【求助】复习中出现的问题

zyr6688 · 发表于 2006-10-22 22:05:42

帮忙分析一下这道题.先谢谢了.!Why would an daministrator change the value of the spanning-tree priority of a switch?管理员为何要修改交换机的生成树优先级.----我也知道是为了选举根桥可是...A . in order to optimize the path that frames take from source to destinationB . to increase the priority so a designated port will become a root port C . to increase the BID.so the switch is more likely to become root bridge .D . in order to allow VLANs to be sent from one switch to another across a single link E . to force a given switch to become an STP server.答案是A.

丢丢 · 发表于 2006-10-23 15:26:43

大家复习时切勿过于急噪，要抓住根本哦！

头点什么 · 发表于 2006-10-22 22:21:38

为了优化帧从源到目的经过的路径，选举根桥的目的就是选定生成树的路径``

zyr6688 · 发表于 2006-10-22 23:20:02

哦.对啊.忘了最根本的了.谢谢啊.

chinamoon · 发表于 2006-10-23 01:36:56

<div class="quote">以下是引用头点什么在2006-10-22 22:21:38的发言： 为了优化帧从源到目的经过的路径，选举根桥的目的就是选定生成树的路径``</div>专家。赞一个。

zyr6688 · 发表于 2006-10-23 20:46:14

1.which of the following is true concerning Frame Relay multipoint subinterfaces?A . An ip address is required on the physical interface of the central router.B . All routers are required to be fully meshed.C . All routers must be in the same subnet to forward routing updates and broadcasts.D . Multipoint is the default configuration for Frame Relay subinterfaces.答案是:C2 .Which statements describe the routing protocol OSPF ?(Choose three.)A . It supports VLSM.B . It is used to route between autonomous systems.C . It confines network instability to one area of the network.D . It increases routing ouerhead on the network.E . It allows extensive control of routing updates.答案是:ACE谁能帮我解释一下这道题的意思.最好多分析一些内容.谢谢先!

头点什么 · 发表于 2006-10-23 23:30:39

C . All routers must be in the same subnet to forward routing updates and broadcasts.所有路由器只能通过相同子网转发广播包和路由更新包，避免了水平分割的问题```第二题A、C没有悬念，书上的原话.E的意思是：允许对路由更新进行广泛的控制，比如OSPF区域汇总```

Harrison · 发表于 2006-10-23 23:55:41

总是头点快，么意思么悬念，不玩了……

好 · 发表于 2006-10-24 11:55:44

貌似头点无所不知~

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