IT-703-B Internet of Things - Dec 2025 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
   aList and explain the characteristics of IoT.
   How to answer

   • Define IoT as network of interconnected physical objects with sensing, connectivity and intelligence
   • List characteristics: connectivity, heterogeneity, dynamic changes, enormous scale, sensing, intelligence, energy, security
   • Explain each characteristic briefly with IoT example
2. 7 Marks
   bGive an overview of any five modern-day IoT applications.
   How to answer

   • Select five modern applications e.g. smart home, smart healthcare, smart agriculture, smart city, industrial IoT
   • Describe purpose and working of each
   • Mention sensors, connectivity and benefits for each
3. 7 Marks
   aDiscuss in detail about IoT Network configurations
   How to answer

   • Define IoT network and need for configurations/topologies
   • Discuss configurations: node-to-node, star, mesh, hierarchical, infrastructure vs ad-hoc
   • Explain role of gateway, internet, cloud in configurations with diagram
4. 7 Marks
   bExplain the basic components and challenges of a sensor node.
   How to answer

   • Define sensor node and its role in WSN/IoT
   • Explain basic components: sensor, microcontroller, transceiver, memory, battery/power unit
   • Discuss challenges: energy, memory, processing, deployment, security, fault tolerance
5. 7 Marks
   aDiscuss and differentiate between Analog and Digital sensors used in IoT.
   How to answer

   • Define analog sensors (continuous signal) and digital sensors (discrete signal)
   • Discuss working principle, interfacing and ADC need
   • Differentiate in table on signal, accuracy, noise, cost, examples
6. 7 Marks
   bExplain briefly Hydraulic actuator, Pneumatic actuator and Electrical actuator.
   How to answer

   • Define actuator and its function in IoT
   • Explain hydraulic actuator using fluid pressure
   • Explain pneumatic actuator using compressed air and electrical actuator using electric energy
7. 7 Marks
   aList and briefly describe the functional components of IoT.
   How to answer

   • Define functional view of IoT system
   • List components: sensing, communication, management, application, security
   • Briefly describe role of each component
8. 7 Marks
   bDiscuss in detail Zig Bee and its types in the IoT.
   How to answer

   • Introduce ZigBee, IEEE 802.15.4, short-range low-power protocol
   • Discuss device types: coordinator, router, end device and topologies
   • Explain types/modes and applications in IoT
9. 7 Marks
   aWrite the features of RFID technology? Describe the components of RFID systems with their roles.
   How to answer

   • Define RFID and its features: non-contact, automatic identification, range, data capacity
   • Describe components: tag, reader, antenna, middleware/database
   • Explain role of each component with working
10. 7 Marks
    bBriefly explain MQTT components and methods used for communication
    How to answer

    • Define MQTT as lightweight publish-subscribe protocol
    • Explain components: broker, publisher, subscriber, topic
    • Explain methods: connect, publish, subscribe, unsubscribe, QoS levels
11. 7 Marks
    aDiscuss CoAP message types and with a neat sketch explain CoAP Request Response model.
    How to answer

    • List CoAP message types: Confirmable, Non-confirmable, Acknowledgement, Reset
    • Explain CoAP request-response model with GET/POST/PUT/DELETE
    • Draw neat sketch of client-server exchange with piggybacked/separate response
12. 7 Marks
    bList and explain the AMP features and AMQP frame types.
    How to answer

    • Introduce AMQP as message-oriented middleware protocol
    • List and explain features: queuing, routing, reliability, security
    • Explain AMQP frame types: open, close, transfer, flow, etc.
13. 7 Marks
    aDescribe in detail the basic features and roles of Arduino and Raspberry Pi boards.
    How to answer

    • Introduce Arduino (microcontroller) and Raspberry Pi (single-board computer)
    • Describe features: processor, GPIO, memory, power, programming
    • Explain roles in IoT prototyping, edge processing and interfacing sensors/actuators
14. 7 Marks
    bExplain the different cloud storage models and communication APIs used in IoT.
    How to answer

    • Define cloud storage need in IoT
    • Explain models: private, public, hybrid, community cloud
    • Explain communication APIs: REST, WebSocket, MQTT-based APIs with examples
15. 14 Marks
    Write short notes on any two of the following:

    1. a)Data Analytics for IoT.
    2. b)Wireless Sensor Networks and its Applications.
    3. c)Hysteresis error and Quantization error
    4. d)Iot vs M2M.
    How to answer

    • Lead-in about attempting any two topics
    • For each chosen topic give definition, key points and IoT relevance
    • Add diagram/example and applications/challenges where applicable