CS-801 Internet of Things - May 2026 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
   aExplain the conceptual and architectural framework of IoT and discuss its significance in intelligent systems.
   How to answer

   • Define IoT conceptual framework - vision, characteristics, intelligent interaction
   • Explain architectural framework layers - perception, network, middleware, application/business
   • Diagram of layered architecture
   • Significance in intelligent systems - automation, decision making, efficiency, examples
2. 7 Marks
   bAnalyze IoT vs M2M and IoT vs Web of Things (WoT) with suitable examples and applications.
   How to answer

   • Define IoT, M2M, WoT
   • Compare IoT vs M2M on communication, scope, architecture
   • Compare IoT vs WoT on web integration, interoperability
   • Give suitable examples and applications for each
3. 7 Marks
   aExplain the basic components of a sensor node and differentiate between sensor node and actuator node.
   How to answer

   • List basic components of sensor node - sensing unit, processing, transceiver, power
   • Explain function of each component
   • Define actuator node and its components
   • Differentiate sensor node vs actuator node in table
4. 7 Marks
   bDescribe bias, drift, hysteresis error and quantization error in sensors with suitable examples and applications.
   How to answer

   • Define bias, drift, hysteresis error, quantization error
   • Explain cause and effect with sensor example
   • Give applications impacted by each error
   • Mention calibration/compensation methods
5. 7 Marks
   aExplain IoT service oriented architecture (SOA) and discuss its significance in connected communication systems.
   How to answer

   • Define Service Oriented Architecture (SOA) in IoT context
   • Explain SOA layers/services - sensing, network, service, interface
   • Discuss reusability, interoperability, scalability
   • Significance in connected communication systems with examples
6. 7 Marks
   bCritically examine the advantages and limitations of ZigBee, 6LoWPAN and IEEE 802.15.4 communication technologies.
   How to answer

   • Brief overview of ZigBee, 6LoWPAN, IEEE 802.15.4
   • List advantages - power, range, data rate, addressing
   • List limitations - bandwidth, scalability, interference
   • Critical comparison for IoT use cases
7. 7 Marks
   aDefine MQTT and Explain the role of publish-subscribe communication mechanisms in MQTT based IoT systems.
   How to answer

   • Define MQTT - lightweight messaging protocol
   • Explain broker, client, topic concepts
   • Explain publish-subscribe mechanism and QoS levels
   • Role in MQTT based IoT systems - decoupling, scalability, low bandwidth
8. 7 Marks
   bDescribe CoAP message types and explain the CoAP request-response model with suitable examples.
   How to answer

   • List CoAP message types - Confirmable, Non-confirmable, ACK, Reset
   • Explain request-response model - methods GET, POST, PUT, DELETE
   • Explain piggybacked and separate responses
   • Give suitable client-server examples
9. 7 Marks
   aExplain attacks in IoT systems and examine the role of security monitoring and threat prevention mechanisms in IoT environments.
   How to answer

   • Classify IoT attacks by layer - perception, network, application
   • Explain examples - spoofing, DoS, eavesdropping, malware
   • Explain security monitoring - IDS, logging, anomaly detection
   • Explain threat prevention - encryption, authentication, updates
10. 7 Marks
    bDifferentiate between Arduino and Raspberry Pi on the basis of architecture, processing capability and IoT applications.
    How to answer

    • Brief overview of Arduino and Raspberry Pi
    • Compare architecture - microcontroller vs microprocessor/SOC
    • Compare processing capability, OS, GPIO, power
    • Compare suitability for IoT applications with examples
11. 7 Marks
    aDescribe modern day IoT applications in healthcare, smart city, agriculture and industrial automation systems with suitable examples.
    How to answer

    • Define modern IoT application domains
    • Explain healthcare, smart city examples
    • Explain agriculture, industrial automation examples
    • Highlight benefits - efficiency, monitoring, automation
12. 7 Marks
    bExplain IoT node, IoT gateway and IoT proxy and discuss their significance in IoT communication systems.
    How to answer

    • Define IoT node, gateway, proxy
    • Explain functions - sensing, protocol translation, caching/security
    • Explain communication flow between them
    • Significance in scalability and interoperability
13. 7 Marks
    aAnalyze RFID features, working principles and applications with suitable examples.
    How to answer

    • Define RFID system - tag, reader, backend
    • Explain working principle - electromagnetic coupling, backscatter
    • Explain features - passive/active tags, frequency bands
    • Give applications with examples - inventory, access control
14. 7 Marks
    bExamine the role of NFC, Bluetooth and Wireless Sensor Networks in short range IoT communication systems.
    How to answer

    • Brief overview of NFC, Bluetooth, WSN
    • Explain range, data rate, power characteristics
    • Role in short-range IoT communication
    • Use cases and limitations
15. 14 Marks
    Write short note on any two of the following: -

    1. a)Actuator Types, Analog and Digital Sensors
    2. b)XMPP, AMQP Features and IoT Challenges
    3. c)Cloud Storage Models, Vulnerability Analysis and Smart Home Applications
    How to answer

    • Select any two topics for detailed notes
    • Define key terms and features for each
    • Explain working/applications with examples
    • Conclude with significance/challenges