Final answer:
L2TP (Layer 2 Tunneling Protocol) typically employs IPsec as its data encryption mechanism, ensuring secure transmission of data over the internet.
Step-by-step explanation:
L2TP (Layer 2 Tunneling Protocol) typically employs IPsec as its data encryption mechanism. L2TP is a popular VPN protocol that is used to create virtual private networks. It combines the best features of PPTP and L2F protocols. By using IPsec for encryption, L2TP ensures secure transmission of data over the internet.