問一個怎么樣的屬性，能讓路由不通告給任何的peer？

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

What is method list for configure aaa？

什么是NAT？

如何實現(xiàn)擁塞避免？

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

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

The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.00.0.0.255 any What is the effect of this access list configuration?（）

兩ebgp鄰居發(fā)路由過來 ，哪些屬性重置？

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?（）