You are the Exchange administrator of the Xxx Corporation’s Exchange 2010 organization.You have configured a Database Availability Group （DAG） named DAG01.You need to change the replication port used by the DAG.What are two things that you must do？（）

A. Use the Exchange Management Console （EMC） to change the TCP port used for replication.
B. Use the Exchange Management Shell to change the TCP port used for replication.
C. Modify the Windows Firewall exceptions on each member of the DAG to open the replication port.
D. Modify the Windows Firewall exceptions on the witness server of the DAG to open the replication port.
E. Use the Exchange Management Shell to configure the DAG IP address of 0.0.0.0.
F. Use the Exchange Management Shell to change the DAG IP address to 127.0.0.1.