IT-703-B Internet of Things - Jun 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
   aDefine IoT and give its characteristics.
   How to answer

   • Definition of IoT as network of interconnected physical objects with sensing, connectivity and intelligence
   • Key characteristics: connectivity, heterogeneity, dynamic changes, enormous scale, sensing, intelligence, energy efficiency, security
   • Brief examples of characteristics in IoT systems
2. 7 Marks
   bDescribe IoT reference architecture and information model.
   How to answer

   • Layers of IoT reference architecture: perception, network, middleware, application, business layers
   • Information model: virtual entities, IoT services, resources, devices and associations
   • Diagram of reference architecture and role of information model
3. 7 Marks
   aWrite in detail various emerging applications of IoT.
   How to answer

   • Overview of emerging IoT domains: smart home, healthcare, agriculture, industry, transport
   • Details of each application with use-case and benefits
   • Trends driving emerging applications
4. 7 Marks
   bWhat is M2M communication? What are the differences between machines of M2M and things in IoT?
   How to answer

   • Definition of M2M communication and its architecture
   • Concept of things in IoT vs machines in M2M
   • Comparison table: communication type, network, intelligence, scalability, protocols
5. 7 Marks
   aWhat are the basic components and challenges of a sensor node?
   How to answer

   • Components of sensor node: sensing unit, processing unit, transceiver, power unit
   • Functions of each component
   • Challenges: energy, limited computation, deployment, security, fault tolerance
6. 7 Marks
   bWrite short note on actuator and its types.
   How to answer

   • Definition of actuator and its role in IoT
   • Types: hydraulic, pneumatic, electric, thermal, magnetic actuators
   • Examples and selection criteria
7. 7 Marks
   aExplain IoT Networking. What are the functional components of IoT Network?
   How to answer

   • Concept of IoT networking and protocol stack overview
   • Functional components: end devices, gateways, network infrastructure, cloud/backend
   • Data flow and management functions
8. 7 Marks
   bWhat is 6LoWPAN, explain in detail? What is the role of 6LoWPAN in IoT?
   How to answer

   • Definition of 6LoWPAN and adaptation layer concept
   • Features: header compression, fragmentation, mesh addressing over IEEE 802.15.4
   • Role in IoT: enabling IPv6 to constrained devices and internet integration
9. 7 Marks
   aWhat is ZigBee? Explain it with its types.
   How to answer

   • Definition of ZigBee and IEEE 802.15.4 basis
   • Device types and topologies: coordinator, router, end device; star, mesh, tree
   • Types/profiles and applications
10. 7 Marks
    bDiscuss the features and applications of RFID.
    How to answer

    • Principle of RFID: tags, readers, frequencies
    • Features: non-line-of-sight, unique ID, passive/active tags
    • Applications: inventory, access control, logistics, healthcare
11. 7 Marks
    aDiscuss about CoAP Protocol. Explain CoAP request response model in detail.
    How to answer

    • Overview of CoAP as constrained RESTful protocol over UDP
    • Message types and request-response model: CON, NON, ACK, RST, methods
    • Options, resource discovery and reliability mechanisms
12. 7 Marks
    bWhat is the MQTT Protocol? What are its applications?
    How to answer

    • Definition of MQTT as lightweight publish-subscribe protocol
    • Architecture: broker, publisher, subscriber, topics and QoS levels
    • Applications in IoT, home automation, telemetry
13. 7 Marks
    aExplain Arduino boards. List the features which make Arduino boards widely used.
    How to answer

    • Overview of Arduino boards and open-source platform
    • Types of boards and hardware/software components
    • Features making it widely used: low cost, ease of programming, shields, community support
14. 7 Marks
    bDescribe different cloud service models in detail.
    How to answer

    • Definition of cloud service models
    • Details of IaaS, PaaS, SaaS with examples
    • Comparison and use in IoT
15. 14 Marks
    Write short notes on any two of the following:

    1. i)Hysteresis error
    2. ii)AMQP
    3. iii)Raspberry Pi Board
    How to answer

    • For chosen two topics: definition and key principle
    • Architecture/components or working steps
    • Applications/advantages with example