M4R5 IoT Security MCQ
Practice M4R5 IoT security MCQs online. Free IoT security MCQ practice test for M4R5 exam. Test your knowledge of IoT security challenges, threats, and solutions.
IoT Security MCQ Practice - M4R5 Exam
Master IoT security for O Level M4R5 with our comprehensive MCQ practice. Our IoT security MCQs cover security challenges, threats, vulnerabilities, and solutions in IoT systems.
IoT Security MCQ Practice Questions
Showing 20 MCQs with answers and explanations from M4R5 IoT module
Who coined the term "Internet of Things"?
Correct Answer: C
Kevin Ashton
Explanation:
Kevin Ashton coined the term in 1999 while working at Procter & Gamble.
Which layer is responsible for data collection in IoT?
Correct Answer: C
Perception Layer
Explanation:
The Perception (or Sensing) layer consists of sensors and actuators that collect data.
What is the primary purpose of an IoT Gateway?
Correct Answer: B
To bridge the gap between IoT devices and the cloud
Explanation:
Gateways handle protocol translation and connectivity between local devices and the internet.
What is a sensor?
Correct Answer: B
A device that detects changes in the environment and sends data
Explanation:
Sensors convert physical parameters like temperature into electrical signals.
Which device is used to convert electrical signals into physical movement?
Correct Answer: B
Actuator
Explanation:
Actuators allow IoT systems to interact with the physical world (e.g. opening a valve).
Which protocol is commonly used for low-power IoT communication?
Correct Answer: B
MQTT
Explanation:
MQTT (Message Queuing Telemetry Transport) is a lightweight messaging protocol for IoT.
What does LPWAN stand for?
Correct Answer: A
Low Power Wide Area Network
Explanation:
LPWAN is designed for long-range communication with low power consumption.
What is the "Thing" in IoT?
Correct Answer: C
Any physical object with a sensor and internet connectivity
Explanation:
Anything from a toaster to a jet engine can be a "thing" in IoT.
What is 'Edge Computing' in IoT?
Correct Answer: B
Processing data near the source of data generation
Explanation:
Edge computing reduces latency by processing data on the device or local gateway.
Which wireless technology is best for short-range low-power IoT applications?
Correct Answer: B
Zigbee
Explanation:
Zigbee is a popular short-range mesh network protocol for smart homes.
What is IIoT?
Correct Answer: B
Industrial Internet of Things
Explanation:
IIoT refers to the application of IoT in industrial sectors like manufacturing.
What is the maximum range of Bluetooth Low Energy (BLE)?
Correct Answer: B
100 meters
Explanation:
BLE is designed for short-range communication with minimal energy usage.
Which of the following is a common IoT development board?
Correct Answer: A
Arduino
Explanation:
Arduino and Raspberry Pi are standard hardware platforms for IoT prototyping.
What does 'M2M' communication mean?
Correct Answer: B
Machine to Machine
Explanation:
M2M refers to direct communication between devices without human intervention.
Which sensor is used to measure the tilt or orientation of an object?
Correct Answer: B
Accelerometer
Explanation:
Accelerometers and Gyroscopes detect motion and orientation.
What is a 'Smart City'?
Correct Answer: B
A city that uses IoT to manage assets and resources efficiently
Explanation:
Smart cities use IoT for traffic management energy use and waste control.
Which protocol uses a 'Publish/Subscribe' model?
Correct Answer: C
MQTT
Explanation:
MQTT uses a broker to manage messages between publishers and subscribers.
What is the role of the Cloud in IoT?
Correct Answer: B
To provide scalable storage and massive data processing
Explanation:
The cloud handles the heavy lifting of data analytics and long-term storage.
What is 'SoC' in IoT hardware?
Correct Answer: A
System on Chip
Explanation:
SoC integrates all components of a computer into a single integrated circuit.
Which of these is NOT a core component of IoT?
Correct Answer: D
Human intervention
Explanation:
IoT aims for automated communication with minimal human intervention.