How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）

DHCP SERVER在給一個(gè)網(wǎng)段設(shè)置POOL時(shí)，該網(wǎng)段路由器接口地址能不能放入POOL，能why，不能why。

如何實(shí)現(xiàn)擁塞避免？

Which of the following describes the roles of devices in a WAN?（）

什么問(wèn)題導(dǎo)致SERVER VTP密碼跟替他交換機(jī)VTP密碼不匹配？

SPT初始狀態(tài)之后的一個(gè)狀態(tài)是什么？

Local Preference？

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）？

aaa架構(gòu)中哪個(gè)是要求用戶輸入用戶名和密碼？

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?（）