Free CCNT Exam Braindumps (page: 19)

Page 18 of 265

To convert from analog to digital and vice versa, digital transmission systems use:

  1. Multiplexers.
  2. FDM.
  3. Type A channel banks.
  4. Codecs.

Answer(s): D



A codec would be found in:

  1. An A type channel bank.
  2. An analog phone.
  3. A digital phone.
  4. A SS7 signal transfer point.

Answer(s): C



The most common codec uses:

  1. Adaptive pulse code modulation.
  2. Pulse code modulation.
  3. Delta modulation.
  4. Frequency modulation.

Answer(s): B



The three steps in PCM are _______, quantizing, and companding.

  1. Compression
  2. Expansion
  3. Sampling
  4. Conversion

Answer(s): C






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