Introduction to Data Communications
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Questions and Answers

Who invented the telephone in 1876?

  • Samuel F.B. Morse
  • Emile Baudot
  • Alexander Graham Bell (correct)
  • ISO
  • What does data refer to in data communications?

  • Information represented by a sequence of symbols (correct)
  • Information in Morse code
  • Information that is colored and organized
  • Alphanumeric information only
  • Which organization is responsible for standards related to telephone and telegraph communications?

  • CCITT (correct)
  • ISO
  • ANSI
  • IEEE
  • Who invented the Telegraph and developed Morse code in 1837?

    <p>Samuel F.B. Morse</p> Signup and view all the answers

    Which organization creates sets of rules and standards for graphics, document exchange, and related technologies?

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

    Who invented a telegraph multiplexer allowing signals from multiple telegraph equipments in 1874?

    <p>Emile Baudot</p> Signup and view all the answers

    What is the general term that describes the equipment that converts digital signals to analog signals and interfaces the DTE to the analog transmission medium?

    <p>Data Communications Equipment (DCE)</p> Signup and view all the answers

    Which data transmission mode is best suited for long-distance data transfer or when a relatively small amount of data is being sent?

    <p>Serial Data Transmission</p> Signup and view all the answers

    What type of configuration involves three or more stations or terminals connecting to each other?

    <p>Multipoint configuration</p> Signup and view all the answers

    Which term describes the interface equipment used at stations to adapt digital signals from computers to a form suitable for transmission?

    <p>Data Terminal Equipment (DTE)</p> Signup and view all the answers

    What characterizes Simplex data transmission?

    <p>Signals travel in one direction only</p> Signup and view all the answers

    What distinguishes Parallel Data Transmission from Serial Data Transmission?

    <p>Requires a separate clock signal line</p> Signup and view all the answers

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