What is a key advantage of using optical fiber?

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Multiple Choice

What is a key advantage of using optical fiber?

Optical fiber’s main advantage is its immunity to electromagnetic interference because it carries signals as light in a dielectric medium (glass or plastic) rather than as electrical current in a conductor. Since there’s no metal path for EMI to induce voltages, electrical noise from nearby equipment, motors, or power lines doesn’t affect the signal, preserving integrity over long runs and in noisy environments. Other statements don’t fit this advantage: optical fiber actually supports very high bandwidth, not lower; it’s not an advantage that it’s more brittle than copper—that’s a material drawback rather than a benefit; and it does not have higher attenuation—in fact, attenuation is typically much lower in fiber over long distances, which is another key benefit.

Optical fiber’s main advantage is its immunity to electromagnetic interference because it carries signals as light in a dielectric medium (glass or plastic) rather than as electrical current in a conductor. Since there’s no metal path for EMI to induce voltages, electrical noise from nearby equipment, motors, or power lines doesn’t affect the signal, preserving integrity over long runs and in noisy environments.

Other statements don’t fit this advantage: optical fiber actually supports very high bandwidth, not lower; it’s not an advantage that it’s more brittle than copper—that’s a material drawback rather than a benefit; and it does not have higher attenuation—in fact, attenuation is typically much lower in fiber over long distances, which is another key benefit.

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