Exam Questions And 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?
, NCTI - Installer Conventional (Lesson 1)
Exam Questions And Answers
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
B)E
C)A
D)W-
correct answer ✅Answer: D ) W
Which of the following describes the process of measuring an
analog signal at a specific interval?
A ) Encoding