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[单选题]
万兆位以太网所有数据的传输方式是( )
A
单工b.双工c.半双工d.全双工
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试题答案:
D
答案解释:
【解析】万兆以太网不再支持半双工数据传输,所有数据传输都以全双工方式进行,这不仅极大地扩展了网络的覆盖区域(交换网络的传输距离只受光纤所能到达距离的限制),而且使标准得以大大简化。
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