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What is Form based Authentication and Claim based Authentication in SharePoint? and how to use both type of authentication give the example of each?
In SharePoint2013, Claims-based authentication is more general authentication mechanism that allows users to authenticate on external systems that provide asking system with claims about user.
Claim based authentication mode supports the foll:-
1. Windows authentication
2. Forms based authentication.
You have to create your site in claim based authentication mode in order to be able to to use Forms based authentication mode.
In SharePoint2013 by default web app is created as Claims based authentication mode (then you can choose windows/forms based).
Classic authentication model is deprecated in SharePoint2013, but you can still create it in PowerShell. But in this mode you can only use Windows based authentication and not Forms based authentication.
