单项选择题 视频业务端到端质量分析落地手册中（）KQI指标为可选。
单项选择题 Onaciscoaironet1130seriesautonomousaccesspoint，thestatusindicatorisblinkingdarkblue.Whatdoesthisindicate？（）
单项选择题 WhenplanningforvoicedeploymentswiththeCiscoUnifiedWirelessIPPhone7921GhandsetinamultifloorbuildingwithaWLANthatoperatesatan11MB/sdatarate，howmanydecibelsreferencedto1milliwattofsame-channelseparationarerecommendedbetweenfloors？（）A.13dBmB.19dBmC.25dBmD.31dBm