A Security Server has been configured to allow external RDP access using SSL to the internal
Desktops. Users are reporting that they are unable to connect.
Which configuration settings should the administrator verify to diagnose this problem?
A.
that RDP access is enabled on the Security Server
B.
that the remote connection timeout is set to 10
C.
that port 443 is open on the firewall
D.
that port 3389 is disabled on the firewall