CompTIA
N10-005 · Question #892
N10-005 Question #892: Real Exam Question with Answer & Explanation
The correct answer is C: Coaxial. Coaxial cable has a built-in metallic shield that significantly reduces electromagnetic interference (EMI), making it the best choice for factory environments.
Question
The cost of installing fiber cable in a factory environment is too high. Which of the following cables should be used to minimize the effect of EMI?
Options
- ACAT6
- BUTP
- CCoaxial
- DCrossover
Explanation
Coaxial cable has a built-in metallic shield that significantly reduces electromagnetic interference (EMI), making it the best choice for factory environments.
Common mistakes.
- A. CAT6, while an improvement over CAT5e, is still an unshielded twisted pair cable in its standard form and remains susceptible to EMI in high-interference environments.
- B. UTP (Unshielded Twisted Pair) explicitly lacks shielding and is the most vulnerable cable type to EMI.
- D. A crossover cable is a wiring configuration of twisted pair cable (used for direct device-to-device connections), not a cable type with EMI shielding properties.
Concept tested. Coaxial cable shielding for EMI resistance in industrial environments
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