The correct answer would be Windows.
Answer:
Users can connect to a remote access server through a dial-up connection or a virtual private network (VPN) connection.
Explanation:
A dial-up connection requires both the server and the client computer to have a correctly configured modem. The client and the server connect over analog public telephone networks. To enhance the security of a dial-up connection, use data encryption, Windows logon and domain security, remote access policies and callback security.
