Q: Which of these is a mechanism that lets you remotely connect a network or host to an internal private network while passing data over a public channel?
or
Q: Is it possible to join a network or host remotely to an internal private network and transfer data over a public channel using one of these mechanisms?
- IPsec
- L2TP
- VPN
- PGP
Explanation: Virtual Private Networks, or VPNs, are what people usually mean when they talk about the technique you’re talking to. A virtual private network, or VPN, permits safe and encrypted communication across a public network, such as the Internet. This enables individuals or networks located in faraway locations to connect to an internal private network as if they were physically present in the same area. Virtual private networks (VPNs) protect the privacy and integrity of data during its transmission across a public channel by using a variety of protocols and encryption methods.
