Which signal type is used in fiber optic signal transmission?

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Multiple Choice

Which signal type is used in fiber optic signal transmission?

Explanation:
Digital signals are used in fiber optic transmission. In practice, data is carried by turning light on and off to represent binary 1s and 0s, or by other digital modulation formats, which makes the signal robust, easy to regenerate, and compatible with modern networks that rely on digital electronics and protocols. While analog transmission over fiber is possible, it’s less common for high-speed telecom because it’s more sensitive to noise and dispersion and harder to scale. Modulation is the technique used to encode data onto light, so it isn’t a signal type on its own. Hybrid signaling isn’t a standard category in this context.

Digital signals are used in fiber optic transmission. In practice, data is carried by turning light on and off to represent binary 1s and 0s, or by other digital modulation formats, which makes the signal robust, easy to regenerate, and compatible with modern networks that rely on digital electronics and protocols. While analog transmission over fiber is possible, it’s less common for high-speed telecom because it’s more sensitive to noise and dispersion and harder to scale. Modulation is the technique used to encode data onto light, so it isn’t a signal type on its own. Hybrid signaling isn’t a standard category in this context.

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