NCTI - Installer Conventional (Lesson 1) UPDATED ACTUAL Exam Questions and CORRECT Answers

NCTI - Installer Conventional (Lesson 1)
UPDATED ACTUAL Exam Questions and
CORRECT Answers
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.