What protocol is used with L2TP to encrypt data?

A.
IPSec

B.
MS-CHAP

C.
MS-CHAPv2

D.
MPPE

Explanation:
Section Reference: Defining IPsec
Internet Protocol Security (IPsec) is a protocol within the TCP/IP suite that encrypts and authenticates IP
packets. It is designed to secure any application traffic because it resides on the Network layer (or Internet
layer, as TCP/IP programmers refer to it). This protocol is used with VPNs and is an integral part of IPv6.