1) To replicate directory information between domain controller A and domain controller B fully, two connection objects are required.
2) One connection object enables replication from domain controller A to domain controller B
3) This connection object exists in the NTDS settings object of domain controller B.
4) A second connection object enables replication from the domain controller B to domain controller A.
5) This second connection object exists in the NTDS settings object of the domain controller A.