OPrep

M4-R5.1 · O Level online test

IoT online test

Internet of Things and its Applications

Connect sensors, actuators and a microcontroller into a small IoT story: protocols, Arduino, serial data, applications and security.

48 theory hours · 72 practical hours · 4 credits

What you should be able to do

  • Describe IoT building blocks, levels and communication models
  • Choose sensors and actuators for a feedback-based system
  • Sketch Arduino sketches that read input and drive output
  • Spot security and privacy issues in connected devices

Topic drills

Unit 1

IoT ideas, devices and protocols

Characteristics of things, ecosystem, design steps, functional blocks and common protocols.

16 questions · about 19 minutes

Start unit test

Unit 2

Things and connections

Control loops, TCP/IP vs OSI, wired and wireless links, and the flow of an IoT app.

16 questions · about 19 minutes

Start unit test

Unit 3

Sensors, actuators and microcontrollers

Physical quantities, motors, Arduino-class boards and how they talk to the world.

16 questions · about 19 minutes

Start unit test

Unit 4

Arduino and serial communication

IDE, sketches, pins, analogRead, digitalWrite and the serial monitor.

17 questions · about 20 minutes

Start unit test

Unit 5

IoT applications

Farms, homes, energy, retail and industry examples that map sensors to decisions.

16 questions · about 19 minutes

Start unit test

Unit 6

Security and the connected future

Threats on tiny devices, updates, privacy and where IoT is heading.

16 questions · about 19 minutes

Start unit test

Timed papers

mock

M4-R5.1 Mock Test A

A 50-question timed paper drawn across every unit in IoT.

50 MCQs · 60 minutes

Open paper

mock

M4-R5.1 Mock Test B

A second 50-question mix so you can sit another paper without repeating Mock A.

50 MCQs · 60 minutes

Open paper

exam

M4-R5.1 Exam simulator

Closest match to the theory sitting: up to 100 MCQs and a two-hour clock.

97 MCQs · 120 minutes

Open paper

paper

M4-R5.1 Practice paper 1

A fixed 40-question set written in previous-paper style, with a shorter clock.

40 MCQs · 48 minutes

Open paper

paper

M4-R5.1 Practice paper 2

A second fixed paper focusing on application and mixed-unit items.

40 MCQs · 48 minutes

Open paper