英语翻译1．How does replacing a hub with a switch affect CSMA/CD behavior in an Ethernet network?A.It effectively eliminates collisions.B.In increases the size of the collision domain by allowing more devices to be connected at once.C.It decreas

Question

英语翻译
1．How does replacing a hub with a switch affect CSMA/CD behavior in an Ethernet network?
A.It effectively eliminates collisions.
B.In increases the size of the collision domain by allowing more devices to be connected at once.
C.It decreases the amount of time that a jam signal must be sent to reach all network devices.
D.It reduces the total amount of bandwidth available to each device.
E.It eliminates Layer 3 broadcast traffic.
ANSWER:A

Answer 1

用交换机代替集线器,会对一个CSMA/CD网络有什么影响
A 有效的减少了冲突
B 由于可以让更多的设备加入,增大了冲突域
C 减少了阻塞信号到达所有设备的时间
D 减少了所有设备总计的贷款
E 消除了3层广播流量
A是对的,hub相当于一个总线型网络,而交换机基于MAC地址进行转发
B 错误,首先不一定会增加设备苏,而且,交换机是一个分割冲突域的设备.
C 因为把冲突域分开了,所以也没有jam信号,就算有,也不会减少时间
D总带宽是不变的
E 三层广播要用路由器来分割