What protocol is used with L2TP to provide encryption?

A.
IPSec

B.
MPPE

C.
HTTPS

D.
MSC-CHAP

Explanation:
Section Reference: Understanding VPNs
Layer 2 Tunneling Protocol (L2TP) is quickly gaining popularity due to the inclusion of IPsec as its security
protocol. Although this is a separate protocol and L2TP doesnt have any inherent security, L2TP is considered
the more secure solution because IPsec is required in most L2TP implementations.