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Immune to the effects of electromagnetic interference (EMI) and therefore has a much longer effective usable length (up to two kilometers in some cases) is?
Correct Answer: D
Since fiber optics does not use electrical signals to transmit the information (it uses lights that goes through the mirrored silvered cable from source to end), its not affected by EMI (Electro Magnetic Interference) like other copper transmission methods like 10base5 and 10base2, therefore EMI does not affect the possible transmission distance. Fiber optics can have a great distance between end points, much greater than the copper transmission methods. Examples of Fiber optics standards are: 100BaseFX and 1000BaseFX.