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多选题
Which two statements are true about the Wi-Fi Protected Access （WPA） and Wi-Fi Protected Access version 2 （WPA2） security solutions？（）
A
both WPA and WPA2 require authentication support via IEEE 802.1 x and Pre-Shared Key （PSK）
B
both WPA and WPA2 address all known Wired Equivalent Privacy （WEP） vulnerabilities in the IEEE 802.11i security implementation
C
WPA is supported on client devices only. WPA2 is supported on both access point （AP） and client devices
D
WPA provides only a standard for authentication. WPA2 provides a standard for authentication and encryption
E
WPA requires encryption support via Temporal Key Integrity Protocol （TKIP） WPA2 provides encryption support via （symmetric block cipher）AES-CCMP
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