300-820 Practice Questions

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

A Jabber user is being prompted to trust the Expressway-E certificate when using Mobile and Remote Access. The administrator has validated that the Expressway-E certificate is bein...

Which two items are configured when deploying a B2B collaboration solution? (Choose two.)

Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)

While troubleshooting a connectivity issue between Cisco Unified Communications Manager, Expressway-C, and Expressway-E, an engineer sees this output in the Expressway-E logs. Even...

A company has a traversal client that resides in the DMZ in the enterprise network and has a requirement for B2B calling. Which Cisco Collaboration Edge component addresses this re...

What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?

Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?

Cisco Collaboration endpoints are exchanging encrypted signaling messages. What is one major complication in implementing NAT ALG for voice and video devices?

Which step is taken when configuring a Cisco Expressway solution?

An administrator is configuring a new Cisco Webex Hybrid Message Service deployment, and the Expressway-C Message Connector is successfully registered in the Control Hub. After the...

Refer to the exhibit. When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?

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?

Refer to the exhibit. Which description of the transformation is true?

You must install an Expressway Edge server pair to enable mobile and remote access for a customer network. Which two requirements are used to install an MRA solution successfully?...

Which two statements about Expressway-C / Expressway-E Firewall Traversal are correct? (Choose two.)

Which media encryption mode can be configured on an Expressway zone?

What is the purpose of a transform in the Expressway server?

A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network. Which statement is true?

An organization with a domain name of example.com. Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)

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

Refer to the exhibit. Which inbound connection should an administrator configure on the outside firewall?

Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway?

Which two licenses are required for the Expressway B2B feature to work? (Choose two)

A MRA deployment is being configured where one of the requirements is for registered Jabber users to pull directory photos from an internal server. What should be configured on the...

An external Jabber device cannot register. While troubleshooting this issue, the engineer discovers that privately signed certificates are being used on Expressway-C and Expressway...

Which connection does the traversal zone configuration define?

Refer to the exhibit. The firewall has been configured from NAT 192.168.108.2 to 100.64.0.1. Which configuration changes are needed for an Expressway-E with dual network interfaces...

An engineer wants to configure a zone on the Expressway-E to receive communications from the Expressway-C in order to allow inbound and outbound calls. How is the peer address conf...

Between which two DTMF relay methods does the Expressway support interworking? (Choose two.)

Refer to the exhibit. A new neighbor zone is added for a new Cisco Meeting Server, but the zone is showing a SIP status of failed from the time the zone it was created. What should...

What allows endpoints behind a NAT to discover the paths through which they will pass media?

Which two types of information does Cisco Expressway back up? (Choose two.)

When a Cisco Webex Video Mesh Node is co figured for an organization, which process does the Webex Teams client use to discover the optimal bridging resource?

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

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

Refer to the exhibit. Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)

Which complication does a NAT introduce in SDP for a SIP call?

Cisco media traversal technology has enabled a secure environment where internal video endpoints call and receive calls from external video endpoints. How does the Expressway-C and...

Which dial plan component is configured in Expressway-C to route a call to the Cisco UCM?

Which attribute in the SDP for a call is affected by the static NAT address configuration in an Expressway-E?

An engineer is deploying an Expressway solution for the SIP domain Cisco.com. Which SRV record should be configured in the public DNS to support inbound B2B calls?

A call is sent by Cisco UCM to Expressway with a URI of [email protected]. If (7508...) @expc1a\.pod8\.test\.lab.* is the pattern string, what would be the replacement...

Refer to the exhibit. Calls to locally registered endpoints are failing. At present, there are two endpoints registered locally to this Expressway. An H.323 endpoint with an alias...

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 re...

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

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 snip...

Refer to the exhibit. The administrator attempted to log in, but Jabber clients cannot log in via mobile and remote access. How is this issue resolved?

Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C. An office administrat...

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 option...