FOC (Fiber Optic Route Checker) Interview Question:

Explain fiber as communications medium?

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Fiber is the communications medium of choice, since its greater distance and bandwidth capabilities make it either the only choice or considerably less expensive than copper or wireless. Only inside buildings is there a choice to be made, and that choice is affected by economics, network architecture and the tradition of using copper inside buildings. Next, we'll look at the fiber/copper/wireless choices in more detail.
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