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Question 183 - 300-810 discussion

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A company is setting up B2B instant messaging capability using a secure client integrated into the on-premises Cisco communication platform. During the setup, the engineer discovers that external Usages from other businesses do not seem to reach the Cisco Expressway for instant messaging, but B2B calling seems to be working Internal chat between clients and chat toward clients is king m home offices using Mobile and Remote Access The engineer verified that the correct ports have been configured on the Cisco ASA, and the firewall rules on the expressway show no cation of any traffic What is the cause of the issue?

A.

The XMPP service is not activated on the Cisco Expressway

Answers
A.

The XMPP service is not activated on the Cisco Expressway

B.

The Cname record for XMPP is not configured or is misconfigured.

Answers
B.

The Cname record for XMPP is not configured or is misconfigured.

C.

The SRV record for XMPP is not configured or is misconfigured.

Answers
C.

The SRV record for XMPP is not configured or is misconfigured.

D.

The XMPP service is not running under services in Cisco IM and Presence Server

Answers
D.

The XMPP service is not running under services in Cisco IM and Presence Server

Suggested answer: C

Explanation:

In Business-to-Business (B2B) instant messaging using Cisco Expressway, SRV records are crucial for external users to discover and connect to the correct XMPP service. The fact that B2B calling works but not instant messaging points towards a service discovery issue specific to XMPP.

SRV records for XMPP:Typically, the domain would have an SRV record like 'xmpp-client.[invalid URL removed]' pointing to the Expressway.

asked 10/10/2024
franz yap
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