Which function of the Cisco IM and Presence high availability solution is true?
Click on the arrows to vote for the correct answer
A. B. C. D.D.
https://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-im-presence-service/200958-IM-and-Presence-The correct answer is D. When a high availability event takes place, the end user sessions are moved from the failed server to the backup.
Explanation: Cisco IM and Presence high availability solution is used to provide redundancy and continuity of service in case of a server failure or maintenance. This solution utilizes a backup server, which can take over the operations in case of a failure in the primary server.
When a high availability event takes place, the end user sessions are moved from the failed server to the backup. This is done to ensure that the users can continue their sessions without interruption or loss of data. The backup server takes over the operations seamlessly, and the users can continue to use the service without any noticeable change.
Option A is incorrect because when the server has been restored to a normal state, user sessions should be moved back to the primary server. This is done to ensure that the load is balanced between the primary and backup servers.
Option B is incorrect because when an event takes place, the end user sessions are moved from the failed server to the backup. This is done to ensure that the users can continue their sessions without interruption or loss of data.
Option C is incorrect because the failback process is not automatic in Cisco IM and Presence high availability solution. The administrator needs to initiate the failback process manually once the primary server is restored to normal operation.
In summary, Cisco IM and Presence high availability solution ensures continuity of service by moving user sessions from the failed server to the backup server in case of a high availability event.