Chapter Review Questions

The following questions test your knowledge of topics explained in this chapter. You can find the answers to the questions in Appendix A, “Answers to Chapter Review Questions.”

1.Which type of trunk connects two local telephone company COs?

  1. tie trunk

  2. CO trunk

  3. interoffice trunk

  4. OPX trunk

2.What type of “tone” is used by a touch-tone phone to dial digits?

  1. CAS

  2. DTMF

  3. SF

  4. TDM

3.Which multiplexing process is used by TDM?

  1. Timeslots are assigned to different channels, regardless of whether there is data to transmit.

  2. Timeslots are assigned to different channels depending on which traffic has a higher priority at that time.

  3. All timeslots are used by the channel that is transmitting data at that time.

  4. Timeslots are assigned to the channel ...

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