Internet of Things — DU B. Sc. (Hons) Electronics Previous Year Question Papers

Instruction for Candidates 3. Question paper should have 7 questions out of which 5 questions will have to be attempted. Q1 (a) Write a short note on IoT architecture. 3 (b) What is Software Defined Networking (SDN)? 3 (c) Write a short note on CoAP protocol. 3 (d) Define an actuator and give two examples. 3 (e) What is IoT security? 3 (f) What are cloud service models? 3 Q2 (a) Explain the characteristics of IoT and discuss how these characteristics differentiate IoT systems from traditional internet systems. (b) Explain the IoT protocol stack and discuss the protocols used in Link Layer, Network Layer, Transport Layer, and Application Layer. (c) Describe the NETCONF protocol and YANG data modelling language and explain their importance in IoT system configuration and management. Q3 (a) Explain the role of TCP protocol in IoT communication and discuss its advantages and limitations for IoT networks. (b) Describe the working principle of temperature and humidity sensors used in IoT applications. (c) Explain the Bluetooth communication protocol and discuss its role in short-range IoT device connectivity. Q4 (a) Discuss the Arduino Integrated Development Environment (IDE) and 6 explain the steps involved in writing, compiling, and uploading a program to an Arduino board. (b) Explain the UART communication protocol and discuss how it is used 6 for communication between Arduino/Raspberry Pi and other devices. (c) Explain the basic structure of an Arduino sketch and describe the role 6 of the setup and loop functions with suitable examples. Q5 (a) Explain the characteristics of cloud computing and discuss why cloud 6 platforms are essential for IoT systems. (b) Explain different methods of device data storage in loT systems. (c) Explain an IoT case study smart agriculture and describe how IoT 6 technologies are implemented in that system. Q6 (a) Describe the difference between M2M communication and loT 6 (b) Explain the importance of I/O interfaces in IoT hardware design and 6 discuss how sensors and actuators communicate with microcontrollers. (c) Explain the working principle of MQTT protocol and discuss its 6 communication model for loT device. Q7 (a) Explain the ThingSpeak API and discuss how it is used for IoT data 6 collection and visualization. (b) Discuss the role of Network Function Virtualization (NFV) in loT 6 networks and explain its advantages. (c) Explain the basics of loT system management and discuss the role of 6