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Cisco 350-501 Exam - Topic 3 Question 109 Discussion

Refer to the exihibit.Refer to the exhibit. Routers R1 through R5 are being deployed within the core of a service provider running BGP The core supports distribution of VPNv4 routes using MPLS. R3 currently has multiple paths to reach R4. A network engineer must implement BGP attributes so that R3 can reach R4 via R1. Which action must the engineer take to meet the requirement?
A) Configure R3 so the route to R4 through R1 will have a higher weight than the route from R2 or R5.
B) Configure R2 to send the route from R4 to R1 using a higher metric than what is advertised to R3.
C) Configure R5 to send the route from R4 to R1 using a longer AS path than the AS path that it receives from R1 or R2.
D) Configure R3 so the route to R4 through R1 will have a lower local preference than the route from R2 or R5

Cisco 350-501 Exam - Topic 3 Question 109 Discussion

Actual exam question for Cisco's 350-501 exam
Question #: 109
Topic #: 3
[All 350-501 Questions]

Refer to the exihibit.

Refer to the exhibit. Routers R1 through R5 are being deployed within the core of a service provider running BGP The core supports distribution of VPNv4 routes using MPLS. R3 currently has multiple paths to reach R4. A network engineer must implement BGP attributes so that R3 can reach R4 via R1. Which action must the engineer take to meet the requirement?

Show Suggested Answer Hide Answer
Suggested Answer: A

To direct traffic from R3 to R4 via R1, the weight attribute on R3 can be set higher for the route through R1 compared to other routes. Weight is a Cisco-specific BGP attribute that determines the preferred path when multiple routes to the same destination exist. It is local to the router on which it is configured and not advertised to other BGP peers.


Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course materials.

by Andra at Mar 08, 2025, 02:36 AM

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Sanda
9 months ago
I think option C could work too, but A feels more straightforward.
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Jamie
9 months ago
Just to clarify, does this mean R3 prefers R1 over R2 and R5?
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Izetta
9 months ago
Wait, why would you lower local preference? That seems off.
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Celeste
10 months ago
Definitely agree, option A is the way to go.
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Lonny
10 months ago
A higher weight on R3 for R1 is key!
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Zachary
10 months ago
I think I recall that metrics can influence path selection, so option B might be worth considering, but I’m not completely confident.
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Sabra
10 months ago
This question reminds me of a practice test where we had to manipulate AS paths. I wonder if option C is relevant here too.
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Ronna
11 months ago
I'm not entirely sure, but I feel like local preference is important here. Maybe option D could be the answer?
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Joni
11 months ago
I remember studying BGP attributes, and I think weight is a local setting, so option A might be the right choice.
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Roy
11 months ago
I'm not too sure about this one. There are a few different BGP attributes we could potentially use, like local preference, AS path length, or metric. I'll have to review my notes and think it through step-by-step.
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Cory
11 months ago
Okay, I've got it! The answer is A. We need to configure R3 to give a higher weight to the route through R1 compared to the other paths. That should do the trick.
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Lizette
11 months ago
Hmm, I'm a bit confused by the wording of the question. It's asking about implementing BGP attributes, but doesn't specify which ones we should use. I'll need to think this through carefully.
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Dawne
11 months ago
This looks like a classic BGP routing question. I think the key is to manipulate the BGP attributes to make the route through R1 more preferred on R3.
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Paulene
11 months ago
This is a great question to test our understanding of BGP path selection. I'll methodically go through the options and consider how each one would impact the routing behavior to determine the best solution.
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Nida
11 months ago
I'm not entirely sure about this one. I'll need to review my BGP knowledge and think through the implications of each option carefully before making a decision.
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Juan
11 months ago
Okay, I think I've got this. The key is to configure the BGP attributes on R3 to prefer the route through R1 over the other paths. Option A seems like the right choice here.
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Yoko
11 months ago
Hmm, I'm a bit confused by the wording of the question. I'll need to re-read it a few times to make sure I understand the requirement before selecting an answer.
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Rolf
11 months ago
This looks like a tricky BGP routing question. I'll need to carefully analyze the exhibit and the options to determine the best approach.
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Samira
1 year ago
Hey, at least it's not a Cisco IOS syntax question, right? I'm feeling good about A.
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Layla
1 year ago
Haha, these BGP questions always make my head spin. I'm just going to guess and hope for the best!
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Kirby
1 year ago
I agree with Farrah, a longer AS path would be a more reliable way to ensure R3 reaches R4 via R1.
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Farrah
1 year ago
I think Aracelis is right, configuring R5 to send the route with a longer AS path makes more sense to me.
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Kandis
1 year ago
Hmm, this is a tricky one. I'm leaning towards B, but I could be wrong.
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Flo
1 year ago
User3: I'm not sure, but B does make sense to me too.
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Nichelle
1 year ago
User2: I agree, B seems like the right choice.
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Pearlene
1 year ago
User1: I think B is the correct option.
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Juliana
1 year ago
I'm pretty sure C is the right answer. Messing with the AS path is the way to go here.
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Cathrine
1 year ago
I agree, tweaking the AS path is a common practice in BGP to influence routing decisions.
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Nguyet
1 year ago
Yeah, manipulating the AS path is a common way to control routing. Good choice.
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Domonique
1 year ago
I think C is the best option too. Changing the AS path should do the trick.
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Glen
1 year ago
But wouldn't configuring R3 with a higher weight for the route to R4 through R1 ensure that it takes that path?
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Emerson
1 year ago
Option A seems like the way to go. Gotta love those BGP attributes!
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Carlton
1 year ago
User1: True, it's always good to weigh all our options before making a decision.
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Lindsey
1 year ago
User3: I'm not so sure, maybe we should consider the other options as well.
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Danica
1 year ago
User2: Agreed, BGP attributes can really help with routing.
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Chun
1 year ago
User1: I think option A is the best choice.
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Aracelis
1 year ago
I disagree, I believe the correct answer is C) Configure R5 to send the route from R4 to R1 using a longer AS path than the AS path that it receives from R1 or R2.
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Glen
2 years ago
I think the answer is A) Configure R3 so the route to R4 through R1 will have a higher weight than the route from R2 or R5.
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