Top IoT Interview Questions (2024)

1. What is IoT?

2. What are the top 5 IoT devices?

3. How do Internet of Things (IoT) devices work?

4. Is Alexa an IoT?

5. What is embedded devices in Internet of Things (IoT)?

6. What is IoT Decision Framework and it's layers?

7. What are the key decision areas in any IoT product?

8. What is IoT Architecture?

9. What are smart objects in IoT?

Q: What is IoT?
Ans:

The Internet of Things (IoT) refers to physical objects (thing) embedded with sensors, processing capabilities, software, and other technologies which connect to and exchange data with other devices and systems via the Internet or other communication networks.

Q: What are the top 5 IoT devices?
Ans:

Below are the top IoT devices:

1. Google Home Voice Controller
2. Amazon Echo Plus Voice Controller
3. August Doorbell Cam
4. August Smart Lock
5. Foobot

Q: How do Internet of Things (IoT) devices work?
Ans:

1. Many IoT devices can be controlled via an app on a smartphone. You can communicate with your smart thermostat using your smartphone.
2. IoT devices include sensors as well as mini-computer processors that use machine learning to respond on the data collected by the sensors. IoT devices are essentially mini computers that are linked to the internet and are susceptible to attacks and hacking.
3. Machine learning is a type of artificial intelligence that enables computers to learn without the need for programming.

Q: Is Alexa an IoT?
Ans:

Alexa, the speech assistant from Amazon, is one of the more comprehensive IoT services available, as it can operate more smart home devices than Google Assistant.

Q: What is embedded devices in Internet of Things (IoT)?
Ans:

In most cases, an embedded device system runs as a single application. These devices, on the other hand, can connect to the internet and communicate with other network devices.

Microcontrollers and microprocessors are two types of embedded systems. An integrated circuit (IC) is present in both of these types.

Q: What is IoT Decision Framework and it's layers?
Ans:

The IoT Decision Framework clarifies the places where we must make decisions and guarantees that all of your strategic decisions are consistent.

Since the product or service communicates through networks, the IoT decision framework is considerably more significant, as it passes through five layers of technology complexity.

1. Device Hardware
2. Device Software
3. Communications
4. Cloud Platform
5. Cloud Application

Q: What are the key decision areas in any IoT product?
Ans:

According to the IoT decision framework, any IoT device must consider six essential decision areas.

1. User Experience (UX)
2. Data
3. Business
4. Technology
5. Security
6. Standards & Regulations

Q: What is IoT Architecture?
Ans:

The IoT architecture is a key technique to design the many aspects of IoT in order for it to deliver services through networks and meet future needs. The key stages (layers) of IoT which provide strategy for IoT architecture are listed below.

1. Sensors/Actuators: Sensors and actuators are network-connected devices that can emit, accept, and process data. These sensors or actuators can be connected via wired or wireless connections. GPS, electrochemical, gyroscope, RFID, and other technologies are included. Sensor gateways are required for the majority of sensors. A Local Area Network (LAN) or a Personal Area Network (PAN) can be used to connect sensors and actuators.
2. Sensors and actuators produce significant amounts of data, which necessitates the use of high-speed gateways and networks to convey the information. This network can be a Local Area Network (LAN, such as WiFi, Ethernet, and so on), or a Wide Area Network (WAN) (WAN such as GSM, 5G, etc.).
3. Edge IT refers to the hardware and software gateways that evaluate and pre-process data before sending it to the cloud in IoT architecture. If the data read from the sensors and gateways does not change from its previous reading value, it is not sent to the cloud, saving the data.
4. Data center/Cloud: The Data Center or Cloud is part of the Management Services category, which processes data through analytics, device management, and security controls. Aside from security controls and device management, the cloud sends data to end-user applications including retail, healthcare, emergency, environment, and energy, among others.

Q: What are smart objects in IoT?
Ans:

A smart object ( (also known as Intelligent Objects)) is one that improves the interaction between other smart objects as well as people.