Which two statements best describe the wireless security standard that is defined by WPA?

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问题 Which two statements best describe the wireless security standard that is defined by WPA?

选项 A、It specifies use of a static encryption key that must be changed frequently to enhance security．
B、It requires use of an open authentication method．
C、It specifies the use of dynamic encryption keys that change each time a client establishes a connection．
D、It requires that all access points and wireless devices use the same encryption key．
E、It includes authentication by PSK．

答案C,E

解析

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