300-820 Online Practice Questions and Answers

What is one of the user-related prerequisites for Jabber Team Messaging Mode Installation?

A. Create user accounts in Cisco Webex Control Hub only.

B. Create user accounts in Cisco Unified Communications Manager only.

C. Create user accounts in Cisco Unified IM and Presence.

D. Create user accounts in Cisco Unified CM and Cisco Webex Control Hub.

An Expressway-E is configured using a single NIC with NAT.

How must the Expressway-C traversal client zone be configured to connect to the Expressway-E?

A. TLS verify must be enabled.

B. The zone profile must be set to default.

C. The peer address must be the Expressway-E NAT address.

D. The peer address must be the Expressway-E LAN 1 IP address.

Which two considerations must be made when using Expressway media traversal? (Choose two.)

A. It is possible to NAT both Expressway-E interfaces

B. The Unified Communications traversal zone should be used for MRA

C. The Expressway-E must be put in a firewall DMZ segment

D. Expressway Control is the traversal server installed in the DMZ

E. Cisco UCM zone should be either traversal server or client

Refer to the exhibit. An engineer is deploying mobile and remote access in an environment that already had functioning Business to Business calling. Mobile and remote access SIP registrations are failing. To troubleshoot, SIP logs were collected. How is this issue resolved?

A. Change the SIP profile on the SIP trunk for the Expressway-E to Standard SIP Profile for TelePresence Endpoint

B. Change the "Incoming Port" in the SIP Trunk Security Profile for the Expressway-C to not match SIP line registrations

C. Enable autoregistration for the appropriate DN range on the Cisco UCM servers running the CallManager service

D. Write a custom normalization script since the "vcs-interop" normalization script does not allow registrations

Refer to the exhibit.

If the Webex Teams device cannot connect to Video Mesh Cluster-1 because it is busy, which media node does the Webex Teams device connect to next?

A. Both Cloud Node US-EAST and US-WEST

B. Video Mesh Cluster-2 C. Cloud Node US-EAST

D. Cloud Node US-WEST

What is a benefit of Cisco Webex Messenger Cloud deployment?

A. Cloud deployment is more secure than an on-premises deployment.

B. There is no additional cost to use a cloud deployment.

C. Cloud deployment allows interoperability between Cisco Jabber and Webex Teams users.

D. Cloud deployment is faster than using an on-premises deployment.

A company has a single Expressway-E that exhibits high resource utilization. An engineer checks the logs and finds numerous fraudulent attempts from sip:200@cisco.com. Where must the engineer go to configure a call policy rule and block the desired URI?

A. Call History Configuration > Call Policy > Rules

B. Configuration > Call History > Policy > Rules

C. Configuration > Call Policy > Rules

D. Configuration > Policy > Inbound > Rules

A video device registered with Cisco UCM failed to make an outbound B2B call. From Expressway-C diagnostic logs, an engineer found that the destination pattern is “john@example.com:5061”, and the call was dropped with a 404 response code from Expressway-C. The search rule intended for this call-in Expressway-C is configured for Alias Pattern Match, Pattern type “Suffix,” and Pattern “example.com”. How must the configuration be changed to allow the call?

A. Update the route pattern in Cisco UCM to send calls to “example.com” to the correct port.

B. Create a transform on Expressway-C to strip port numbers.

C. Create a call policy rule on Expressway-E to allow calls to port 5061.

D. Update the call policy list in Expressway-C to allow calls to “example.com”.

A Webex administrator is configuring the Webex Control Hub to enable enterprise users to sign into Webex securely by authenticating to the IdP of the organization. To conform to the SAML specification, to what can the NameID format be set?

A. urn:oasis:names:tc:SAML:2.0:nameid-format:unspecified

B. urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress

C. urn:oasis:names:tc:SAML:2.0:nameid-format:transient

D. urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress

An administrator made changes to a directory connector for Webex AD synchronization. The number of users synchronized is quite large and the change should affect only a limited number of users. How can the administrator check the result before executing the synchronization?

A. Initiate an incremental synchronization from the Director Connector app on the on-premises Windows server because it will ask to save the changes.

B. Initiate a dry run of an incremental synchronization from the Director Connector app on the on-premises Windows server.

C. Initiate a dry run of an incremental synchronization from the Director Connector in Control Hub.

D. Initiate an incremental synchronization from the Director Connector in Control Hub because it will ask to save changes.