Your network consists of a single Active Directory domain.
All domain controllers run Windows Server 2008 R2.
There are five servers that run Windows Server 2003SP2. The Windows Server 2003 SP2 servers have the
Terminal Server component installed.
A firewall server runs Microsoft Internet Security and Acceleration (ISA) Server 2006.
All client computers run Windows 7.
You plan to give remote users access to the Remote Desktop Services servers.
You need to create a remote access strategy for theRemote Desktop Services servers that meets the following
requirements:
Minimizes the number of open ports on the firewall server.
Encrypts all remote connections to the Remote Desktop Services servers.
Prevents network access to client computers that have Windows Firewall disabled.
What should you do?

A.
Implement port forwarding on the ISA Server. Implement Network Access Quarantine Control on the ISA
Server.

B.
Upgrade a Windows Server 2003 SP2 server to Windows Server 2008 R2. On the Windows Server 2008
R2 server, implement the Remote Desktop Gateway (RDGateway) role service, and implement Network
Access Protection (NAP).

C.
Upgrade a Windows Server 2003 SP2 server to Windows Server 2008 R2. On the Windows Server 2008
R2 server, implement the Remote Desktop Gateway (RDGateway) role service, and configure a Remote
Desktop connection authorization policy (RD CAP).

D.
Upgrade a Windows Server 2003 SP2 server to Windows Server 2008 R2. On the Windows Server 2008
R2 server, implement the Remote Desktop Gateway (RDGateway) role service, and configure a Remote
Desktop resource authorization policy (RD RAP).

Explanation:
REMOTE DESKTOP GATEWAY
Remote Desktop Gateway (RD Gateway) is a role service that enables authorized remote users to connect to
resources on an internal corporate or private network, from any Internet-connected device that can runthe
Remote Desktop Connection (RDC) client. The networkresources can be Remote Desktop Session Host (RD
Session Host) servers, RD Session Host servers running RemoteApp programs, or computers with Remote
Desktop enabled. RD Gateway uses the Remote DesktopProtocol (RDP) over HTTPS to establish a secure,
encrypted connection between remote users on the Internet and the internal network resources on which their
productivity applications run.
NETWORK ACCESS PROTECTION (NAP)
NAP allows network administrators to define specific levels of network access based on a clients identity, the
groups to which the client belongs, and the degree to which the client complies with corporate governance
policy. If a client is not compliant, NAP provides a mechanism for automatically bringing the client into
compliance (a process known as remediation) and then dynamically increasing its level of network access. NAP
is supported by Windows Server 2008 R2, Windows Server 2008, Windows 7, Windows Vista, and Windows
XP SP3.
http://technet.microsoft.com/en-us/library/cc731150
http://technet.microsoft.com/en-us/library/dd125338%28WS.10%29.aspx