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what is the advantage of policing opposite to shaping？
Which of the following describes the roles of devices in a WAN?（）
Refer to the exhibit.Which statement describes DLCI 17?（）
When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）
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：?jiǎn)栐诓渴餛oS中要用的3個(gè)mechanisms是什么？
SPT初始狀態(tài)之后的一個(gè)狀態(tài)是什么？
當(dāng)將多個(gè)交換機(jī)加入到MST region當(dāng)中會(huì)發(fā)生什么（what happen）？
一堆交換機(jī)一個(gè)server、一個(gè)transpare，問(wèn)配置prune在哪里配置？