hsrp speak狀態(tài)是什么意思？

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

SPT初始狀態(tài)之后的一個狀態(tài)是什么？

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?（）

什么是NAT？

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

what is the disadvantage of policing？

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?（）

What is method list for configure aaa？

four switches， which one will be root switch.（no pic）.