C# and .NET interview questions: - Explain windows, forms and passport authentication?

There are 3 major ways of doing authentication and authorization:

• Windows: - In this mode the users are stored in windows local user groups.

• Forms: - In this mode we create a login screen and use the formsauthentication
class to do validations. It’s a ticket based authentication.

• Passport :-In this mode the users are validated from Microsoft sites like
hotmail , devhood , MSN etc , ticket is generated and that ticket can be used to
do authentication and authorization in your web application.

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