Which of the following protocols is used with a tunneling protocol to provide security?

A.
FTP

B.
IPX/SPX

C.
IPSec

D.
EAP

Explanation:
Internet Protocol Security (IPSec) is used with Layer 2 Tunneling Protocol (L2TP). It is a standardbased protocol that provides the highest level of virtual private network (VPN) security. IPSec can
encrypt virtually everything above the networking layer. It secures both data and password.