AD-604-A Internet of Things - May 2023 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aWhat is Internet of things (IoT)? What is physical design and logical design in IoT?
   How to answer

   • Define Internet of Things (IoT) with interconnected things, sensors, Internet connectivity
   • Explain physical design: things, protocols, IoT levels/templates
   • Explain logical design: functional blocks, communication models and APIs
   • Diagram of logical/physical blocks if needed
2. 7 Marks
   bExplain various trend in Information and communication technologies and its impact on IoT.
   How to answer

   • List trends: ubiquitous connectivity, IPv6, cloud, big data analytics, miniaturization
   • Explain ICT enablers: wireless, mobile, M2M, semantic technologies
   • Discuss impact on IoT: scalability, heterogeneity, applications
3. 7 Marks
   aDescribe how a solution is designed for a particular problem by making use applied architecture in M2M/IoT. Also, explain the use of partitioning the architectural work and solution work into two domains.
   How to answer

   • Explain applied architecture concept for specific M2M/IoT problem
   • Describe steps of solution design using reference architecture
   • Explain partitioning into architectural work and solution work domains
   • Give example application
4. 7 Marks
   bWhat are the basic components and challenges of a sensor node?
   How to answer

   • Define sensor node and its role
   • List basic components: sensor, microcontroller, transceiver, memory, battery
   • Discuss challenges: energy, memory, security, deployment, maintenance
5. 7 Marks
   aExplain the types of Analog and Digital Sensors with Applications in IoT.
   How to answer

   • Differentiate analog vs digital sensors
   • Explain types with examples: temperature, pressure, PIR, etc.
   • Describe IoT applications for each type
6. 7 Marks
   bWhat is Actuator? Also explain the different types of Actuators with their functions in IoT.
   How to answer

   • Define actuator and its reverse transduction role
   • Classify types: electrical, hydraulic, pneumatic, thermal, magnetic
   • Explain functions with IoT examples: relay, motor, valve
7. 7 Marks
   aWhat is IEEE 802.15.4 protocol? How it is related to IoT?
   How to answer

   • Define IEEE 802.15.4 LR-WPAN PHY and MAC
   • Explain features: low rate, low power, topologies
   • Relate to IoT: basis for ZigBee, 6LoWPAN, constrained devices
8. 7 Marks
   bExplain about IoT Communication APIs in detail.
   How to answer

   • Define IoT communication APIs
   • Explain REST and WebSocket based APIs
   • Discuss request-response, publish-subscribe usage in IoT
9. 7 Marks
   aWhat is the function of communication functional block in an IoT system? What are the other components of a complete IoT system? Explain with diagram.
   How to answer

   • Define communication functional block role
   • List other blocks: device, services, management, security, application
   • Draw complete IoT system block diagram and explain interactions
10. 7 Marks
    bExplain Near Field Communication (NFC) and RFID.
    How to answer

    • Define NFC principle, range, modes of operation
    • Define RFID components: tag, reader, frequencies
    • Compare applications in IoT identification and payment
11. 7 Marks
    aWhat is the difference between AMQP and HTTP protocols?
    How to answer

    • Brief overview of AMQP and HTTP
    • Compare on messaging model, overhead, reliability, use-case
    • Conclude suitability for IoT constrained vs web environments
12. 7 Marks
    bWhat are the different types of messages in CoAP?
    How to answer

    • Define CoAP role in constrained IoT
    • List message types: Confirmable, Non-confirmable, Acknowledgement, Reset
    • Explain reliability mechanism with examples
13. 7 Marks
    aDesign and implement the functionality of a home intrusion detection IoT system by interfacing a webcam. Implement the function in the controller to capture the image from webcam and send it as an attachment in the email alert when an intrusion is detected.
    How to answer

    • Outline home intrusion detection architecture with webcam and controller
    • Describe interfacing and intrusion detection logic
    • Explain image capture and email alert with attachment function
    • Provide functional flow/steps
14. 7 Marks
    bWhat is relation between WSN and IoT? Explain with example.
    How to answer

    • Define WSN and IoT
    • Explain WSN as enabling network subset of IoT
    • Give example: WSN sensing integrated with Internet gateway/cloud
15. 14 Marks
    Write short notes on: (any Two)

    1. a)AMQP features and components
    2. b)Cloud storage models
    3. c)Attacks in IoT system
    How to answer

    • For each chosen topic: definition, key features/components
    • Explain working/models/attacks with examples
    • Conclude relevance to IoT systems