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NCTI - Installer Conventional (Lesson 1) with verified answers /passed
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NCTI - Installer Conventional (Lesson 1) with verified answers /passed
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NCTI - Installer Conventional (Lesson 1)Which of the following will strengthen signals as they move farther away from the headend through the
trunk express system?
A ) Uninterruptable power supplies.
B ) Feeder cables.
C ) Distribution amplifiers.
D ) Fiber nodes. - correct answer ✔✔Answer: C ) Distribution amplifiers
Which of the following describes a carrier wave?
A ) A wave where the frequencies are spaced widely apart.
B ) A wave with a much higher frequency than the input signal.
C ) A wave with the same frequency as the input signal.
D ) A wave that has been converted to an electromagnetic wave. - correct answer ✔✔Answer: B ) A wave
with a much higher frequency than the input signal.
Which of the following describes modulation?
A ) The measure of signal strength.
B ) A range of frequencies assigned to signals to keep them separate from one another.
C ) Reproducing the information of a signal from a carrier wave.
D ) The reshaping of a carrier wave to include information contained by an input signal. - correct answer
✔✔Answer: D ) The reshaping of a carrier wave to include information contained by an input signal.
Which of the following is the symbol for power?
A)R
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