单项选择题
A.peer-to-peer
B. hub and spoke
C.partial mesh
D.full mesh
单项选择题 Asanexperiencedtechnician，youareresponsibleforTechnicalSupport.WhichofthefollowingdescriptionsiscorrectaboutthecharacteristicofSLBonearmmode？（）
单项选择题 Asanexperiencedtechnician，youareresponsibleforTechnicalSupport.Acustomercallstoaskthebestsignallevelandnoiselevelforcellphone.Howtorespond？（）
单项选择题 Acompanyisusingamulti-sitecentralizedcallprocessingmodel.WhichfeatureensuresthattheremotesiteIPphoneswillstillhavelimitedfunctionalitygivenaWANoutage？（）