NA V104.4题库第435题

qqrrrrrr007 · 发表于 2011-7-2 10:45:50

本帖最后由 qqrrrrrr007 于 2011-7-4 09:42 编辑

我觉得选ADE 有没有同学做过的？求解 QQ截图未命名.png

这道题中2层SW ,VLAN可以达到E的效果，F的说法在2层SW中，它的VLAN 可以基于三层转发么？这有问题啊

fulltimes · 发表于 2011-7-2 11:34:27

楼主你最好上个图

E选项中广播域是3层得概念，题目要求对二层的描述

公子Achilles · 发表于 2011-7-2 19:22:18

那么layer 2 switches来做转发决定又怎么会看layer 3的信息哪？ layer 2 switches根本不知道layer 3的信息啊

ccna_candidate · 发表于 2012-2-13 10:39:07

Which three statements accurately describe layer 2 Ethernet switches?(choose three)
A. Microsegmentation decreases the number of collisions on the network.
B. if a switch receives a frame for an unkown destination,it uses ARP to resolve the address.
C. Spanning Tree Protocol allows switches to automatically share vlan information.
D. In a properly functioning network with redundant switched paths,each swiched aegment will contain one
root bridge with all its ports in the forwarding state.All other switches in that broadcast domain will have
only one root port.
E. Establishing vlans increases the number of broadcast domains.
F. Switches that are configured with vlans make forwarding decisions based on both layer 2 and layer 3
address information.
Answer: ADE

layer 2 Ethernet switches是说2950这些交换机并没有把讨论限制在2层
L2 SWITCH 2950不能ip routing F应该是错的

anylyth · 发表于 2012-2-17 11:27:03

同意F。。 VLAN已经是一个广播域了，转发vlan信息，就必须要第三层设备的参加吧..

jinbery · 发表于 2012-2-17 10:15:00

本帖最后由 jinbery 于 2012-2-17 10:18 编辑

ccna_candidate 发表于 2012-2-13 10:39
Which three statements accurately describe layer 2 Ethernet switches?(choose three)
A. Microsegment ...

个人意见

同意选E，
不同意选F

1，题目指定2层交换机
2，2层交换机，没有能力处理IP信息
3，2层交换机，处理Vlan的方式是利用Vlan tag，实现转发

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[已解决] NA V104.4题库第435题

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