It includes VPN specific protocols used to manage tunnels and encapsulate private data, including PPTP and L2TP along with IPsec.

It includes VPN specific protocols used to manage tunnels and encapsulate private data, including PPTP and L2TP along with IPsec.

• A. VPN Client
• B. VPN Protocol
• C. NAS
• D. Tunnel terminating device (VPN server)

Answer: (B)

VPN Protocols are the standards that define how tunnels are established and how data is encapsulated and secured as it moves across an untrusted network. PPTP and L2TP are tunneling protocols, and IPsec is used to protect the data by providing encryption and authentication. PPTP handles creating the tunnel and the control channel to set up the connection; L2TP provides the framework for tunneling, and IPsec adds strong security by encrypting the traffic inside the tunnel. The focus here is on the mechanisms that enable VPNs—the protocols used to manage tunnels and encapsulate private data. A VPN client is just the endpoint that initiates a connection, a NAS is a storage device, and a tunnel terminating device (VPN server) is where the tunnel ends; none of these define how the tunneling and encapsulation themselves are performed.

VPN Protocols are the standards that define how tunnels are established and how data is encapsulated and secured as it moves across an untrusted network. PPTP and L2TP are tunneling protocols, and IPsec is used to protect the data by providing encryption and authentication. PPTP handles creating the tunnel and the control channel to set up the connection; L2TP provides the framework for tunneling, and IPsec adds strong security by encrypting the traffic inside the tunnel. The focus here is on the mechanisms that enable VPNs—the protocols used to manage tunnels and encapsulate private data. A VPN client is just the endpoint that initiates a connection, a NAS is a storage device, and a tunnel terminating device (VPN server) is where the tunnel ends; none of these define how the tunneling and encapsulation themselves are performed.