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SPT初始狀態(tài)之后的一個(gè)狀態(tài)是什么？
The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem?（）
什么是NAT？
Refer to the exhibit.How many broadcast domains exist in theexhibited topology？（）
aaa架構(gòu)中哪個(gè)是要求用戶輸入用戶名和密碼？
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?（）
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）？
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?（）
Local Preference？
what is four ospf area type？