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QoS機制中的分類，采用ip數(shù)據(jù)包中的哪個字段？
Which of the following describes the roles of devices in a WAN?（）
A default Frame Relay WAN is classified as what type of physical network?（）
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2.The routers cannot establish an adjacency relationship on their common Ethernet link.The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2.Based on the information in the graphic,what is the cause of this problem?（）
問一個怎么樣的屬性，能讓路由不通告給任何的peer？
What is method list for configure aaa？
What is the next state of initial in spanning-tree protocol？
The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem?（）
what is the advantage of policing opposite to shaping？
Refer to the exhibit.How many broadcast domains exist in theexhibited topology？（）