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 (C)</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 (A)</p> Signup and view all the answers

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

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

What is the main function of Baudot Code?

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

What does PSTN stand for in the context of telecommunication?

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

What does Zigbee represent in the context of telecommunication?

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

What are the characteristics of 4G telecommunication?

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

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

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

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

<p>Digitization (C)</p> Signup and view all the answers

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

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

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

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

What is the main characteristic of Digital Radio?

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

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

<p>Analog to Digital Conversion (B)</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 (D)</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 (C)</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 (A)</p> Signup and view all the answers

What does PSTN stand for in the context of telecommunication?

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

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

<p>Baudot Code (B)</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 (C)</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 (A)</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 (B)</p> Signup and view all the answers

What is the main characteristic of Continuous-Wave Modulation?

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

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