Your network contains an Active Directory domain named contoso.com. The relevant servers in the domain are
configured as shown in the following table.
You plan to create a shared folder on Server1 named Share1. Share1 must only be accessed by users who are
using computers that are joined to the domain.
You need to identify which servers must be upgraded to support the requirements of Share1. In the table below,
identify which computers require an upgrade and which computers do not require an upgrade. Make only one
selection in each row. Each correct selection is worth one point.
Hot Area:
Answer: 
Explanation:
I am not understanding this. Could someone help me? Should the File Server not be a member of the domain and thus none of them need an upgrade?
Let me rephrase, should the file server be on the domain and not need an upgrade?
Conditional expressions are what is required in this instance, which requires an upgrade to at least Server 2012.
But when Conditional expressions requires server 2012 then the answer is not correct. Because DC3 is server 2008R2?
Prerequisites
Claims-based authorization and auditing requires:
• Windows Server 2012
• At least one Windows Server 2012 domain controller accessible by the Windows client in the user’s domain
• At least one Windows Server 2012 domain controller in each domain when using claims across a forest trust
• Windows 8 client (required when using device claims)
https://social.technet.microsoft.com/wiki/contents/articles/14269.introducing-dynamic-access-control.aspx