Explain the various modes for the Session state in ASP.NET?

Answer

There are various modes for storing session state:

• InProc: The session state is stored in the memory on the web server. This is the default mode.
• Custom mode: you can specify a custom storage provider.
• Off mode: disables the session state.
• OutProc: There are two ways to handle this mode:
• StateServer: The session state is stored in a separate process known as ASP.net state service. The session state is retained even if the application server is restarted and is available to multiple Web servers.
• SQLServer: Session state is stored in a database, thereby preserving the session state even if the Web application is restarted. Session state can be accessed by multiple Web servers in a Web farm.