Which four types of VPN natively provide encryption of user traffic? (Choose four.)
The four types of VPN that natively provide encryption of user traffic are:
IPsec: IPsec (Internet Protocol Security) is a protocol suite that provides secure communication over the internet. It encrypts data packets at the IP level, providing confidentiality, integrity, and authentication of user traffic. IPsec is widely used for site-to-site VPNs and remote access VPNs.
L2TPv3: L2TPv3 (Layer 2 Tunneling Protocol Version 3) is a protocol that provides a way to transport Layer 2 (L2) packets over an IP network. It provides encryption of user traffic by encapsulating L2 packets in IP packets, which are then encrypted using IPsec.
SSL: SSL (Secure Sockets Layer) is a protocol that provides encryption of user traffic between web servers and clients. It encrypts data using public-key cryptography, ensuring confidentiality and integrity of user traffic.
GETVPN: GETVPN (Group Encrypted Transport VPN) is a protocol that provides encryption of user traffic for multicast and unicast traffic flows. It uses a group key to encrypt and decrypt user traffic, providing confidentiality and integrity of user traffic.
MPLS, VPLS, AToM, and Microsoft PPTP are not VPN protocols that natively provide encryption of user traffic. MPLS provides traffic engineering and path isolation, while VPLS and AToM provide Layer 2 connectivity between geographically dispersed sites. Microsoft PPTP provides encryption of user traffic, but it is not considered a secure VPN protocol due to vulnerabilities in its implementation.