what are two types of remote access servers?
Microsoft operating systems include remote access clients and remote access servers that support both dial-up and virtual private network connections. Microsoft operating systems include a rich set of remote access and security features that provide flexibility and security for your remote access solution.
The best example of virtual private networking is that of a VPN client who makes a VPN connection to a remote access server that is connected to the Internet. The remote access server answers the virtual call, authenticates the caller, and transfers data between the VPN client and the corporate network.
The best example of dial-up networking is that of a dial-up networking client that dials the phone number of one of the ports of a remote access server. Dial-up networking over an analog phone or ISDN is a direct physical connection between the dial-up networking client and the dial-up networking server.