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QUESTION 58
Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?

A. _collab-edge on port 8443
B. _cisco-uds-edge on port 5061
C. _collab-edge on port 5061
D. _cisco-uds on port 8443

Answer: A
Explanation:
8443 is required from the public IP address of the expressway for collab-edge SRV records.

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QUESTION 88
Which complication does a NAT introduce in SDP for a SIP call?

A. Additional headers due to NAT encapsulation can cause the packet size to exceed the MTU.
B. When the client is behind a NAT they may be unable to determine the appropriate offset due to time zones.
C. The IP address specified in the connection data field may be an unrouteable internal address.
D. The encryption keys advertised in the SDP are only valid for clients not behind a NAT.

Answer: D

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QUESTION 80
Between which two DTMF relay methods does the Expressway support interworking? (Choose two.)

A. unsolicited notify
B. RFC 2833
C. KPML
D. passthrough
E. H.245 user input indication

Answer: BE
Explanation:
https://www.cisco.com/c/dam/en/us/td/docs/voice ip comm/expressway/admin guide/Cisco-Expressway-Administrator-Guide-X12-6.pdf

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QUESTION 38
Which part of a hybrid cloud-based deployment with Cisco Webex Messenger Service is used for meeting capabilities?

A. Cisco Unified CM is always used for meeting capabilities.
B. Depending on the media flow, the Webex Meeting Center or local Cisco Unified CM meeting resources are used for meeting capabilities.
C. Depending on the origin of the user, the Webex Meeting Center or local Cisco Unified Communications Manager meeting resources are used for meeting capabilities.
D. Cisco Webex Meeting Center is always used for meeting capabilities.

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