Become Cisco Certified with updated 300-820 exam questions and correct answers

An administrator is configuring a new Cisco Webex Hybrid Message Service deployment, and the Expressway-C Message Connector is successfully registered in the Control Hub. After the server information of the IM and Presence server is added to the Expressway-C, an error “Connectivity to IM and Presence AXL Service could not be established” is displayed in the Control Hub. The Cisco AXL Web Service is enabled on the IM and Presence Service publisher, and the main administrator account enabled for AXL API permission is being used. Which configuration change must be made to resolve this error?
Refer to the exhibit. A manager asks an engineer to create a CSV file for the HTTP allow list on the
Expressway deployment. The engineer wrote the script shown and uploaded it to the Expressway, but it is not
being accepted. Which action resolves the issue?
An engineer must configure Mobile and Remote Access. One of the requirements is to expect Cisco Jabber users to enter username@cisco.com as the login userid. Which DNS record must the engineer modify to start implementing this requirement?
An engineer must enable the communication between two separate Expressway-C servers to allow inbound and outbound calling between different endpoints registered on each server. Which configuration must happen?
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