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GB0-190-CN · Question #50
GB0-190-CN Question #50: Real Exam Question with Answer & Explanation
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Question
DNS 工作于OSI 参考模型的______。
Options
- A多模光纤可传输不同波长不同入射角度的光
- B多模光纤的成本比单模光纤低
- C采用多模光纤时,信号的最大传输距离比单模光纤长
- D多模光纤的纤芯较细
- E光纤
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