Which of the following is not a WPA component?
a. TKIP
b. AES
c. CCMP
d. LEAP
d. LEAP
Explanation: Cisco Systems uses an 802.1x authentication system called LEAP. In Cisco LEAP, the user must enter a password to access the network. TKIP basically generates a sequence of WEP keys based on a master preshared key and rekeys periodically every 10,000 packets. TKIP also uses an integrity check value to ensure that the packet is not tampered with. WPA2 is an improved version of WPA. It uses AES (Advance Encryption Standard) as its encryption algorithm and CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) as its key management.
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