【判断题】【消耗次数：1】
由于光信号传播的速度极快，因此光纤的带宽也比电缆要大的多。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
以下关于光纤特性的描述中，错误的是（）。
①
光纤具有低损耗、宽频带、高数据传输速率、低误码率与安全保密性好的特点
②
光纤通过内部的全反射来传输一束经过编码的光信号
③
光载波调制方法采用移频键控FSK调制方法
④
光纤传输速率可以达到Gbps的量级
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