Applying Property Version Numbers
Property version numbers are applied as an attribute to all objects within AD DS. These numbers are sequentially updated and time-stamped whenever a change is made to that object. If a replication collision occurs, the property version number with the latest time stamp will be enacted, and the older change will be discarded. In the example from the preceding section, the password change with the latest time stamp will be applied to the user.
This concept subsequently requires accurate time synchronization to be a priority for an AD DS domain—although it is not as critical as in other directory services implementations that rely on it for all replication activity.
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