300-820 Online Practice Questions and Answers

How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?

A. add the specific URI in the firewall section of the Expressway and block it

B. block the call with a call policy rule in the Expressway-E

C. add a search rule route all calls to the Cisco UCM

D. configure FAC for the destination alias on the Expressway

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?

A. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.

B. The call is queued.

C. The call fails.

D. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.

The Cisco Webex Hybrid Message service is deployed geographically for separate Cisco Unified IM and Presence clusters. What must be configured in the Cisco Webex Control Hub to achieve this deployment?

A. geo-locations

B. distributed DNS

C. verified domains

D. resource groups

Which step is required when configuring cloud and hybrid deployments for Cisco Jabber?

A. Add the Jabber user to Cisco Unity Connection.

B. Add the Jabber user to Expressway-E.

C. Add the Jabber user to Expressway-C.

D. Add Jabber Users to the Cisco Webex Administration Tool.

Which role does Call Policy play when preventing toll fraud on Expressways?

A. It controls which calls are allowed, which calls are rejected, and which calls are redirected to a different destination.

B. It changes the calling and called number on a call.

C. It changes the audio protocol used by a call through Expressways.

D. It changes the audio codec used in a call through Expressways.

An organization wants to be able to call IP addresses and URI addresses. An engineer must configure Cisco Expressways to manage this request from the endpoints in the organization. How would the engineer configure the Expressways to allow these calls to be completed to external IP addresses?

A. Set calls to unknown IP addresses to direct on the Cisco Expressways, and add a search rule on the Expressway-E

B. Set calls to unknown IP addresses to indirect on the Cisco Expressways, and add a search rule on the Expressway-E

C. Use search rules to manage calls to IP addresses, and the direct/indirect setting on the Expressway is used as a fallback only if the search rules do not exist

D. Set calls to unknown IP addresses to indirect on the Expressway-C and direct on the Expressway-E, and add a search rule on the Expressway-E

An engineer learns from an end user that calls from outside the company are not being received. Calls are being made to other businesses outside of the company on video using URL addresses. The change management log shows no changes in the configuration of the collaboration solutions. The engineer examines the endpoint, which seems to be registered to the Cisco UCM, and the SIP trunk between the Cisco UCM and sees that the Expressway is also up. In addition, the traversal link shows no errors between the Expressways. Which action must the engineer take to troubleshoot this issue?

A. On the Cisco UCM, run the Real-Time Monitoring Tool to see if any incoming calls fail.

B. On the Expressway-E, run diagnostic logging under maintenance to see if any requests reach the system.

C. On the Expressway-E, check the NTP settings to ensure that TLS will be able to terminate. If the clock is out of sync, incoming calls from other working systems would work bur not outgoing calls from the company.

D. On the Expressway-C, run a network log under administrative tools to see if any requests reach the system.

Refer to the exhibit.

An administrator troubleshoots Cisco Jabber users experiencing issues when trying to log in and notices errors in the Jabber problem report log. The administrator also sees that the Intercluster Sync Agent service is not running on the IMM and Presence server. Why is the Jabber client unable to sign in?

A. The XmppSDK.dl file is missing from the IM and Presence server

B. The XMPP stanza is not using the correct ID for the Jabber client.

C. The XMPP bind failed on the IM and Presence server

D. The Jabber client refused the XMPP bind connection.

An employee has recently left an organization and a manager suspects that this employee may have made changes to the system that no one is aware of. Mobile and Remote Access registration is not working. Internal communications appear to be working, but no external system is able to register or call anywhere. While investigating this problem, it is discovered that no internal systems are able to call externally either. What is the TraversalZone missing that is causing this issue?

A. SIP trunk to the DefaultZone

B. route pattern to the DefaultZone

C. link to the DefaultZone

D. pipe to the DefaultZone

Which user management method uses the Webex Directory Connector to add and synchronize users to the Control Hub organization?

A. Synchronize from Active Directory.

B. Synchronize from Azure AD.

C. Synchronize from “Add using People API”.

D. Synchronize from Okta.