Online Access Free Cisco.300-820.v2021-08-30.q71 Practice Test (Page 5)

300-820 Exam Question 16

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

A.The IP address specified in the connection data field may be an unrouteable internal address.

B.The encryption keys advertised in the SDP are only valid for clients not behind a NAT.

C.Additional headers due to NAT encapsulation can cause the packet size to exceed the MTU.

D.When the client is behind a NAT they may be unable to determine the appropriate offset due to time zones.

300-820 Exam Question 17

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 Expressway-C so that MRA registered clients reach this server?

A.The directory photo server FQDN must be added to the Expressway-C certificate.

B.A neighbor zone must be created to the directory photo server.

C.The directory photo server must be added to the HTTP allow list.

D.A search rule must be created to route the requests to Cisco UCM.

300-820 Exam Question 18

Which service is available in a cloud-based deployment using Cisco Webex Messenger?

A.Presence

B.Phone services

C.Voicemail

D.Call forward services

300-820 Exam Question 19

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

300-820 Exam Question 20

A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP.
Which functionality would describe the feature that needs to be enabled and where to achieve this?

A.Interworking in Cisco Unified Communications Manager

B.Interworking in Expressway-C

C.Transcoding in Expressway-C

D.Transcoding in Cisco Unified Communications Manager

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300-820 Exam Question 16

300-820 Exam Question 17

300-820 Exam Question 18

300-820 Exam Question 19

300-820 Exam Question 20

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