Multiple choice general knowledge science & technology PPTP ??? Point to Point Transmission Protocol Point to Point Transfer Protocol Point to Point Tunneling Protocol Point to Point Traffic Protocol Reveal answer Fill a bubble to check yourself C Correct answer Explanation PPTP stands for Point-to-Point Tunneling Protocol. It is a network protocol used to implement VPN tunnels between public networks. It was developed by a consortium including Microsoft and is one of the oldest VPN protocols.