Free CCNT Exam Braindumps (page: 37)

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A space-division stage:

  1. Uses a crosspoint switch.
  2. Uses a buffer memory.
  3. Switches time slots within a DS1.
  4. Is not used in a digital switch.
  5. Answer pending.

Answer(s): E



A digital switch is made up of the network fabric and:

  1. Signaling processor.
  2. Signal transfer point.
  3. Multiplexer.
  4. Control.

Answer(s): A



Time-division switches and __________ make up the switching fabric of a digital switch.

  1. Signaling processors
  2. Crossbar switches
  3. Control processors
  4. Space-division switches

Answer(s): D



Optical switching are not currently used because:

  1. Crossbar systems are less expensive.
  2. Optical switches lack required OAM&P features.
  3. Optical switching methodologies are still experimental.
  4. Of difficulties in conversion between electrical and optical signals.

Answer(s): C






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