300-820 Exam Questions and Answers | Exam-Dumps (Page: 5)

QUESTION: 21

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

STUN
RTP
SNMP
TURN

Answer(s): A

Reference:

https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html

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QUESTION: 22

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

Off
Best Effort
Auto
Force Encrypted

Answer(s): A

Reference:

https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/admin_guide/Cisco-Expressway-Administrator-Guide-X8-10.pdf

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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 Expressway-E communicate?

Expressway-C establishes an outgoing request to Expressway-E, enabling the Expressway-E in the DMZ to notify the internal Expressway-C of an incoming call from an external endpoint.
Internal endpoints are registered to Expressway-E in the DMZ. Expressway-C, which is also in the DMZ, will receive and make calls on behalf of Expressway- E because they are in the same network.
Expressway-E establishes an outgoing request to Expressway-C, enabling the Expressway-C in the DMZ to notify the internal Expressway-E of an incoming call from an external endpoint.
Internal endpoints are registered to Expressway-C in the DMZ. Expressway-E, which is also in the DMZ, will receive and make calls on behalf of Expressway- C because they are in the same network.

Answer(s): A

Reference:

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-5/exwy_b_mra-expressway-deployment-guide/exwy_b_mra- expressway-deployment-guide_chapter_00.html

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QUESTION: 24

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

call routing
traversal subzone
call policy
search rule

Answer(s): A

Reference:

https://cmslab.ciscolive.com/pod8/cucm/expctrunk

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QUESTION: 25

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

connection
name
version
bandwidth

Answer(s): B

Reference:

https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-10/Mobile-Remote-Access-via-Expressway-Deployment-
Guide-X8-10.pdf

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Cisco 300-820 Exam (page: 5)
Cisco Implementing Collaboration Cloud and Edge Solutions
Updated on: 15-Feb-2026

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QUESTION: 25

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Cisco 300-820 Exam (page: 5) Cisco Implementing Collaboration Cloud and Edge Solutions Updated on: 15-Feb-2026

QUESTION: 21

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QUESTION: 25

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Cisco 300-820 Exam (page: 5)
Cisco Implementing Collaboration Cloud and Edge Solutions
Updated on: 15-Feb-2026