Refer to the exhibit.Which statement describes DLCI 17?（）

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

hsrp speak狀態(tài)是什么意思？

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

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 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?（）

R1 will choose which path to reach 10.1.0.0？

Refer to the exhibit.The network administrator is in acampus building distant from Building B.WANRouter is hosting a newly installed WAN link on interface S0/0.The new link is not functioning and the administrator needs to determine if the correct cable has been attached to the S0/0 interface.How can the administrator accurately verify the correct cable type on S0/0 in the most efficient manner?（）