Discuss Cisco 300-420 Exam Topic 10 Question 123

Refer to the exhibit.

Refer to the exhibit. A network engineer working for a private service provider with an employee ID: 4670:71:451 must design a BGP solution based on:

All traffic originating from AS100 must pass through AS200 to reach the NTP and DHCP server

When a link failure occurs between R3 and R4, traffic must follow the R2-R9 link to reach the NTP and DHCP server.

Which solution must the design include?

ARouters R3 and R10 advertise an IGP metric into BGP during redistribution in both directions.

BRouter R6 influences the paths of R9 and R11 to the DC with a higher AS-PATH value.

CRouters R3 and R10 advertise a lower local preference for outgoing traffic and a higher AS-PATH value for incoming traffic.

DRouter R3 applies a local preference of 200 for R1. R2. R9. and R11 routers to reach the data center.

Suggested Answer: D

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12 comments · newest first

Elouise 3 months ago

I’m leaning towards option C. Lower local preference can help manage traffic better.

Paris 3 months ago

I feel option A could work too. IGP metrics in BGP? Sounds solid.

Cathern 3 months ago

This question is tricky! I think option D makes sense.

Sarina 3 months ago

Local preference of 200 for R1, R2, R9, and R11 is a solid choice!

Sang 4 months ago

I disagree, option C seems more effective for traffic management.

Diane 4 months ago

Wait, can R3 really influence that many paths? Sounds tricky.

Jettie 5 months ago

I think option D makes the most sense here.

Chantell 6 months ago

AS100 traffic needs to go through AS200, that's key.

Tyra 6 months ago

I think option A could work since it talks about IGP metrics and redistribution, but I’m not entirely confident about how that interacts with BGP.

Sylvie 6 months ago

I’m a bit confused about the AS-PATH values. I thought they were more about inbound traffic control, not sure how they apply here.

Wava 7 months ago

This question feels similar to one we did in class about BGP path selection. I think option D might be the best fit since it mentions local preference.

Alfred 7 months ago

I remember something about local preference influencing outbound traffic, but I'm not sure if it's the right choice here.

Cisco 300-420 Exam - Topic 10 Question 123 Discussion