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?

A.
Coaxial cable

B.
Twisted Pair cable

C.
Axial cable

D.
Fiber Optic cable

Explanation:
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.