To which Skype for Business service does Cisco Meeting Server send media in dual-homed meetings?

Refer to the exhibit. What does this notification indicate about activity over the last 90 days?

An administrator notices that the Cluster section is not available under the configuration menu in the Cisco Meeting Server web interface. There are three Cisco Meeting Server servers that must run Call Bridge and database services in a single cluster. Which configuration should be completed?

An administrator must create conference resources for phones that are registered to Cisco UCM. The administrator adds Cisco Meeting Server as a Conference Bridge to Cisco UCM to accomplish this task.
Where should the administrator add the Conference Bridge to allow phones to use Cisco Meeting Server for conferences?

An administrator performs a major upgrade of a Cisco Meeting Server cluster that contains multiple database nodes. Which step ensures that the Call Bridge can use the database?