O Level IoT Paper January 2026
NIELIT O Level M4-R5 Internet of Things (IoT) Previous Year Question Paper
Are you preparing for the NIELIT O Level M4-R5 exam in 2026? The January 2026 Question Paper is now the most critical resource for candidates. As the final module of the O Level course, M4-R5 (Internet of Things and its Applications) tests your knowledge of sensors, microcontrollers (Arduino), and IoT security. Use these official papers to master the MCQ-based CBT pattern.
Download M4-R5 IoT Solved Question Paper PDF
Access the latest January 2026 M4-R5 paper and other previous sessions to understand the exam's difficulty level.
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How to Download: Click on the "M4-R5 Question PDF" link below and select "Download."
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Exam Insights: The 2026 papers show an increased focus on MQTT/CoAP protocols and Arduino C programming logic.
M4-R5 Exam Pattern & Unit-wise Weightage
The M4-R5 exam follows the updated Computer-Based Test (CBT) format. To secure an 'S' grade, focus on the following syllabus weightage:
| IoT Topic / Unit | Weightage | Essential Keywords to Study |
| Introduction to IoT | 10% | IoT Architecture, Characteristics |
| Things & Connections | 20% | OSI Model, IPv6, Gateway, Ethernet |
| Sensors, Actuators & MCUs | 25% | Arduino UNO, GPIO, Analog vs Digital |
| Building IoT Applications | 25% | Arduino IDE, C Sketch, Libraries |
| Security & Future of IoT | 10% | Encryption, Botnets, DDoS Attacks |
| Soft Skills | 10% | Personality Development, Interview Skills |
CBT Theory Exam Instructions:
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Mode: 100% Online Multiple Choice Questions (MCQs).
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Questions: 100 items.
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Time Limit: 90 Minutes.
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Marking: 1 mark for each correct answer; No Negative Marking.
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Passing Criteria: Minimum 33% in theory, 33% in practical, and 50% aggregate.
M4-R5 IoT: Frequently Asked Questions (FAQs)
Q. Why should I solve the M4-R5 January 2026 paper?
Ans. The O Level M4-R5 January 2026 paper provides the most recent look at how NIELIT frames questions on modern IoT protocols and Arduino coding, helping you build a high-scoring test-taking strategy.
Q. What hardware is most important for the M4-R5 Practical?
Ans. Most practical questions focus on the Arduino UNO board, breadboard wiring, and interfacing sensors like DHT11 (Temperature/Humidity) or LDR (Light).
Q. Where can I find M4-R5 Solved MCQs in Hindi and English?
Ans. You can download the NIELIT O Level M4-R5 PDF with bilingual (Hindi/English) explanations from our download section above.
Benefits of Attempting O Level Previous Year Paper:
- By completing the O Level Previous Year Question Paper, you will gain a general understanding of the O Level test.
- You will learn how to answer various types of questions in the test by completing the O Level question papers.
- The NIELIT O Level past year papers can help you understand the level of complexity of the test.
- You will enhance your time management and accuracy abilities by answering O Level question papers!
- You will learn about the errors that students make when answering exam questions and how to avoid them in the future.