SPT初始狀態(tài)之后的一個狀態(tài)是什么？

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?（）

The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem?（） 

Which of the following are key characteristics of PPP?（）

When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）

Refer to the exhibit.How many broadcast domains exist in theexhibited topology？（）

What is method list for configure aaa？

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？（）

當將多個交換機加入到MST region當中會發(fā)生什么（what happen）？

A default Frame Relay WAN is classified as what type of physical network?（）