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What is the next state of initial in spanning-tree protocol？
Refer to the exhibit.How many broadcast domains exist in theexhibited topology？（）
什么是NAT？
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？（）
Refer to the exhibit.Which statement describes DLCI 17?（）
what is the advantage of policing opposite to shaping？
當(dāng)將多個(gè)交換機(jī)加入到MST region當(dāng)中會(huì)發(fā)生什么（what happen）？
Which of the following are key characteristics of PPP?（）
Which of the following describes the roles of devices in a WAN?（）
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?（）