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H31-311_V2.5 · Question #368
H31-311_V2.5 Question #368: Real Exam Question with Answer & Explanation
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Question
In a wavelength division system, after a certain distance of transmission, the optical signal-to- noise ratio of the receiving end signal will be reduced to a certain extent. Which is the main reason?
Options
- AUse of EDFA
- BUse of Wavelength Combiner
- CNo new optical fiber is used
- DThe optical fiber attenuation is too large
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