300-820 Free Practice Test

For a Mobile and Remote Access deployment, which server's certificate must include the Unified registration domain as a Subject Alternate Name?

1. A. Expressway-C server certificate
2. B. Cisco Unified Communications Manager server certificate
3. C. Expressway-E server certificate
4. D. Expressway-C and Expressway-E server certificate

Correct Answer: C

Which step is taken when configuring a Cisco Expressway solution?

1. A. Configure the Expressway-E by using a non-traversal server zone.
2. B. Enable static NAT on the Expressway-E only.
3. C. Disable H.323 mode on the Expressway-E.
4. D. Enable H.323 H.460.19 demultiplexing mode on the Expressway-C.

Correct Answer: B

What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?

1. A. ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.
2. B. ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
3. C. ICE uses FAST updates to optimize the video quality in case of packet los
4. D. This technology is available only from Cisco Unified CM version 11.5 and later.
5. E. ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.

Correct Answer: B

Which step is required when configuring Cisco Webex Hybrid Message Service?

1. A. Register Expressway-C Connector Hosts to the Cisco Webex Cloud.
2. B. Register Expressway-C to Cisco Unified Communications Manager.
3. C. Add Expressway-C and Cisco United CM to the Cisco Webex Cloud.
4. D. Add Cisco Unity Connection to Expressway-E.

Correct Answer: A

Refer to the exhibit. Cisco Unified Communications Manager routes the call via the Webex Meetings route list and route group to the Video Mesh cluster Node#1 in the Video Mesh cluster is hosting the meeting and has reached full capacity, but other nodes in the cluster still have spare capacity.
What happens to the participant's call?

1. A. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
2. B. The call is queued.
3. C. The call fails.
4. D. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.

Correct Answer: D