EXERCISE 11.1 UPGRADING A DEVICE DRIVER . . . . 399EXERCISE 11.1 UPGRA...

26. E. Wi-Fi Protected Access 2 (WPA 2.0) requires CCMP/AES. TKIP/RC4 is optional. WEP/

RC4 is legacy and should not be used. It cannot be used with a robust secure network. RC5

is a stream cipher and not used with IEEE 802.11 wireless LANs. CCMP uses AES, not

RC4. For more information, see Chapter 1.