What are the changes to DFS Namespaces available with Windows Server 2008 Release 2?

Mark works as a Network Administrator for NetTech Inc. The company has a Windows 2008 domainbased network. Mark has recently installed Windows Server 2008 R2 on a computer. He wants to
implement Distributed File system on the network using Windows Server 2008 R2. What are the
changes to DFS Namespaces available with Windows Server 2008 Release 2?
Each correct answer represents a complete solution. Choose three.

A.
Performance improvements for large namespaces

B.
Performance counters

C.
DFS management support for enabling access-based enumeration

D.
Failover cluster support

Explanation:
The following changes to DFS Namespaces are available in Windows Server 2008 R2:
DFS Management support for enabling access-based enumeration
Performance counters
Performance improvements for large namespaces
DFS Management support to selectively enable namespace root referrals
Improved Dfsdiag.exe command prompt Help text

D is incorrect. The failover cluster support change is available to DFS replication.