Recommend two (2) new features of Windows Server 2012 Active Directory that you believe to be most beneficial to users from a network security standpoint. Provide one (1) example for each feature that demonstrates a security problem that could occur if a user does not implement that feature. In addition, compare and contrast two (2) improved features of Windows Server 2012 Active Directory to the previous version of each feature with a focus on the ability of each improved version to increase network efficiency and / or cost effectiveness compared to their previous versions. Provide support for your response.