Which of the following technologies does not make use of an electrical signal for communication? A. twisted pair cable B. fibre-optic cable C. broadband over powerlines D. coaxial cable
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Twisted pair cable - This technology uses electrical signals for communication. B. Fibre-optic cable - This technology uses light signals, not electrical signals, for communication. C. Broadband over powerlines - This technology uses electrical signals for Show more…
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