Microsoft Certified Professional Developer/Exam 70-528/Web-Based Client Development/Use authorization to establish the rights of an authenticated user

Manage roles in the Web Site Administration Tool.

• MSDN2 - Web Site Administration Tool Security Tab
• How To: Use Role Manager in ASP.NET 2.0

Ascertain whether a specific user is in role.

• MSDN2 - Understanding Role Management

Get the roles for a specific user by using the Roles object or the User object.

• MSDN2 - Understanding Role Management

Store role information in a cookie.

• MSDN2 - Roles.CacheRolesInCookie Property

Restrict access to files by using file authorization.

• MSDN2 - ASP.NET Authorization
• ASPNET2 Security FAQ0045

Restrict access to portions of an application by using URL authorization.

• MSDN2 - ASP.NET Authorization