The Web applications used to isolate content, processes, features, and users

• The Web applications can separate content that is accessible by anonymous users from content that is accessed by authenticated users, or content that is accessible by employees, by hosting the content in separate Web applications.
• Each Web application has a unique domain name, which helps to prevent cross-site scripting attacks.
• Can assign a unique application pool to a Web application, which isolates its processes.
• When you create a new Web application, you also create a new content database that defines the authentication method used by the application pool to connect to the database.
• When you create a new Web application, you specify the authentication method used to connect to the IIS Web site.
• Policy can be specified uniquely for each Web application.