300-820 Online Practice Questions and Answers

Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?

A. IPS

B. SAML authentication

C. Cisco Unified CM publisher address

D. SSO

An administrator has been tasked to bulk entitle 200 existing users and ensure all future users are automatically configured for the Webex Hybrid Calendar Service. Which two options should be used to configure these users? (Choose two.)

A. Export a CSV list of users in the Cisco Webex Control Hub, set the Hybrid Calendar Service to TRUE for users to be enabled, then import the file back to Manage Users menu in the Cisco Webex Control Hub.

B. Set up an Auto-Assign template that enables Hybrid Calendar.

C. Select the Hybrid Services settings card in the Cisco Webex Control Hub and import a User Status report that contains only users to be enabled.

D. On the Users tab in the Cisco Webex Control Hub, check the box next to each user who should be enabled, then click the toggle for the Hybrid Calendar service to turn it on.

E. From Cisco Webex Control Hub, verify the domain that your Hybrid Calendar users will use, which automatically activates them for the service.

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.

Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?

A. _cisco-uds._tcp.

B. _cisco-mra._tls.

C. _collab-edge._tls.

D. _cisco-expwy._tls.

Refer to the exhibit.

Which description of the transformation is true?

A. It converts [email protected]: to [email protected]

B. It changes all patterns that begin with [email protected]: to [email protected]

C. It changes [email protected]: to [email protected]

D. It converts [email protected]: to [email protected]

Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?

A. Mobile and remote access login has not been enabled for the domain configured in the Expressway-C. The domain must be edited to allow Cisco UCM registrations.

B. SIP is disabled on the Expressway-E. The SIP protocol must be enabled on the server.

C. No Cisco UCM servers are configured in the Expressway-C. Servers must be added for CallManager and IM and Presence services.

D. Although a traversal client zone exists, there is no Unified Communications traversal client zone. One must be created.

Refer to the exhibit.

Mobile and remote access is being added to an existing B2B deployment and is failing.

When the administrator looks at the alarms on the Expressway-C, the snippets are shown. Which configuration action should the administrator take to fix this issue?

A. The listening port on the Expressway-C for SIP TCP must be changed to a value other than 5060

B. The listening port on the Expressway-C for SIP TLS must be changed to a value other than 5061

C. The listening port on the Cisco UCM for the Expressway-C SIP trunk must be changed to something other than 5060 or 5061

D. The listening port on the Cisco UCM for the Expressway-C SIP trunk is set to something other than 5060 or 5061. It must be set to 5060 for insecure and 5061 for secure SIP

Cisco Collaboration endpoints are exchanging encrypted signaling messages.

What is one major complication in implementing NAT ALG for voice and video devices?

A. Internal endpoints cannot use addresses from the private address space.

B. The NAT ALG cannot inspect the contents of encrypted signaling messages.

C. NAT ALG introduces jitter in the voice path.

D. Source addresses cannot provide the destination addresses that remote endpoints should use for return packets.

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?

A. Ensure that the peer address does not match the Common Name on certificate.

B. Ensure that the _cisco-uds SRV record has been configured.

C. Ensure that the credential has been entered correctly.

D. Ensure that the SIP domains are added on Expressway Core.

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?

A. Webex CUSP Cluster Name

B. Expressway-E Cluster Name

C. Cisco Unified Communications Manager Publisher FQDN

D. Expressway-C Cluster Name

Which protocol should be used to verify the connectivity for different media paths found during a call using ICE?

A. STUN

B. RTP

C. SNMP

D. TURN

When determining why Mobile and Remote Access to Cisco TelePresence equipment does not work anymore for an organization. There are several administrators and configuration changes could have happened without anyone knowing. Internal communication seems to be working, but no external system can register or call anywhere. Gathering symptoms, you also discover that no internal systems can call out either.

What is TraversalZone missing that causes this issue?

A. link to the DefaultZone

B. pipe to the DefaultZone

C. SIP trunk to the DefaultZone

D. route pattern to the DefaultZone

When the network requirements are configured for a new Video Mesh deployment, which firewall ports are required so that Video Mesh cascade signaling succeeds?

A. TCP 443 and 444

B. TCP 443 and 8443

C. UDP 5004 and 5005

D. UDP 33432 through 33433

An engineer configures a Cisco Collaboration environment to use Mobile and Remote Access for external access for company users. The engineer uses OAuth with refresh on the Cisco UCM SIP lines for extra security and improved user experience. During the setup, Mobile and Remote Access does not work, it is enabled on the Cisco UCM and Cisco Expressways. SIP trunks on ports 5090 and 5091 are configured to avoid con icts with other SIP trunks between internal Cisco UCM clusters. The traversal zone also uses port 6500. The traversal zone between Expressways shows no errors, and the requests hit Expressway-E from the Internet. What is the reason that the solution does not work?

A. Mobile and Remote Access does not support OAuth with refresh with this configuration,

B. The default port for Mobile and Remote Access is 6001. Therefore, the traversal port must be port 6001 for Mobile and Remote Access to work.

C. The default port for Mobile and Remote Access is 6500, which creates a con ict with the existing traversal zone port.

D. The default port for Mobile and Remote Access is 5091, which creates a con ict with the existing SIP trunks.

DRAG DROP

Drag and drop the services from the left onto their descriptions on the right. Some services are used more than once.

Select and Place: