How is encryption set for a Unity storage system?

On physical Dell Unity XT models, which storage feature can only be configured from UEMCLI or Rest API?

A storage administrator has a Unity system with its integrated CNA ports having 10 Gb/s optical SFPs. The system is also configured with two IO modules: a 2-port 10 GbE optical IO module in expansion slot 0, and a 4-port 16 Gb/s FC optical IO module in expansion slot 1.
Which Unity port can be used for synchronous replication?

What is the maximum size of a drive partnership group when expanding a Dynamic Pool?

When creating a new LUN on a Dell EMC Unity array using Unisphere, what is the default setting of the Data Reduction feature?