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Exam 300-820 topic 1 question 160 discussion

Actual exam question from Cisco's 300-820
Question #: 160
Topic #: 1
[All 300-820 Questions]

An Expressway pairs deployed for Mobile and Remote Access. An administrator installs a new server certificate on the Expressway-E. After installing the new certificate, the UC Traversal zone between Expressway-C and Expressway-E is active. Still, Jabber Mobile and Remote Access clients cannot log in over the Expressway. The certificate Common Name is the FQDN of Expressway-E, “expe01 example.com”, and the certificate contains no additional names. Which Subject Alternate Name must be added to the certificate to allow Jabber Mobile and Remote Access clients to log in successfully?

  • A. FQDN of the Expressway-C, “expc01.example.local”
  • B. registration domain, “example.com” or “collab-edge.example.com”
  • C. Cisco UCM cluster FQDN, “cucmcluster.example.local”
  • D. FQDN of the Expressway-E, “expe01.example.com”
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Suggested Answer: B 🗳️
by Duke_CT at May 14, 2024, 9:42 a.m.

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iamnoone
1 month, 3 weeks ago
Selected Answer: B
Correct Answer: B. registration domain, “example.com” or “collab-edge.example.com” List of common SANs that need to be included, based on the features used: > Expressway-C Any domains (internal or external) added to the domains list. Any persistent chat node aliases if XMPP federation is used. Secure device profile names on CUCM if secure device profiles are used. > Expressway-E Any domains configured on the Expressway-C. Any persistent chat node aliases if XMPP federation is used. Any domains advertised for XMPP federations. https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway/213872-configure-and-troubleshoot-collaboration.html#toc-hId--1328185184
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Duke_CT
5 months, 3 weeks ago
To enable successful login for Jabber Mobile and Remote Access clients, the Subject Alternate Name (SAN) that must be added to the certificate is: B. Registration domain, “example.com” or “collab-edge.example.com” Adding the registration domain as a SAN ensures that the certificate is valid for connections made to the domain used for Mobile and Remote Access, allowing Jabber clients to authenticate successfully over the Expressway.
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