Implementing Cisco Collaboration Cloud and Edge Infrastructure (CLCEI) — Question 83

Cisco Jabber clients are failing to log in using Mobile and Remote Access. The administrator checked the Jabber problem report logs and saw that connections to the Expressway-E are being refused on TCP port 8443. From a packet capture run on the Jabber client while attempting to log in, there is no response to the TCP SYN packets sent to the Expressway-E by Jabber. Which two reasons are causing the Expressway-E to be unreachable on port 8443 from the internet? (Choose two.)

Answer options

• A. The Jabber clients using an outdated version.
• B. The Unified Communications zone is down.
• C. The firewall is blocking the port.
• D. The certificate for Jabber is expired.
• E. The SRV record for _cisco-uds is misconfigured.

Correct answer: C, E

Explanation

The correct answers are C and E. The firewall blocking port 8443 can prevent access to the Expressway-E, while a misconfigured SRV record for _cisco-uds can disrupt the resolution of the necessary services for Jabber logins. Options A, B, and D do not directly relate to the connectivity issue described in the scenario.