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以下说法错误的是:( )
分类: 通信专业业务
发布时间: 2023-11-19 20:48
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以下说法错误的是:( )
A.A、中继器是工作在物理层的设备
B.B、以太网交换机工作在数据链路层
C.C、路由器是工作在网络层的设备
D.D、网桥能隔离网络层广播
正确答案是D
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