Cisco Updated 300-820 Exam Questions and Answers by hashim

Webex Cloud supports either a DMZ-based Mesh Node for security or an internal-based Mesh Node for media control only.

Installing a Video Mesh Node in the DMZ requires you to open TCP and UDP port 4444 in your internal firewall for full clustering functionality.

Installing a Video Mesh Node in the DMZ requires the external firewall to allow UDP traffic from ANY port to the address of the Video Mesh Nodes via port 5004.

Using internal Video Mesh Node also works due to Mobile and Remote Access setup for Webex Teams clients. A DMZ node is added for extra security.

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Configure the Expressway-E by using a non-traversal server zone.

Enable static NAT on the Expressway-E only.

Disable H.323 mode on the Expressway-E.

Enable H.323 H.460.19 demultiplexing mode on the Expressway-C.