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hsrp speak狀態(tài)是什么意思？
QoS Mechanisms：?jiǎn)栐诓渴餛oS中要用的3個(gè)mechanisms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）？
Which of the following are key characteristics of PPP?（）
什么是NAT？
QoS機(jī)制中的分類，采用ip數(shù)據(jù)包中的哪個(gè)字段？
How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2.The routers cannot establish an adjacency relationship on their common Ethernet link.The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2.Based on the information in the graphic,what is the cause of this problem?（）
A default Frame Relay WAN is classified as what type of physical network?（）
Which of the following describes the roles of devices in a WAN?（）