問一個怎么樣的屬性，能讓路由不通告給任何的peer？

什么是NAT？

一堆交換機一個server、一個transpare，問配置prune在哪里配置？

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

兩ebgp鄰居發(fā)路由過來 ，哪些屬性重置？

What is the next state of initial in spanning-tree protocol？

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?（）

what is the advantage of policing opposite to shaping？

As a CCNA candidate,you must have a firm understanding of the IPv6 address structure.Refer to IPv6 address,could you tell me how many bits are included in each filed?（）