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一次考试引发的血案---你能得几分？-13435059-51CTO博客
source link: http://blog.51cto.com/13445059/2069236
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1、关于IP地址的描述正确的是（c）A.IP地址空间无限大B.IP地址分为有类地址和无类地址C.IP地址分为网络位和主机位D.IP地址48个Bit2、关于MAC地址描述正确的是（ac）A.全世界唯一，表示一个物理设备B.长度为56bitC.属于OSI的数据链路层D.MAC地址没有任何结构之分3、关于冲突域描述准确的是（d）A.冲突域不会影响信号的传输效率B.CSMA/CD可以隔离冲突域C.集线器不
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