Analog vs Digital Signals and Sockets Programming Quiz
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Questions and Answers

What is a key advantage of digital signals over analog signals?

  • Digital signals have a higher bandwidth
  • Digital signals are more susceptible to noise
  • Digital signals incur less attenuation (correct)
  • Digital signals are more expensive
  • How does the bandwidth of a signal relate to its data rate?

  • Bandwidth increases as data rate increases (correct)
  • Bandwidth and data rate are not related
  • Bandwidth remains constant regardless of data rate
  • Bandwidth decreases as data rate increases
  • Why are digital signals the preferred choice despite greater attenuation?

  • Digital signals are less susceptible to noise
  • Digital signals are easier to process
  • Digital signals provide higher bandwidth
  • Digital signals are more cost-effective (correct)
  • What characteristic of digital signals makes them less prone to distortion from external interference?

    <p>Use of dc components</p> Signup and view all the answers

    In the context of signals, what role does data rate play in determining the effectiveness of digital communication?

    <p>Data rate impacts the speed and efficiency of digital communication</p> Signup and view all the answers

    Which characteristic of digital signals contributes to their reduced vulnerability to external disturbances?

    <p>Less susceptibility to noise</p> Signup and view all the answers

    What is the term for a direct link between two devices without any intermediate devices?

    <p>Point-to-point</p> Signup and view all the answers

    Which type of signal maintains a constant level and then changes to another constant level?

    <p>Digital signal</p> Signup and view all the answers

    What is the term for a transmission system with a limited band of frequencies that restricts the data rate?

    <p>Absolute bandwidth</p> Signup and view all the answers

    Which term refers to entities that convey meaning in a data transmission system?

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

    What is the advantage of digital signals over analog signals in terms of noise resilience?

    <p>Digital signals are more resilient to noise</p> Signup and view all the answers

    In multi-point transmission, how many devices share the link?

    <p>More than two devices</p> Signup and view all the answers

    What is the main advantage of a digital signal being less susceptible to errors compared to an analog signal?

    <p>Presence or absence of transitions in the signal</p> Signup and view all the answers

    Which modulation method is known for changing the height of the wave to encode data?

    <p>Amplitude Modulation (AM)</p> Signup and view all the answers

    What happens when a carrier wave's phase remains unchanged in Phase Modulation (PM)?

    <p>Corresponds to a bit value of 0</p> Signup and view all the answers

    What does a modem do in digital communication?

    <p>Encodes and decodes data by manipulating the carrier wave</p> Signup and view all the answers

    Which multiplexing technique breaks up a high-speed circuit into several slower logical circuits?

    <p>Time Division Multiplexing (TDM)</p> Signup and view all the answers

    What is the function of a Codec in digital communication?

    <p>Translates analog voice signals into digital form</p> Signup and view all the answers

    In Analog Transmission of Digital Data, what device is used to translate digital data into analog signals?

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

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