问答题
Which picture is Traffic Shape， why ？
Policing typically drops excess traffic.......
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单项选择题 IfaportconfiguredwithSTPloopguardstopsreceivingBPDUs，theportwillbeputintowhichstate？（）
多项选择题 WhichtwooftheseareusedintheselectionofarootbridgeinanetworkutilizingSpanningTreeProtocolIEEE802.1D？（）
单项选择题 SpanningTreeProtocolIEEE802.1sdefinestheabilitytodeploywhichofthese？（）
