Which VPN protocol works at Layer 3 and can encrypt the entire TCP/IP packet?
A) PPTP
B) L2TP
C) IPsec
D) SSL

Question

Quizplus · Accepted Answer

IPsec is the VPN protocol that works at Layer 3 and can encrypt the entire TCP/IP packet. PPTP and L2TP operate at Layer 2 and do not encrypt the entire packet while SSL operates at Layer 4 and can only encrypt the application layer data. Therefore, IPsec is the best choice for secure and complete packet encryption in a VPN.

Which VPN Protocol Works at Layer 3 and Can Encrypt