Cisco 300-820 Practice Test - Questions Answers, Page 6
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Which two considerations must be made when using Expressway media traversal? (Choose two.)
It is possible to NAT both Expressway-E interfaces
The Unified Communications traversal zone should be used for MRA
The Expressway-E must be put in a firewall DMZ segment
Expressway Control is the traversal server installed in the DMZ
Cisco UCM zone should be either traversal server or client
Jabber cannot log in via Mobile and Remote Access. You inspect Expressway-C logs and see this error message: XCP_JABBERD Detail="Unable to connect to host '%IP%', port 7400:(111) Connection refused"
Which is the cause of this issue?
Rich Media Session licenses are not activated on Expressway-E.
Expressway-E is listening on the wrong IP interface.
The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.
The XCP Service is not activated on Expressway-E.
Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?
IPS
SAML authentication
Cisco Unified CM publisher address
SSO
What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?
ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.
ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.
ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.
When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verity subject name must be configured on the Expressway-E UC traversal zone?
Webex CUSP Cluster Name
Expressway-E Cluster Name
Cisco Unified Communications Manager Publisher FQDN
Expressway-C Cluster Name
Refer to the exhibit. Mobile Cisco Jabber cannot register with on-premises Cisco Unified Communications Manager using Mobile and Remote Access. Some logs were captured on Expressway Edge.
Which action corrects this problem?
Ensure that the peer address does not match the Common Name on certificate.
Ensure that the _cisco-uds SRV record has been configured.
Ensure that the credential has been entered correctly.
Ensure that the SIP domains are added on Expressway Core.
Which two statements about Expressway media traversal are true? (Choose two.)
Expressway Control is the traversal server installed in the DMZ.
The Expressway Edge must be put in a firewall DMZ segment.
Cisco Unified Communications Manager zone can be either traversal server or client.
The Unified Communications traversal zone can be used for Mobile and Remote Access.
Both Expressway Edge interfaces can be NATed.
Which zone is required between Expressway-E and Expressway-C in Mobile and Remote Access deployments?
Unified Communications traversal zone
neighbor zone
DNS zone
traversal zone
For a Mobile and Remote Access deployment, which server's certificate must include the Unified registration domain as a Subject Alternate Name?
Expressway-C server certificate
Cisco Unified Communications Manager server certificate
Expressway-E server certificate
Expressway-C and Expressway-E server certificate
A Jabber user is being prompted to trust the Expressway-E certificate when using Mobile and Remote Access. The administrator has validated that the Expressway-E certificate is being trusted by the machine running the Jabber client.
What else can be done to solve this problem?
Create a new CSR with new information on the SAN field.
Include Cisco Unified Communications Manager registration domain in the Expressway-E certificate as a SAN.
Change the domain name.
Change the FQDN of the Expressway.
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