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A default Frame Relay WAN is classified as what type of physical network?（）
As a CCNA candidate,you must have a firm understanding of the IPv6 address structure.Refer to IPv6 address,could you tell me how many bits are included in each filed?（）
一堆交換機(jī)一個(gè)server、一個(gè)transpare，問配置prune在哪里配置？
Refer to the exhibit.Which statement describes DLCI 17?（）
Refer to the exhibit.What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown？（）
When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）
What is method list for configure aaa？
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?（）
what is the disadvantage of policing？
QoS Mechanisms：?jiǎn)栐诓渴餛oS中要用的3個(gè)mechanisms是什么？