Cisco 300-820 Dumps PDF Free Download - 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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