Discussion
How to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Answer: D
Correct answer: Fiber-optic cable
Fibre carries light rather than current, so it neither radiates interference nor picks any up, and it is completely immune to electromagnetic interference and to the ground potential differences that trouble copper between buildings. Coaxial cable and shielded twisted pair reduce interference; only fibre is genuinely unaffected by it.
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