Cisco Related Exams
300-820 Exam
Refer to the exhibit.

When a Jabber user attempts to connect from outside of the organization, the user enters the login information as "user@example.com" and receives the error "Cannot find your services Automatically". The engineer tries to resolve SRV records used by Jabber.
DNS A record "expressway-e.example.com" points to the Expressway-E IP and "cucm.example.com" points to the Cisco Unified Communications Manager.
Which change resolves the DNS problem?
Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?
Which mechanism does TLS use to validate identity?