多项选择题

A.Addition or Deletion of PVCB.PVC status （active or in……

Which of the following is reported in the LMI regular status polling？（）

A.Addition or Deletion of PVC
B.PVC status （active or inactive）
C.Link integrity
D.None of the other alternatives apply

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单项选择题WhatistrueregardingCiscoNetworkRegistrarinCablenetworks？（）

A.It provides comprehensive Domain Name system
B.It provides DHCP administrative functionality
C.It provides TFTP server functionality.
D.All of the above are true

单项选择题WhatdoesUDLDstandfor？（）

A.UniDirectional Loop Detection
B.Unspecified Distribution Label Detection
C.Unified Distribution Label Direction
D.UniDirectional Link Detection

单项选择题WhatwillsignificantlydegradeDSLperformance，regardlessofDSLrateorlinelength？（）

A.Microliters installed between a telephone and shared line
B.POTS splitters at the subscriber’s end of the DSL line
C.POTS splitters at the telco CO
D.None of the other alternatives apply

单项选择题ATMcarriesIPandPPPinformationwithATMcells.WhatATMadaptationLayerisusedwhenanATMcellcarriesIPpacketsandPPPframes？（）

A.AAU2
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C.AAL4
D.AAL5

多项选择题WhichtwoofthefollowingaredesignatedfieldsforMACtunnelingprotocol（802.1ah）？（）

A.Service Ethertype
B.ISL
C.PseudoLAN TAG
D.802.1q VLAN TAG
E.Control Word
F.Tunnel Label