What field in IP packet is used for classification by QOS？

What is method list for configure aaa？

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?（）

當(dāng)將多個交換機(jī)加入到MST region當(dāng)中會發(fā)生什么（what happen）？

aaa架構(gòu)中哪個是要求用戶輸入用戶名和密碼？

what is four ospf area type？

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?（）

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？（）

what is the advantage of policing opposite to shaping？