Introduction to Digital Communication
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Questions and Answers

What is the process of sharing digital information called?

  • Telephony
  • Digitization
  • Digitalization (correct)
  • Communication

    • Which ancient form of visual communication is known as the oldest?

  • Smoke Signals (correct)
  • Courier
  • Carrier Pigeon
  • Morse Code

    • What is the term used to refer to the conversion of analog to digital signal?

  • Telegraphy
  • Communication
  • Digitalization
  • Digitization (correct)

    • What is the first digital code, developed by Samuel Morse in 1844?

    <p>Morse Code</p> Signup and view all the answers

    What is the term that refers to the binary 1 or 0 used in digital technology?

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

    What ancient mode of communication was used to deliver messages during ancient wars?

    <p>Carrier Pigeon</p> Signup and view all the answers

    What is the main function of Baudot Code?

    <p>Communicate with ships</p> Signup and view all the answers

    What does PSTN stand for in the context of telecommunication?

    <p>Public Switched Telephone Network</p> Signup and view all the answers

    What does Zigbee represent in the context of telecommunication?

    <p>Wireless communication technology</p> Signup and view all the answers

    What are the characteristics of 4G telecommunication?

    <p>Capability of installing apps</p> Signup and view all the answers

    Which modulation technique involves varying the amplitude of the carrier signal?

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

    What is the purpose of A/D Converter in digital communication?

    <p>Convert analog signal to digital signal</p> Signup and view all the answers

    Which communication system uses relatively low-frequency digital information signals to modulate high-frequency analog carriers?

    <p>Digital Communication System</p> Signup and view all the answers

    What is the main purpose of modulation in electronic communication?

    <p>Impress a low-frequency signal upon a higher-frequency signal</p> Signup and view all the answers

    What is the main characteristic of Digital Radio?

    <p>Modulating high-frequency analog carriers with digital information signals</p> Signup and view all the answers

    What is the process of converting analog to digital signal called?

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

    What ancient form of visual communication is known as the oldest?

    <p>Smoke Signals</p> Signup and view all the answers

    Which modulation technique involves varying the amplitude of the carrier signal?

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

    What does the term 'Digital' refer to in the context of digital technology?

    <p>Binary 1 or 0</p> Signup and view all the answers

    What is the main characteristic of Digital Radio?

    <p>Discrete Signals</p> Signup and view all the answers

    What is the purpose of A/D Converter in digital communication?

    <p>Analog to Digital Conversion</p> Signup and view all the answers

    What is the main purpose of modulation in electronic communication?

    <p>To impress a low-frequency signal upon a higher-frequency signal</p> Signup and view all the answers

    What does Zigbee represent in the context of telecommunication?

    <p>A wireless communication protocol for low-power, low-cost digital radios</p> Signup and view all the answers

    What is the purpose of A/D Converter in digital communication?

    <p>To convert analog signal to digital signal</p> Signup and view all the answers

    What does PSTN stand for in the context of telecommunication?

    <p>Public Switched Telephone Network</p> Signup and view all the answers

    What is the first digital code, developed by Samuel Morse in 1844?

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

    What is the term used to refer to the conversion of analog to digital signal?

    <p>A/D Converter</p> Signup and view all the answers

    What is the main characteristic of Digital Radio?

    <p>High-frequency analog carriers are modulated by relatively low-frequency digital information signals</p> Signup and view all the answers

    Which communication system uses relatively low-frequency digital information signals to modulate high-frequency analog carriers?

    <p>Digital Communication System</p> Signup and view all the answers

    What is the main characteristic of Continuous-Wave Modulation?

    <p>Varying amplitude of the carrier signal</p> Signup and view all the answers

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