A.Delay should be no more than 10 ms. B.Loss should be no more than1 percent. C.Jitter should be less then 40 ms. D.Managed bandwidth is strongly recommended for voice control traffic.
多项选择题WhichthreeoftheseareelementsoftheCiscoUnifiedWirelessNetworkarchitecture？（）
A.cell phones B.remote access C.mobility services D.network management E.network unification F.network decentralization
单项选择题WhichoftheseisaLayer2transportarchitecturethatprovidespacket-basedtransmissionoptimizedfordatabasedonadual（counter-rotating）ringtopology？（）
A.DTP B.RPR C.SDH D.CWDM E.DWDM
单项选择题WhichoftheseLayer2accessdesignsdoesnotsupportVLANextensions？（）
A.FlexLinks B.loop-free U C.looped square D.looped triangle E.loop-free inverted U
单项选择题For acceptable voice calls, the packet error rate should be less than（）%
A.0.01 B.0.1 C.1 D.2.5
多项选择题What are three primary activities in the cycle of building an enterprise security strategy?（）
A. activity audit B. administration C. policy establishment D. technology implementation
