Your network is connected to the Internet through a firewall. Remote users connect to Microsoft
Windows SharePoint Services (WSS) located on the internal network by using HTTPS. Users require
access to file servers located on the internal network. You need to ensure that remote users can
connect to the file servers. The solution must not require that any additional TCP ports be opened on
the firewall. What should you do?
A.
Implement a PPTP virtual private network (VPN) solution.
B.
Implement an L2TP virtual private network (VPN) solution.
C.
Implement a Terminal Services Web Access (TS Web Access) solution.
D.
Implement a Secure Socket Tunneling Protocol (SSTP) virtual private network (VPN) solution.
Explanation:
To ensure that the remote users can connect to the file servers securely but without require opening
any additional TCP ports on the firewall, you need to configure a SSTP VPN connection. SSTP VPN
connections are tunneled over SSL using TCP port 443. Since all firewalls and NAT devices have TCP
port 443 open, you will be able to use SSTP from anywhere without opening any additional TCP ports
on the firewall.
Configuring Windows Server 2008 as a Remote Access SSL VPN Server (Part 1) / Why
Introduce a New VPN Protocol
http://www.windowsecurity.com/articles/Configuring-Windows-Server-2008-Remote-Access-SSLVPN-Server-Part1.html