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.