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Cisco 350-501 Exam - Topic 15 Question 36 Discussion

A remote operation center is deploying a set of l-BGP and E-BGP connections for multiple IOS-XR platforms using the same template. The l-BGP sessions exchange prefixes with no apparent issues, but the E-BGP sessions do not exchange routes. What causes this issue?
C) The E-BGP neighbors are not allowed to exchange information doe to the customer platforms default policy.
A) A PASS ALL policy has no! been implemented for the l-BGP neighbors.
B) The next-hop-self command is not implemented on both E-BGP neighbors.
D) The l-BGP neighbors are mistyped and HELLO packets cannot be exchanged successfully between routers. https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-2/routing/configuration/guide/b-routing-cg-asr9000-62x/b-routing-cg-asr9000-62x_chapter_010.html

Cisco 350-501 Exam - Topic 15 Question 36 Discussion

Actual exam question for Cisco's 350-501 exam
Question #: 36
Topic #: 15
[All 350-501 Questions]

A remote operation center is deploying a set of l-BGP and E-BGP connections for multiple IOS-XR platforms using the same template. The l-BGP sessions exchange prefixes with no apparent issues, but the E-BGP sessions do not exchange routes. What causes this issue?

Show Suggested Answer Hide Answer
Suggested Answer: C

by Christiane at May 04, 2022, 03:07 PM

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Shoshana
10 months ago
No way, I thought the HELLO packets were only for l-BGP!
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Lorita
10 months ago
Yeah, the default policy can block route exchanges. Makes sense!
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Nana
11 months ago
Wait, are you saying the l-BGP neighbors are mistyped? That sounds odd.
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Cyril
11 months ago
I think it's definitely a policy issue with the E-BGP neighbors.
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Dyan
11 months ago
E-BGP needs next-hop-self for proper route exchange.
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Delfina
11 months ago
Hmm, I'm not totally sure about this one. I know SSH uses port 22, but I'm not 100% certain about the HTTPS port. Let me think this through carefully.
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Christa
11 months ago
This looks like a tricky one. I'll need to carefully think through the potential for an infinite loop and how the platform might handle that.
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Elouise
11 months ago
Hmm, I'm not too familiar with the different network tools, so I'm not 100% sure on this one. I'll have to think it through carefully.
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Amina
11 months ago
"Competitive differentiation" seems off, but I have a vague recollection of it relating to pricing strategies in our discussions.
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Omer
11 months ago
Okay, let's see. I know RAID 1+0 provides redundancy through mirroring, so that could help with random writes. And I think RAID 1+0 has lower processing overhead compared to RAID 5/6. I'll go with those two.
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Clari55a
4 years ago
C. Is correct.
upvoted 1 times
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