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what is the advantage of policing opposite to shaping？
four switches， which one will be root switch.（no pic）.
What is method list for configure aaa？
When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）
aaa架構(gòu)中哪個是要求用戶輸入用戶名和密碼？
The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem?（）
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?（）
what is four ospf area type？
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)將多個交換機加入到MST region當(dāng)中會發(fā)生什么（what happen）？