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web.groovymark@gmail.com
- November 30, 2024
Question 01
Which of the following technologies is primarily used for remote patient monitoring in healthcare?
a) Smart meters
b) Wearable devices
c) Industrial sensors
d) Smart home appliances
Correct Answer: b) Wearable devices
Explanation: Wearable devices enable continuous monitoring of patients' health metrics and can send data to healthcare providers remotely.
Question 02
What type of network is characterized by devices communicating directly with each other without a central server?
a) Star network
b) Mesh network
c) Ring network
d) Bus network
Correct Answer: b) Mesh network
Explanation: In a mesh network, devices can connect and communicate directly with each other, enhancing connectivity and reliability.
Question 03
What is the role of an IoT platform in data management?
a) To serve as a physical storage solution
b) To analyze and visualize data
c) To provide connectivity between devices and applications
d) To replace cloud storage
Correct Answer: c) To provide connectivity between devices and applications
Explanation: IoT platforms facilitate communication between devices and applications, enabling seamless data exchange.
Question 04
In an IoT system, which device acts upon commands received from other devices?
a) Sensor
b) Actuator
c) Gateway
d) Processor
Correct Answer: b) Actuator
Explanation: Actuators are responsible for performing physical actions based on commands received, such as turning on lights or adjusting temperatures.
Question 05
What type of data is typically collected by environmental sensors in smart cities?
a) User preferences
b) Financial transactions
c) Air quality measurements
d) Social media interactions
Correct Answer: c) Air quality measurements
Explanation: Environmental sensors are used to monitor factors such as air quality, temperature, and humidity in urban areas.
Question 06
Which protocol is commonly used for low-power wide-area network (LPWAN) communications?
a) Bluetooth
b) Zigbee
c) LoRaWAN
d) Wi-Fi
Correct Answer: c) LoRaWAN
Explanation: LoRaWAN is designed for long-range communications with low power consumption, making it suitable for IoT applications.
Question 07
What is the main advantage of using fog computing in IoT applications?
a) Increased data latency
b) Centralized data processing
c) Reduced network congestion
d) Higher costs
Correct Answer: c) Reduced network congestion
Explanation: Fog computing processes data closer to the source, alleviating congestion on the main network and improving response times.
Question 08
Which of the following best describes the purpose of a digital twin in IoT?
a) A backup of data
b) A real-time simulation of a physical object
c) A network security tool
d) A physical model of an object
Correct Answer: b) A real-time simulation of a physical object
Explanation: A digital twin is a virtual representation of a physical object or system, used for monitoring and optimization.
Question 09
What is the primary function of a data lake in IoT?
a) To store structured data only
b) To analyze data in real-time
c) To store vast amounts of raw data in its native format
d) To enforce data security policies
Correct Answer: c) To store vast amounts of raw data in its native format
Explanation: A data lake allows for the storage of unstructured and structured data in its original form for future analysis.
Question 10
Which technology can provide real-time traffic updates and route optimization?
a) Smart meters
b) GPS tracking
c) Wearable devices
d) Smart refrigerators
Correct Answer: b) GPS tracking
Explanation: GPS tracking systems can deliver real-time traffic information and help optimize routes based on current conditions.
Question 11
What is the function of a smart home hub?
a) To increase energy consumption
b) To manage and control various smart devices
c) To provide internet connectivity
d) To serve as a backup power supply
Correct Answer: b) To manage and control various smart devices
Explanation: Smart home hubs enable the integration and control of multiple smart devices within a home.
Question 12
Which of the following is a primary concern regarding the deployment of IoT devices in public spaces?
a) High costs
b) Limited functionality
c) Privacy and data security
d) Lack of consumer interest
Correct Answer: c) Privacy and data security
Explanation: The deployment of IoT devices in public areas raises significant privacy and data security concerns due to the data they collect.
Question 13
What type of data processing is performed in real-time on streaming data?
a) Batch processing
b) Edge processing
c) Historical analysis
d) Data warehousing
Correct Answer: b) Edge processing
Explanation: Edge processing enables immediate data processing as it is generated, allowing for quicker responses to events.
Question 14
Which of the following technologies helps enhance security in IoT systems by enabling secure communication?
a) Public-key infrastructure (PKI)
b) Static passwords
c) Unencrypted data transfer
d) Default login credentials
Correct Answer: a) Public-key infrastructure (PKI)
Explanation: PKI provides a framework for secure communication, ensuring data integrity and confidentiality in IoT systems.
Question 15
What does the term “interoperability” refer to in the context of IoT?
a) The ability of devices to operate independently
b) The ability of different IoT devices to communicate and work together
c) The performance of devices under various conditions
d) The integration of devices with cloud services
Correct Answer: b) The ability of different IoT devices to communicate and work together
Explanation: Interoperability is essential for creating cohesive IoT ecosystems where devices from various manufacturers can function together.
Question 16
In an IoT ecosystem, what role does a sensor typically play?
a) Receiving data from users
b) Collecting environmental data
c) Executing commands from actuators
d) Analyzing stored data
Correct Answer: b) Collecting environmental data
Explanation: Sensors are designed to gather data from their surroundings, such as temperature, humidity, or motion.
Question 17
What is the purpose of a security operations center (SOC) in an IoT environment?
a) To manage data backups
b) To monitor and respond to security incidents
c) To design new IoT devices
d) To enforce hardware standards
Correct Answer: b) To monitor and respond to security incidents
Explanation: An SOC is responsible for overseeing security measures and responding to any potential threats or breaches in IoT systems.
Question 18
Which of the following describes a potential risk of using IoT devices in smart homes?
a) Improved energy efficiency
b) Enhanced convenience
c) Increased vulnerability to hacking
d) Better user experience
Correct Answer: c) Increased vulnerability to hacking
Explanation: IoT devices in smart homes can be targeted by cyberattacks, leading to potential breaches of privacy and security.
Question 19
What type of technology is typically employed to connect IoT devices over long distances with minimal power consumption?
a) Zigbee
b) Bluetooth
c) LoRaWAN
d) Wi-Fi
Correct Answer: c) LoRaWAN
Explanation: LoRaWAN is specifically designed for long-range communications while maintaining low power usage, making it ideal for IoT applications.
Question 20
What role do APIs play in IoT systems?
a) They serve as a database
b) They facilitate communication between different software applications
c) They store data
d) They secure data
Correct Answer: b) They facilitate communication between different software applications
Explanation: APIs enable different software applications to interact and share data, enhancing functionality in IoT systems.
