212-81 practice question 28 of 30
WPA2 uses AES for wireless data encryption at which of the following encryption levels?
Full set: 206 questionsCorrect Answer:
C. 128 bit and CCMP
Explanation
128 bit and CCMP Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP) is an encryption protocol that forms part of the 802.11i standard for wireless local area networks (WLANs), particularly those using WiMax technology. CCMP employs 128-bit keys and a 48-bit initialization vector that minimizes vulnerability to replay attacks.
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