Components of Microsoft Network Access Protection (NAP)
Below are the components of a Microsoft NAP solution.
Policy server: used to evaluate the health of the requester. It basically communicates with an endpoint agent called the NAP agent to determine the health of that agent. Based on the evaluation of the health of the NAP agent, it is permitted further access. A Windows Server 2008 can be configured or NAP with Network Policy Server (NPS) role service can be installed and configured.