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 (C)</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 (B)</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 (A)</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 (B)</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 (B)</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 (A)</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 (C)</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 (C)</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 (B)</p> Signup and view all the answers

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

<p><strong>Data protocol</strong> (B)</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> (C)</p> Signup and view all the answers

Which device sends the data messages in a communication process?

<p><strong>Sender</strong> (C)</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 (B)</p> Signup and view all the answers

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