RC4 is a strong encryption protocol that is generally used with which of the following?

A.
WPA2 CCMP

B.
PEAP

C.
WEP

D.
EAP-TLS

Explanation:
Rivest Cipher 4 (RC4) is a 128-bit stream cipher used WEP and WPA encryption.
Incorrect Answers:
A: Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP) was created
to replace WEP and TKIP/WPA, and is based on the Advanced Encryption Standard (AES) encryption
scheme.B: PEAP (Protected Extensible Authentication Protocol) fully encapsulates EAP and is designed to work
within a TLS (Transport Layer Security) tunnel that may be encrypted but is authenticated.
D: EAP-TLS is the Extensible Authentication Protocol that makes use of Transport Layer Security protocol
for authentication.

Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 62, 366