Active Directory ( Some Questions and Answer ) ?

        Active Directory
1.    What is Active Directory?
2.    What is a Domain Controller?
3.    What is a Domain?
4.    What is a Server Role?
5.    What is DNS?

 What is Active Directory ? 
 Answer :

•  Active Directory is the Brain of a Windows Server Network.
•  It’s a database that keeps track of a huge amount of stuff and gives us a  centralized way to manage all our network machines, users, and resources.Such as 

•     Users and Groups
•     Services (i.e. Email, etc.)
•     Resources (Printers, Shared Folders, etc. )

What is Domain Controller ?  Answer :

•      A Domain Controller is a Windows Server Machine that runs Active Directory Domain Services.
•    Think of it as the Boss of your network.
•   You may have multiple Domain Controllers that all have copies of the same Active  Directory  database.

What is a Domain?
Answer:

•  A Windows Server domain is a logical group of computers running versions of the Microsoft Windows operating system that share a central directory database.
•  The machines are all named with part of a Domain name like india.local (also called a “suffix”) and are registered in the Active Directory Database so they can be managed.               Big word: “Namespace”
• Users are also part of the “namespace.”
• Example: Your email address is part of a domain namespace:– moin@india.local
• Note: Email-like logins are also called “User Principle Names” when used to log into a Server 2008 network.

What is a Server Role?
Answer:

• A Server Role is a major job that a Server can perform.
• It’s recommended that a Server not have too many Roles Everybody needs a job—even servers!
• A Domain Controller usually has only two Roles:

                             •Active Directory Domain Services

                              •DNS
What is DNS?
Answer:

• DNS is a service provided by a Server that allows you to find other computers in your network.
• DNS allows you to type in a friendly name of a machine instead of its IP Address, allowing your client  to get the IP address from the DNS server and go find  the resource.
• Without DNS, Active Directory will not work.
• It is recommended that you integrate  DNS with Active Directory to make your IT life easier.  

Hope These will help to understand Active directory who are new to Active Directory.
Enjoy Active Directory.