CWNP Exam Questions

Which of the following wireless security protocols is defined in IEEE 802.11 pre-RSNA security?

Which of the following wireless security protocols is defined in IEEE 802.11 pre-RSNA security?

A.
TKIP

B.
WEP

C.
EAP

D.
CCMP

Explanation:
Wired Security Privacy (WEP) is the security protocol defined in IEEE 802.11 pre- SNA security. Wired Equivalent Privacy (WEP) is a security protocol for wireless local area networks (WLANs). It has two components, authentication and encryption. It provides security, which is equivalent to wired networks, for wireless networks. WEP encrypts data on a wireless network by using a fixed secret key. WEP incorporates a checksum in each frame to provide protection against the attacks that attempt to reveal the key stream.

Answer options D, C, and A are incorrect. CCMP, EAP, and TKIP are defined under the current 802.11-2007 standard for robust network security (RSN). Fact What is RSN?Hide Robust Security Network (RSN) is an element of 802.11i authentication and encryption algorithms to be used for communications between WAPs and wireless clients. It works as a protocol. It is used for establishing secure communications over an 802.11 wireless network. FactWhat is EAP? Hide Extensible Authentication Protocol (EAP) is an authentication protocol that provides support for a wide range of authentication methods, such as smart cards, certificates, one-time passwords, public keys, etc. It is an extension to Pointto- Point Protocol (PPP), which allows the application of arbitrary authentication mechanisms for the validation of a PPP connection. FactWhat is CCMP? Hide CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) is an IEEE 802.11i encryption protocol created to replace both TKIP, the mandatory protocol in WPA, and WEP, the earlier, insecure protocol. CCMP is a mandatory part of the WPA2 standard, an optional part of the WPA standard, and a required option for Robust Security Network (RSN) Compliant networks. CCMP is also used in the ITU-T home and business networking standard. CCMP, part of the 802.11i standard, uses the Advanced Encryption Standard (AES) algorithm. Unlike in TKIP, key management and message integrity is handled by a single component built around AES using a 128-bit key, a 128-bit block, and 10 rounds of encoding per the FIPS 197 standard. FactWhat is TKIP? Hide TKIP (Temporal Key Integrity Protocol) is an encryption protocol defined in the IEEE 802.11i standard for wireless LANs (WLANs). It is designed to provide more secure encryption than the disreputably weak Wired Equivalent Privacy (WEP). TKIP is the encryption method used in Wi-Fi Protected Access (WPA), which replaced WEP in WLAN products. TKIP is a suite of algorithms to replace WEP without requiring the replacement of legacy WLAN equipment. TKIP uses the original WEP programming but wraps additional code at the beginning and end to encapsulate and modify it. Like WEP, TKIP uses the RC4 stream encryption algorithm as its basis.