多项选择题
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.
WhichthreeoftheseareelementsoftheCiscoUnifiedWirelessNe...
多项选择题Which three of these are elements of the Cisco Unified Wireless Network architecture？（）
A.cell phones B.remote access C.mobility services D.network management E.network unification F.network decentralization
WhichoftheseisaLayer2transportarchitecturethatprovidesp...
单项选择题Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual （counter-rotating） ring topology？（）
A.DTP B.RPR C.SDH D.CWDM E.DWDM
WhichoftheseLayer2accessdesignsdoesnotsupportVLANextens...
单项选择题Which of these Layer 2 access designs does not support VLAN extensions？（）
A.FlexLinks B.loop-free U C.looped square D.looped triangle E.loop-free inverted U
