The Directory settings determine how a task interacts with the directory service.
Determines whether the system should force replication between Active Directory domain controllers when the task completes. Forcing Active Directory replication can ensure that, for example, a recently created user account is available on all Domain Controllers for use in subsequent tasks such as setting NTFS permissions on a file or folder.
Do not replicate
The task should not attempt Active Directory replication.
Replicate Active Directory
The task should attempt Active Directory replication, however if replication fails to complete the task should not fail.
Ensure Active Directory Replication
The task should ensure Active Directory replication, if replication fails to complete the task should fail.
Determines whether the task should commit every setting change that is made to Active Directory immediately. This can assist in troubleshooting - for example, as detailed in the article