NCTI – INSTALLER CONVENTIONAL
TEST
Which of the following will strengthen signals as they travel further away from
the headend via the trunk express network?
A) Uninterruptible power supplies.
B) Feeder cables.
C) Distribution amplifiers.
D) Fiber nodes. - Answer: C) Distribution amplifiers.
Which of the following defines a carrier wave?
A) A wave in which the frequencies are widely apart.
B) A wave with significantly greater frequency than the input signal.
C) A wave at the same frequency as the input signal.
D) A wave that has been turned into an electromagnetic wave. - ANSWER: B)
A wave of substantially greater frequency than the input signal.
Which of the following defines modulation?
A) The measurement of signal strength.
B)
B) A set of frequencies assigned to signals to distinguish them from one
another.
TEST
Which of the following will strengthen signals as they travel further away from
the headend via the trunk express network?
A) Uninterruptible power supplies.
B) Feeder cables.
C) Distribution amplifiers.
D) Fiber nodes. - Answer: C) Distribution amplifiers.
Which of the following defines a carrier wave?
A) A wave in which the frequencies are widely apart.
B) A wave with significantly greater frequency than the input signal.
C) A wave at the same frequency as the input signal.
D) A wave that has been turned into an electromagnetic wave. - ANSWER: B)
A wave of substantially greater frequency than the input signal.
Which of the following defines modulation?
A) The measurement of signal strength.
B)
B) A set of frequencies assigned to signals to distinguish them from one
another.
