Your company has an Exchange Server 2010 Service Pack (SP1) organization and a hybrid deployment of Office 365.
You
have two federation servers named Server1 and Server2. You manage Server1 and Server2 by using a user account that is a member of the Domain Admins group.
You need to set the authentication method of the federation servers to forms-based authentication.
What should you do?
A. Modify the Web.config file in the %systemroot%\inetpub\adfs\Is directory.
B. Modify the Global.asax file in the %systemroot%\inetpub\adfs\Is directory.
C. From the AD FS 2.0 Management console, add a claims provider trust.
D. From
the AD FS 2.0 Management console, add a relaying party trust.
Explanation:
To configure a non-default local authentication type, navigate to inetpub\adfs\ls located in the root folder, Select web.config and Edit in Notepad. The use Ctrl+F to fi
nd , Cut your preferred local authentication type (the entire line), and Paste it to the top of the list before saving and closing the web.config file.
References: https://blogs.technet.microsoft.com/educloud/2012/10/03/fba-custo
mization-with-office-365-and-adfs/