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hsrp speak狀態(tài)是什么意思？
what is the advantage of policing opposite to shaping？
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(gè)是要求用戶(hù)輸入用戶(hù)名和密碼？
Refer to the exhibit.How many broadcast domains exist in theexhibited topology？（）
Which of the following describes the roles of devices in a WAN?（）
four switches， which one will be root switch.（no pic）.
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?（）
What is the three main step of using the QoS feature with MQC command line interface？
How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）