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QoS機制中的分類，采用ip數(shù)據(jù)包中的哪個字段？
aaa架構中哪個是要求用戶輸入用戶名和密碼？
How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）
what is the disadvantage of policing？
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?（）
four switches， which one will be root switch.（no pic）.
what is the advantage of policing opposite to shaping？
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?（）
R1 will choose which path to reach 10.1.0.0？
What field in IP packet is used for classification by QOS？