单项选择题
What is the purpose of the STP PortFast BPDU guard feature？（）
A.enforce the placement of the root bridge in the network
B.ensure that a port is transitioned to a forwarding state quickly if a BPDU is received
C.enforce the borders of an STP domain
D.ensure that any BPDUs received are forwarded into the STP domain
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相关考题
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问答题
WhichpictureisTrafficShape，why？ -
单项选择题
IfaportconfiguredwithSTPloopguardstopsreceivingBPDUs，theportwillbeputintowhichstate？（）
A.learning state
B.listening state
C.forwarding state
D.root-inconsistent state -
多项选择题
WhichtwooftheseareusedintheselectionofarootbridgeinanetworkutilizingSpanningTreeProtocolIEEE802.1D？（）
A.Designated Root Cost
B.bridge ID priority
C.max age
D.bridge ID MAC address
E.Designated Root Priority
F.forward delay
