Cisco Exam 300-820 Topic 9 Question 79 Discussion

Actual exam question for Cisco's 300-820 exam

Question #: 79
Topic #: 9

D18912E1457D5D1DDCBD40AB3BF70D5D

Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C. An office administrator is deploying mobile and remote access and sees an issue with the UC traversal zone. The zone is showing ''TLS negotiation failure''. What is causing this issue?

AThe Expressway-E certificate includes the Expressway-C FQDN as a SAN entry

BThe Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate

CIn the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway-E,
which is not a SAN entry in the Expressway-E certificate

DThe Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate

Show Suggested Answer

Suggested Answer: D

by Glen at Jul 08, 2024, 06:25 AM

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William

4 months ago

This question is a real head-scratcher. I'm just going to go with my gut and choose option D. Fingers crossed!

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Jackie

4 months ago

Ha, I bet the office admin is wishing they had a crystal ball to see this issue coming. Looks like option D is the way to go.

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Georgene

3 months ago

The Expressway-E certificate needs to have the FQDN of Cisco UCM listed as a SAN.

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Brigette

4 months ago

Option D seems like the most likely cause of the issue.

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Marleen

4 months ago

Yeah, that TLS negotiation failure can be tricky to troubleshoot.

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Francine

4 months ago

Hmm, I thought the Expressway-C FQDN being missing from the Expressway-E certificate would be the problem. Guess I need to brush up on my Cisco cert knowledge.

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Matt

3 months ago

D) The Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate

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Erasmo

3 months ago

C) In the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway-E, which is not a SAN entry in the Expressway-E certificate

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Bobbye

3 months ago

B) The Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate

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Wilson

3 months ago

A) The Expressway-E certificate includes the Expressway-C FQDN as a SAN entry

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Lorita

5 months ago

Maybe the peer address is set to the IP of the Expressway-E, which is not a SAN entry in the certificate.

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Bettye

5 months ago

But what about the UC Traversal Zone configuration on the Expressway-C?

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Kallie

5 months ago

I agree, it could be because the Expressway-E certificate doesn't have the FQDN of Cisco UCM listed as a SAN.

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Lorita

5 months ago

I think the issue is with the Expressway-E certificate.

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Marsha

5 months ago

The issue is definitely with the Expressway-E certificate not having the FQDN of Cisco UCM as a SAN entry. The TLS negotiation failure is a clear giveaway.

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Jerry

4 months ago

C) In the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway-E, which is not a SAN entry in the Expressway-E certificate

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Eladia

5 months ago

A) The Expressway-E certificate includes the Expressway-C FQDN as a SAN entry

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