多项选择题
A.coverage of large areas
B.individual device configuration
C.roaming that is facilitated bywirelee-location services
D.coverage ofA single area
E.seamless roaming throughout the network
多项选择题 There are many reasons why customers lack sufficient security measures on the network. Which two reasons for insufficient security are typical of the customers today?（）
多项选择题 Which three characteristics are unique to the buying process for A small business compared with the buying process for an enterprise?（）
单项选择题 How do smart business architecture selling tools help partners increase sales?（）