Mastering the Basic Communication Model

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Questions and Answers

Which component of the communication model is responsible for transforming the source signal to make it suitable for the transmission channel?

  • Source
  • Receiver
  • Sink
  • Modulator (correct)

What is the role of the transmitter in the communication model?

  • Receive the signal on the channel
  • Amplify the received signal
  • Introduce the modulated signal into the channel (correct)
  • Transform the source signal

What is the purpose of the demodulator in the communication model?

  • Receive the signal on the channel
  • Recover the original source signal from the received signal (correct)
  • Transform the source signal
  • Amplify the received signal

What is the transmission channel in the communication model?

<p>Physical link between the communicating parties (B)</p>
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What type of communication system can send information in one direction only?

<p>Simplex System (B)</p>
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Which one of the following is NOT a component of the basic communication model?

<p>Transmitter (B)</p>
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Which component of the communication model transforms the source signal to make it suitable for the transmission channel?

<p>Modulator (B)</p>
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What is the function of the demodulator in the communication model?

<p>Transforms the source signal (B)</p>
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Which type of communication system is capable of sending information in one direction only?

<p>Simplex System (A)</p>
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What is the purpose of the transmitter in the communication model?

<p>Introduce the modulated signal into the channel (C)</p>
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Which unit of measurement is used to express the power ratios between two signals in the electronic communication field?

<p>Decibel (dB) (A)</p>
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What is the length that one cycle of an electromagnetic wave occupies in space called?

<p>Wavelength (D)</p>
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What is the purpose of dividing the radio frequency band into narrower bands?

<p>To accommodate different types of signals (A)</p>
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What is the relationship between decibel (dB) and bel (B)?

<p>1 bel = 0.1 decibel (D)</p>
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What is the main purpose of converting information into electromagnetic energy in the communication process?

<p>To enable long-distance communication (C)</p>
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