Data Communications Overview Quiz
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Questions and Answers

Which of the following is an example of data communications?

  • Sending emails and instant messages (correct)
  • Sharing physical books between two devices
  • A conversation between two people
  • Listening to music
  • What is data communications?

  • Conversations between two people
  • Sharing physical objects between two devices
  • Exchange of data between two devices using a form of transmission medium (correct)
  • Sending physical mail between two devices
  • What are the fundamental characteristics that determine the effectiveness of a data communication system?

  • Delivery, accuracy, timeliness, and jitter (correct)
  • Taste, smell, texture, and appearance
  • Temperature, pressure, humidity, and wind speed
  • Color, size, shape, and weight
  • What does the term 'jitter' refer to in the context of data communication?

    <p>Variation in the arrival times of data packets</p> Signup and view all the answers

    What is a network in the context of data communications?

    <p>A set of devices connected by communication links</p> Signup and view all the answers

    What are the different forms in which information data can be represented in data communications?

    <p>Text, numbers, images, audio, and video</p> Signup and view all the answers

    What is the term for delivering data as they are produced, in the same order that they are produced, and without significant delay?

    <p>Timely delivery</p> Signup and view all the answers

    Which factor can negatively impact the video and audio quality due to time delay in the sending of data packets over a network connection?

    <p>Jitter</p> Signup and view all the answers

    What is the term for a physical path by which a message travels from sender to receiver?

    <p>Communication channel</p> Signup and view all the answers

    In which mode of data flow communication can both stations transmit and receive simultaneously?

    <p>Full Duplex mode</p> Signup and view all the answers

    What type of broadcasting involves commercial stations broadcasting music, news, weather reports, and other programs?

    <p>AM &amp; FM radio broadcasting</p> Signup and view all the answers

    What type of communication is unidirectional, where only one of the devices on a link can transmit?

    <p><strong>Simplex</strong> mode</p> Signup and view all the answers

    What represents an agreement between the communicating devices and governs data communications?

    <p><strong>Data protocol</strong></p> Signup and view all the answers

    What is the term for a set of rules that governs the data communications?

    <p><strong>Data protocol</strong></p> Signup and view all the answers

    Which device sends the data messages in a communication process?

    <p><strong>Sender</strong></p> Signup and view all the answers

    What is the term for when there is a time delay in the sending of data packets over a network connection?

    <p>Jitter</p> Signup and view all the answers

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