What is authentication in asp.net 2.0?

hi,
here is answer  for your query
http://www.exforsys.com/tutorials/asp.net-2.0/forms-authentication-in-asp.net-2.0.html
http://msdn.microsoft.com/en-us/library/aa480476.aspx

Authentication is the process that determines the identity of a user. After a user has been authenticated, a developer can determine if the identified user has authorization to proceed. It is impossible to give an entity authorization if no authentication process has been applied. You should never authorize access to resources you mean to be secure if you have not applied an authentication process to the requests for the resources.

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