H31-341_V2.5 Question #92: Real Exam Question with Answer & Explanation

The correct answer is C. 20nm. See the full explanation below for the reasoning.

Question

The current sparse wavelength division multiplexing system generally works in the band from 1271nm to 1611nm. Which of the following is the channel spacing?

Options

A10nm
B5nm
C20nm
D18nm

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