Windows 2000/2003 Active Directory domains utilize a Single Operation Master method called FSMO (Flexible Single Master Operation), as described in Understanding FSMO Roles in Active Directory.
The five FSMO roles are:

Schema master - Forest-wide and one per forest.
Domain naming master - Forest-wide and one per forest.
RID master - Domain-specific and one for each domain.
PDC - [...]

Windows 2000/2003 Active Directory domains utilize a Single Operation Master method called FSMO (Flexible Single Master Operation), as described in Understanding FSMO Roles in Active Directory.
In most cases an administrator can keep the FSMO role holders (all 5 of them) in the same spot (or actually, on the same DC) as has been configured [...]

Windows 2000/2003 Multi-Master Model
A multi-master enabled database, such as the Active Directory, provides the flexibility of allowing changes to occur at any DC in the enterprise, but it also introduces the possibility of conflicts that can potentially lead to problems once the data is replicated to the rest of the enterprise. One way Windows 2000/2003 [...]

Have you seen the Microsoft Active Directory 70-640 Training video by Train Signal? I highly recommend this course, as you will learn much more than you will from any book. It includes new iPod/MP3 versions of the course (when you are on the go) and Transcender practice tests to help you prepare for certification. The [...]

OS: Microsoft Windows 7 Original
Type of File: WinRaR
Size: 2.14 GB AFTER EXTRACTING!
How to Install:
1. Extract the rar archive….
2. Burn on a DVD
3. Now Boot and Install Just like Vista
Minimum recommended specs call for:
1. 1 GHz 32-bit or 64-bit processor
2. 1 GB of system memory
3. 16 GB of available disk space
4. Support for DirectX 9 graphics [...]

1. Install and logon Vista final (worked with the BillGates edition) with the CDkey given by BillGates.
2. Browse to WindowsSystem32Licensingpkeyconfig’ folder,
right-click ‘pkeyconfig.xrm-ms’
Open property, click Security > Advanced > Owner > Edit > Administrators.
Click OK and close the propertes.
Then re-open properties of the file, Click Security > Advanced > Edit > select Administrators and click Edit.
Click [...]

So far, Windows 7 is getting much attention and rave reviews in its Beta version. The improvements from Windows Vista to Windows 7 are exciting and has new features like DirectAccess and JumpLists.
Some of the features require Windows Server 2008, so if you are still using Windows Server 2003 you should start to look at [...]