100BASE-X采用的编码技术为4B/5B编码,这是一种两级编码方案,首先要把4位分为一组的代码变换成5单位的代码,再把数据变成( )编码。
- A.NRZ-I
- B.AMI
- C.QAM
- D.PCM
正确答案及解析
正确答案
A
解析
100BASE-FX采用4B/5B和NRZ-I编码。
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