单项选择题
A.Guaranteed PHB
B.Class-Selector PHB
C.Reserved Forwarding PHB
D.Discard Eligible PHB
E.Priority PHB
多项选择题 Whichtwoofthesearedifferencesbetweentrafficpolicingandtrafficshaping？（）
单项选择题 Youaredesigningyournetworktobeabletousetrunks.AspartofthisprocessyouarecomparingtheISLand802.1Qencapsulationoptions.Allofthesestatementsaboutthetwoencapsulationoptionsarecorrectexceptwhichone？（）
单项选择题 Refer to the exhibit. What is the overall type of queuing being used on the outgoing data for interface Ethernet0/1? （）