This article explains how you can change the default behaviour of GlobalNameZone zone.
This article explains the registry key which contains the list of RODC Administrators. This article applies only to Windows Server 2008 RODC.
This article explains the use of White Space Logging and how you enable it on the domain controllers.
This article shows how you can see the backup status of each Naming Context in Active Directory using command line tool.
This article explains DsQuery commands which you can use to find all the domain controllers.