A.Apublicplacewhereguestsarefreetoaccessthewirelessnetwork.
B.Asmallofficewhereadefinednumberofspecificwirelessdevicesareused.
C.Ameetingroomwherevariouscompanyuserswillaccessthewirelessnetworkduringmeetings.
D.AnofficewheresomeusersareunabletouseWPAencryptionduetoolderwirelesscardssotheyuseMACfiltering.
参考答案：B
