Your network contains an Active Directory forest. The forest contains a member server named Server1 that runs Windows Server 2008 R2. You configure Server1 as a VPN server.
You need to ensure that only client computers that have up-to-date virus definitions can establish VPN connections to Server1. Which server role, role service, or feature should you install?
A. Simple TCP/IP Services
B. Windows Internal Database
C. Connection Manager Administration Kit (CMAK)
D. File Server Resource Manager (FSRM)
E. Windows Server Update Services (WSUS)
F. Services for Network File System (NFS)
G. Routing and Remote Access service (RRAS)
H. Network Policy Server (NPS)
I. Wireless LAN Service
J. Group Policy Management
K. Health Registration Authority (HRA)
L. Windows System Resource Manager (WSRM)
M. Network Load Balancing (NLB)
