The LWAPP （Lightweight Access Point Protocol） is in use within the Company wireless LAN. Which statement is true about this protocol？（）
A. Real-time frame exchange is accomplished within the access point.
B. The control traffic between the client and the access point is encapsulated with the LWAP
C. Authentication， security， and mobility are handled by the access point.
Data traffic between the client and the access point is encapsulated with LWAP
E. None of the other alternatives apply
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什么是“无毒社区”？（）
A. 没有吸毒、没有贩毒、没有种植原植物和没有制造毒品的社区
B. 没有一切毒品的社区
C. 没有吸毒人员的社区
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