300-820 Questions | Free Practice 300-820 Dumps & Exam Prep

Question No 1

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?

Choose the Choices:

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.

Question No 2

Refer to the exhibit. While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?

Choose the Choices:

Question No 3

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

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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.

Question No 4

A company already has a Cisco Unified Communications Manager for internal audio and video traffic, but it requires video communication with external partners and customers. It is important to ensure security for the deployment and the connectivity. What must be set up to enable this requirement?

Choose the Choices:

Cisco Unified Border Element and Cisco ASA Firewall

Cisco Unified Border Element and Cisco Firepower Firewall

Cisco Expressway - C and Cisco Expressway - E

Cisco Expressway - C and Cisco Unified Border Element

Question No 5

When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verify subject name must be configured on the Expressway - E UC traversal zone?

Choose the Choices:

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