aaa架構中哪個是要求用戶輸入用戶名和密碼？

什么問題導致SERVER VTP密碼跟替他交換機VTP密碼不匹配？

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

QoS Mechanisms：問在部署QoS中要用的3個mechanisms是什么？

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？（）

DHCP SERVER在給一個網段設置POOL時，該網段路由器接口地址能不能放入POOL，能why，不能why。

what is four ospf area type？

What is the three main step of using the QoS feature with MQC command line interface？

what is the disadvantage of policing？

Local Preference？