Windows Server 2003, and Windows NT 4.0
There are four domain functional levels for Windows Server 2003: Windows 2000 mixed Windows 2000 native Windows Server 2003 interim Windows Server 2003
Windows Server 2003 interimSupported domain controllers: Windows NT 4.0, Windows Server 2003Supported features: There are no domain-wide features activated at this level. All domains in a forest are automatically raised to this level when the forest level increases to interim. This mode is only used when you upgrade domain controllers in Windows NT 4.0 domains to Windows Server 2003 domain controllers.
Windows Server 2008 is the most recent release of Microsoft Windows' server line of operating systems. Released to manufacturing on 4 February 2008 and officially released on 27 February 2008, it is the successor to Windows Server 2003, released nearly five years earlier. Like Windows Vista, Windows Server 2008 is built on the Windows NT 6.0 kernel. A second release, named Windows Server 2008 R2, is currently under development.
Windows Server 2008 is the most recent release of Microsoft Windows' server line of operating systems. Released to manufacturing on 4 February 2008 and officially released on 27 February 2008, it is the successor to Windows Server 2003, released nearly five years earlier. Like Windows Vista, Windows Server 2008 is built on the Windows NT 6.0 kernel. A second release, named Windows Server 2008 R2, is currently under development.
In Windows Server 2011 it is called Active Directory.
NO
Windows 2000 Server and Windows NT Server 4.0 (SP5).
No, it is not.
Release 2
Client server A Computer Joined In The Domain With Client OS like Windows XP, Windows vista, Windows 7 etc. and Member server A Computer Joined In The Domain With Server OS like windows server 2000,Windows Server 2003,windows server 2008
Client server A Computer Joined In The Domain With Client OS like Windows XP, Windows vista, Windows 7 etc. and Member server A Computer Joined In The Domain With Server OS like windows server 2000,windows server 2003,windows server 2008