Communication Protocols for IoT and Industry 4.0 Quiz
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Questions and Answers

What is the maximum payload allowed in Wireless HART?

  • 100 bytes
  • 256 bytes
  • 64 bytes
  • 127 bytes (correct)

    • How are communication collisions avoided in Wireless HART?

  • Random access
  • TDMA technology (correct)
  • Frequency hopping
  • CDMA technology

    • What technology is used in Wireless HART to provide deterministic communications?

  • SDMA
  • FDMA
  • TDMA (correct)
  • CDMA

    • How are super frames structured in Wireless HART?

    <p>Variable number of time slots per frame</p> Signup and view all the answers

    What does Wireless HART support in terms of network topologies?

    <p>Both star and mesh topologies</p> Signup and view all the answers

    In Wireless HART, when does the communication occur for any message?

    <p>At a fixed time and frequency slot</p> Signup and view all the answers

    Which type of sensor provides continuous readings within a certain range of values?

    <p>Analog sensor</p> Signup and view all the answers

    A sensor that operates within a strictly binary framework, detectable by a computer as either a 0 or 1, is known as:

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

    What type of sensor does not require an external power source to operate?

    <p>Passive sensor</p> Signup and view all the answers

    Which sensor type provides a single value as output to represent a physical property being monitored?

    <p>Scalar sensor</p> Signup and view all the answers

    A sensor that directly converts physical phenomena into a measurable signal without manipulation is classified as:

    <p>Analog sensor</p> Signup and view all the answers

    Which sensor type is more likely to require calibration to ensure accurate measurements over time?

    <p>Analog sensor</p> Signup and view all the answers

    What is the primary purpose of the IEEE 802.15.4 standard?

    <p>To provide a framework for lower layers (MAC and PHY) for wireless personal area network (WPAN)</p> Signup and view all the answers

    What type of modulation is used by the IEEE 802.15.4 standard?

    <p>Phase Shift Keying</p> Signup and view all the answers

    What is the data transmission rate for 868 MHz and 915 MHz respectively?

    <p>20/40 kbps</p> Signup and view all the answers

    What is the maximum distance for communication between neighboring devices using IEEE 802.15.4?

    <p>~75m</p> Signup and view all the answers

    What is the purpose of DSSS coding scheme in IEEE 802.15.4?

    <p>To transmit information</p> Signup and view all the answers

    What is the characteristic of IEEE 802.15.4 in terms of power consumption?

    <p>Low power consumption</p> Signup and view all the answers

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