Active Directory Authoritative and Non Authoritative restore
F ocus: Authoritative and Non Authoritative restoration Non Authoritative Restore Non-Authoritative restore brings back the DC to its state at the time of backup. After the restoration, other DCs will replicate with the newly restored DC with the changes occurred after the backup. This method is mainly used when a DC fails due to hardware/software issue. Non-Authoritative restore is performed in Directory Service Restore Mode (DSRM).