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Lesson 8

Active Directory Physical Structure Conclusion

The main points of this module include the following:
The physical structure of Active Directory is defined by sites and the placement of domain controllers.
Domain controllers fall into three categories: domain controllers, global catalog servers, and operations masters.
There are five operations masters: the PDC emulator, the schema master, the RID master, the domain naming master, and the infrastructure master. A global catalog server is a repository of information containing a subset of attributes for all Active Directory objects used to locate objects within the directory.

New terms

This module introduced you to the following terms:
  1. Active Directory: The Windows 2000 Directory Service which is a database that contains information about all the objects in a Windows 2000 Domain. Objects include: 1) Users, 2) Computers, 3) Group, 4) Printers and other objects on the network. The Active Directory is a hierarchical database, which is in contrast to the Windows NT 4.0 Flat database structure.
  2. Domain: The basic administrative unit in a Windows 2000 network.
  3. Global server catalog: A Windows 2000 computer that holds a copy of the global catalog for the forest.
  4. Global server catalog: A Windows 2000 computer that holds a copy of the global catalog for the forest.
  5. Multi-master replication: Multi-master (or multimaster) replication is a replication model in which any domain controller accepts and replicates changes to any other domain controller. This is different from replication in Windows NT, where one computer stored a single modifiable copy of the directory and other computers stored backup copies.
  6. Subnets
You are now ready to apply some of what you have learned about the physical aspects of Active Directory by creating sites, subnets, and the global catalog server.

Active Directory Logon - Quiz

Click the Quiz link below to check your knowledge of the physical structure of Active Directory.
Active Directory Logon- Quiz