Digital Transmission: Data Communication and Computer Networks
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Questions and Answers

What is the process of converting binary data to a digital signal called?

  • Signal encoding
  • Digital modulation
  • Data modulation
  • Line coding (correct)
  • In digital communication, what does 'number of signal levels' refer to?

  • The number of data levels
  • The number of bits per pulse
  • The number of different voltage levels allowed in a signal (correct)
  • The number of different voltage levels that actually represent data values
  • What is the relationship between bit rate, pulse rate, and the number of different signal elements?

  • Bit rate = Pulse rate × log2L (correct)
  • Bit rate = Pulse rate - log2L
  • Bit rate = Pulse rate + log2L
  • Bit rate = Pulse rate ÷ log2L
  • What is the term for the number of voltage levels that actually represent data values in a digital communication system?

    <p>Data levels</p> Signup and view all the answers

    What is the purpose of digital-to-analog conversion?

    <p>To send digital data over a bandpass channel</p> Signup and view all the answers

    What is the general form of a sine wave?

    <p>$x(t) = A×sin(2πft + ϕ)$</p> Signup and view all the answers

    What is the relationship between bit rate and baud rate in analog transmission of digital data?

    <p>Baud rate is less than or equal to bit rate</p> Signup and view all the answers

    In Example 5.2, what is the number of data elements carried by each signal element?

    <p>10 data elements</p> Signup and view all the answers

    What is the process of converting binary data to digital signal called?

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

    What does the term 'Line Coding' refer to in the context of digital transmission?

    <p>Converting binary data to digital signal</p> Signup and view all the answers

    What does 'Bit Rate' represent in the context of digital transmission?

    <p>Bits per second</p> Signup and view all the answers

    In digital transmission, what does 'Pulse Rate' indicate?

    <p>Pulses or signals per second</p> Signup and view all the answers

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