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Data Communication Chapter One: Simplified Communications Model
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Data Communication Chapter One: Simplified Communications Model

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Questions and Answers

What is the main function of the transmitter in a simplified communications model?

  • Allocating transmission medium among users
  • Generating data for transmission
  • Accepting signals from the transmission system
  • Transforming and encoding information into electromagnetic signals (correct)
  • Which task is associated with ensuring that the transmission system is not overwhelmed?

  • Congestion control (correct)
  • Interfacing
  • Signal generation
  • Multiplexing
  • What is the role of the receiver in data communication?

  • Transforming and encoding information
  • Accepting signals from the transmission system (correct)
  • Allocating transmission medium among users
  • Generating signals from data
  • Why is synchronization important in communication?

    <p>To know when signals start and end</p> Signup and view all the answers

    What is the purpose of error detection and correction in communication systems?

    <p>To detect and fix errors that may happen during transmission</p> Signup and view all the answers

    Why is flow control necessary in data communications?

    <p>To ensure that the data source does not overwhelm the destination with information</p> Signup and view all the answers

    What is one of the benefits of addressing in a networked environment?

    <p>Ensuring unique identification for each system on the network</p> Signup and view all the answers

    Which task ensures that data is only received by the intended recipient?

    <p>Security measures</p> Signup and view all the answers

    Why is message formatting important in data communications?

    <p>To ensure that communicating parties agree on the form of transmitted data</p> Signup and view all the answers

    What is the main role of network management in data communications?

    <p>Planning for future growth and configuring the system</p> Signup and view all the answers

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