Discuss Cisco 500-220 Exam Topic 3 Question 95

Refer to the exhibit.

Assuming this MX has established a full tunnel with its VPN peer, how will the MX route the WebEx traffic?

AWebEx traffic will prefer WAN 2 as long as it meets the thresholds in the ''Conf'' performance class.

BWebEx traffic will prefer WAN 1 as it is the primary uplink.

CWebEx traffic will prefer WAN 2 as long as it is up.

DWebEx traffic will be load-balanced between both active WAN links.

Suggested Answer: A

Assuming this MX has established a full tunnel with its VPN peer, the MX will route the WebEx traffic based on the SD-WAN policy configured in the exhibit. The SD-WAN policy has two performance classes:ConfandDefault.TheConfperformance class matches the traffic with destination port 9000, which is used by WebEx for VoIP and video RTP3. TheConfperformance class has a preferred uplink of WAN 2 and a failover uplink of WAN 1. It also has thresholds for latency, jitter, and loss that determine when to switch from the preferred uplink to the failover uplink. Therefore, the WebEx traffic will prefer WAN 2 as long as it meets the thresholds in theConfperformance class. If WAN 2 exceeds the thresholds or goes down, the WebEx traffic will switch to WAN 1 as the failover uplink.

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24 comments · newest first

Tawanna 12 days ago

D could be right. Balancing traffic is smart for reliability.

Leonora 17 days ago

I’m not sure, but B feels too straightforward.

Louisa 22 days ago

I think C is the answer. As long as WAN 2 is up, why not?

Cyril 27 days ago

I agree with A too! Performance class is key for WebEx.

Moon 1 month ago

I’m leaning towards D. Load balancing sounds efficient.

Howard 1 month ago

I feel like it's A. If WAN 2 meets the thresholds, it makes sense.

Allene 1 month ago

This question is tricky! I think it's B. WAN 1 is primary.

Jina 2 months ago

Exactly! Balancing could help with that.

Alberto 2 months ago

I just want reliable connections for WebEx.

Catrice 2 months ago

True, but A allows flexibility with thresholds.

Leonor 2 months ago

But B is safer for consistent performance.

Jina 2 months ago

D could be a good option too. Load balancing is efficient.

Alberto 2 months ago

C makes sense. As long as WAN 2 is up, it should route there.

Catrice 3 months ago

I lean towards A. If it meets the thresholds, why not?

Leonor 3 months ago

I think it's B. Primary uplink should handle it.

Catarina 3 months ago

Wait, I didn't know WebEx could route like that!

Janine 3 months ago

D) is a possibility, but I doubt it would load-balance in this case.

Jacquline 3 months ago

C) sounds right, as long as WAN 2 is up, it should route there.

Ashton 3 months ago

I think B) makes more sense, WAN 1 is primary after all.

Juan 4 months ago

A) is correct if WAN 2 meets the performance class.

Bobbie 4 months ago

I feel like C could be the right choice since it mentions WAN 2 being preferred as long as it's up, which makes sense for redundancy.

Brent 5 months ago

I’m a bit confused about whether the traffic would really load-balance or not. D seems plausible, but I’m not confident.

Leah 6 months ago

I remember a similar question where the primary uplink was emphasized, so I’m leaning towards B.

Avery 6 months ago

I think the answer might be A, but I'm not entirely sure how the performance class thresholds work in this scenario.

Cisco 500-220 Exam - Topic 3 Question 95 Discussion