Note: In this section, you'll see one or more sets of questions with the same scenario and problem.
Each question presents a unique solution to the problem, and you must determine whether the
solution meets the stated goals. Any of the solutions might solve the problem. It is also possible
that none of the solutions solve the problem.
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Note: This question is part of a series of questions that present the same scenario. Each question
in the series contains a unique solution. Determine whether the solution meets the stated goals.
Your network contains an Active Directory forest named contoso.com. The forest contains a member
server named Server1 that runs Windows Server 2016. All domain controllers run Windows Server 2012
R2. Contoso com has the following configuration:

You plan to deploy an Active Directory Federation Services (AD FS) farm on Server1 and to configure
device registration. You need to configure Active Directory to support the planned deployment.
Solution: You raise the domain functional level to Windows Server 2012 R2.
Does this meet the goal?
Recent Comments (The most recent comments are at the top.)
– AD FS requires Domain controllers running Windows Server 2008 or later.
– At least one Windows Server 2016 domain controller is required for Microsoft Passport for Work.
Domain functional-level requirements
– All user account domains and the domain to which the AD FS servers are joined must be operating at the domain functional level of Windows Server 2003 or higher.
– A Windows Server 2008 domain functional level or higher is required for client certificate authentication if the certificate is explicitly mapped to a user’s account in AD DS.
Schema requirements
– New installations of AD FS 2016 require the Active Directory 2016 schema (minimum version 85).
– Raising the AD FS farm behavior level (FBL) to the 2016 level requires the Active Directory 2016 schema (minimum version 85).
https://docs.microsoft.com/en-us/windows-server/identity/ad-fs/overview/ad-fs-requirements?redirectedfrom=MSDN#BKMK_4