whats new in windows server 2012 active directory

https://redmondmag.com/articles/2012/07/01/whats-new-in-windows-server-2012-active-directory.aspx

 

from the article: 

 

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.

compare and contrast two (2) improved features of Windows Server 2012 Active Directory to the previous version of each feature. Examine your chosen features 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.