To replicate the domain database from one Windows NT Advanced Server domain controller to one server of the domain, or to all the servers of a domain. This is usually performed automatically by the system, but can also be invoked manually by an administrator.
To replicate the domain database from the primary domain controller (PDC) to one backup domain controller (BDC) of a domain, or to all the BDCs of a domain. This usually is performed automatically by the system, but can also be invoked manually by an administrator.
Process of ensuring the files on the Agent computer and the copies on the backup server match. This involves comparing the metadata (for example, security data) for the source files on the Agent computer to the backup copies, and replicating file system changes and changed files to the backup server. See also initial synchronization, replicate, replication.