Free CCNT Exam Braindumps (page: 14)

Page 13 of 265

A service that interconnects PBXs without the use of dedicated trunks is called a:

  1. Centrex service.
  2. Switched service.
  3. Private network.
  4. Virtual private network.

Answer(s): D



Three aspects of service common to analog and digital are switching, signaling, and:

  1. Conversion.
  2. Billing.
  3. Transmission.
  4. Multiplexing.

Answer(s): C



Sound is the ______________movement of air.

  1. Electrical.
  2. Optical.
  3. Longitudinal.
  4. Mechanical.

Answer(s): D



A transducer is a device that:

  1. Amplifies voice signals.
  2. Changes energy from one form to another.
  3. Converts voice from digital to analog.
  4. Converts voice from analog to digital.

Answer(s): B






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