3.Not susceptible to interference

Data transmitted through a fiber-optic cable is much less susceptible to noise. It is also less susceptible to electromagnetic interference as compared to one moving through a copper wire. For example, there would be almost zero degree of quality degradation in a signal through a fiber optic cable, say even for a distance of over two kilometers, while a signal transmitted through a copper wire would experience a great deal of degradation in quality. It is, therefore, so efficient that roughly 99.6% of the signal reaches the router in most cases.
