How does directory synchronization occur between the on-premises replication hub and the
IBM SmartCloud Notes directory sync server?
A.
Directory synchronization occurs each time the Domain Configuration tool runs.
B.
Directory synchronization occurs when the SmartCloud Notes directory sync server 
connects directly to the on-premises replication hub.
C.
Directory synchronization occurs when the company administrator initiates replication with 
the SmartCloud Notes directory sync server from the on-premises replication hub console.
D.
Directory synchronization occurs when the SmartCloud Notes directory sync server 
connects to the on-premises replication hub via a passthru 
server.