Free CCNT Exam Braindumps (page: 18)

Page 17 of 265

A _____________ varies in descrete steps.

  1. Digital signal
  2. Analog carrier
  3. Voice signal
  4. Multiplexed signal

Answer(s): A



A digital signal has a bandwidth expressed in _________ per second.

  1. Baud
  2. Hertz
  3. Cycles
  4. Bits

Answer(s): D



In a digital system, regenerators are placed before the signal drops below the:

  1. Analog signal level.
  2. Noise level.
  3. Noise margin.
  4. DS0 level.

Answer(s): C



As long as interfering signals are kept below the noise margin, digital transmission systems are immune from:

  1. Frequency distortion.
  2. Crosstalk.
  3. Echo.
  4. Delay distortion.

Answer(s): B






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