300-085 · Question #6
When configuring mobile and remote access, which three servers must be added manually to the HTTP server allow list on the Expressway-C or VCS-C? (Choose three.)
The correct answer is A. Cisco Unity Connection B. contact photos web server C. Jabber update server. Cisco Unity Connection, the contact photos web server, and the Jabber update server must be manually added to the Expressway-C HTTP allow list because they are not automatically discovered during MRA configuration.
Question
When configuring mobile and remote access, which three servers must be added manually to the HTTP server allow list on the Expressway-C or VCS-C? (Choose three.)
Options
- ACisco Unity Connection
- Bcontact photos web server
- CJabber update server
- DActive Directory domain controller
- EOutlook Web Access
- Fcompany intranet
- GTFTP server
How the community answered
(31 responses)- A84% (26)
- D3% (1)
- F3% (1)
- G10% (3)
Why each option
Cisco Unity Connection, the contact photos web server, and the Jabber update server must be manually added to the Expressway-C HTTP allow list because they are not automatically discovered during MRA configuration.
Cisco Unity Connection must be manually added because Jabber accesses voicemail services over HTTP/HTTPS through the Expressway traversal path, and this server is not auto-populated during MRA setup.
The contact photos web server must be manually added because Jabber fetches user directory photos via HTTP, and without an explicit allow-list entry, the Expressway-C will block these requests.
The Jabber update server must be manually added so that Jabber clients traversing the Expressway path can reach the update service over HTTP to check for and download software updates.
Active Directory domain controllers communicate using LDAP and Kerberos, not HTTP, so they are not relevant to the HTTP server allow list.
Outlook Web Access is not a required or standard component in a Cisco Collaboration Edge or MRA deployment.
The company intranet is too generic and is not a specific server required for MRA to function; only defined service endpoints are added.
The TFTP server delivers configuration files via the TFTP protocol (UDP port 69), not HTTP, so it does not belong in the HTTP server allow list.
Concept tested: Expressway-C HTTP allow list for MRA required servers
Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X14-3/exwy_b_mra-deployment-guide.html
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