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
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相关考题
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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
