Your network contains a single Active Directory forest.
You plan to deploy System Center 2012 Configuration Manager. The hierarchy will have a
Central Administration site and two primary sites.
You need to ensure that you can target user groups for application deployment. The
solution must minimize network traffic.
Which Configuration Manager discovery methods should you use?

A.
Active Directory User Discovery on every site

B.
Active Directory User Discovery and Active Directory Group Discovery on the primary
sites

C.
Active Directory User Discovery and Active Directory Group Discovery on the Central
Administration site

D.
Active Directory User Discovery on the primary sites and Active Directory Group
Discovery on the Central Administration site

Explanation:
When you minimize the number of sites that run discovery you can reduce the overall
network bandwidth that is being used by discovery, and reduce the overall number of DDRs
that are created and must be processed by your site servers.
Note:
* Active Directory User Discovery
Discovers user accounts from the specified locations in Active Directory Domain Services.
* Active Directory Group Discovery
Discovers local, global, and universal security groups, the membership within these groups,
and the membership within distribution groups from the specified locations in Active directory
Domain Services. Distribution groups are not discovered as group resources.