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IT-604 (C) · Wireless Sensor Networks/Important Questions

Wireless Sensor Networks (IT-604 (C)) - Important Questions

  1. Unit 17 Marks High Priority

    Define a Wireless Sensor Network (WSN). Explain its main components, primary design goals and typical deployment scenarios.

    Core introductory topic — frequent in Unit 1; covers basic definitions, components and scope of WSN.

  2. Unit 17 Marks Medium Priority

    List and explain the major network characteristics of Wireless Sensor Networks (WSNs), including constraints on energy, computation, storage, communication and mobility.

    Fundamental topic on characteristic constraints and behaviour of sensor networks; appears repeatedly as short/long questions.

  3. Unit 17 Marks Medium Priority

    Discuss the major application domains of Wireless Sensor Networks. Classify applications and give two specific examples from each class (e.g., environmental monitoring, industrial, healthcare, military, smart cities).

    Standard application-based question — often asked to test breadth of understanding and classification ability.

  4. Unit 110 Marks High Priority

    Describe the common network architectures for Wireless Sensor Networks. Compare flat (peer-to-peer), hierarchical (clustered), and layered/agent-based architectures in terms of scalability, energy efficiency and routing support.

    High-frequency architectural topic; expects comparison of architectural styles used in WSN design.

  5. Unit 110 Marks High Priority

    Explain and compare data-centric, hierarchical and location-based routing strategies for WSNs. Give one practical example protocol or approach for each strategy and state its principal advantage.

    Core question on routing paradigms within Unit 1 architectures; representative of repeated exam patterns.

  6. Unit 17 Marks Medium Priority

    Explain the role of MEMS technology in Wireless Sensor Networks. Describe basic MEMS sensor and actuator principles, major fabrication techniques and typical examples of MEMS devices used in WSN nodes.

    Technical background topic on MEMS — standard conceptual question from Unit 1.

  7. Unit 17 Marks High Priority

    Draw and explain the block diagram of a typical sensor node (mote). Describe the functions of its major subsystems: sensing element, signal conditioning, microcontroller/processor, radio transceiver, power supply and memory.

    Hardware/platform fundamentals — frequently examined to check knowledge of mote internals and node design.

  8. Unit 17 Marks High Priority

    Compare TinyOS and Contiki (or another contemporary WSN OS) in terms of architecture, programming model, concurrency support and suitability for constrained sensor nodes.

    Software platform question — often asked to compare operating systems and programming models used on sensor nodes.

  9. Unit 17 Marks Medium Priority

    Discuss the main design challenges in Wireless Sensor Networks arising from limited energy resources. Explain how these challenges affect choices in hardware, communication protocols and network architecture.

    Design challenge synthesis question combining several Unit 1 themes: constraints, QoS and trade-offs.

  10. Unit 110 Marks High Priority

    Describe key power conservation mechanisms applicable in Wireless Sensor Networks across the physical, MAC and network layers (for example, duty-cycling, low-duty MACs, clustering and data aggregation). Explain briefly how each mechanism improves node lifetime.

    Applied energy-conservation question connecting PHY/MAC/architecture considerations; a common high-value exam topic.

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