多项选择题
Which two pairings match the application with the correct Cos value？（）
A.CoS 0 = Best-Effort Data B.CoS 1 = Best-Effort Data C.CoS 3 = High Priority D.CoS 4 = High Priority Data E.CoS 5 = Voice Bearer F.CoS 7 = Voice Bearer
多项选择题 Whichtwooptionscanbeusedastrafficdescriptorswhenclassifyingandmarkingtraffic？（）
单项选择题 What will the H.323 gateways do when they receive a call request?（）
多项选择题 WhichtwostatementsabouttheimplementationofWLANQoSaretrue？（）
