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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 upgrade a domain controller to Windows Server 2016.
Does this meet the goal?
Correct Answer: A
Explanation/Reference:
Explanation:
New installations of AD FS 2016 require the Active Directory 2016 schema (minimum version 85).
Upgrading a domain controller will upgrade the schema. Note: upgrading the schema is not the same as
upgrading the domain for forest functional level. Upgrading the functional level is not required.