
Option C seems right for BGP security.
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Alton
2 months ago
I feel like I might have seen something about using "bgp multihop" in a different context, but I’m not sure if it applies here. I need to double-check my notes.
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Louvenia
2 months ago
I think option C sounds familiar because it mentions "ttl-security," but I’m not confident if it’s the right choice for this specific setup.
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Iraida
2 months ago
This question feels similar to one we practiced where we had to secure BGP sessions. I think it might be about configuring TTL, but I can't recall the exact syntax.
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Ena
2 months ago
I remember studying about BGP TTL security, but I'm not entirely sure which command specifically applies to this scenario.
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