RCDD Question #319: Real Exam Question with Answer & Explanation

The correct answer is C. Ability to handle analog signals. Copper wire can natively carry analog electrical signals (e.g., traditional telephone audio, analog video) without any conversion. Optical fiber, by contrast, requires analog-to-optical conversion at the transmitter and optical-to-analog conversion at the receiver, adding cost an

Question

Which characteristic is an advantage of copper based media over optical fiber cable?

Options

AWeight
BCorrosion resistance
CAbility to handle analog signals
DSusceptibility to EMI
EVery high data rates

Explanation

Copper wire can natively carry analog electrical signals (e.g., traditional telephone audio, analog video) without any conversion. Optical fiber, by contrast, requires analog-to-optical conversion at the transmitter and optical-to-analog conversion at the receiver, adding cost and complexity. The other options are all disadvantages of copper relative to fiber: fiber is lighter (A), more corrosion-resistant (B), immune to EMI while copper is highly susceptible (D - a disadvantage of copper), and fiber supports far higher data rates than copper (E - an advantage of fiber, not copper). Therefore, the native ability to handle analog signals is the correct advantage of copper.

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