January 28, 2020

Top 20 Internet of Things (IOT) Interview Questions & Answers

Ques: 1. Why does the need of Internet of Things (IoT) arises?

Ans: The real value of the IoT is not about making the lights turn on or off when the vehicle reaches its parking bay, rather the data that the connected devices gather about its users. The data collected later can allow the consumers, businesses, and connected cities to work in a more efficient manner. 

Internet of Things (IoT) is a network of interconnected objects that uses embedded technology to sense and communicate with their internal states or the external environments. IoT is all about connecting the objects (devices) over the Internet and enabling them to interact with us and other objects.

Ques: 2. What are the main components of the Internet of Things (IoT) system?

Ans: IoT has three main components are as follows:

  • Devices embedded with sensors. 
  • Network connectivity 
  • Data storage application/system

Ques: 3. How does IoT differ from the IIoT?

Internet of Things(IOT): In this system, the connection is between devices and gadgets that are used by average consumers in their day-to-day life. Examples could be washing machines, refrigerators, electrical bulbs, etc. These devices are connected to the Internet and work according to the way they are programmed to and prompted to.

Industrial Internet of Things (IIoT): With IIoT, massive industrial items and systems are connected via the Internet to carry out functions without human intervention. The alarm systems in hospitals or the automatic shutting off of switches in industrial plants are examples of IIoT.

Ques: 4. Do you have any relatable examples of the way in which IoT impacts our everyday lives?

Ans: Since IoT’s primary aim is to connect devices and make them function intuitively according to the needs of the situation; they are used in a variety of devices that we use in our daily lives, which help us coordinate functions better. We no longer have to spend extra time to manually handle these devices, which means a lot of time saved.

Since connectivity with other devices is at the heart of the concept of IoT. IoT - enabled devices not only carry out their function in isolation, but also coordinate with others in the network to make work a lot more efficient than earlier devices could. For instance, while a standalone alarm clock can only wake you up, in an IoT ecosystem, based on your early morning traits, IoT could also heat the coffee decoction for you or put the geyser on.

Ques: 15. What importance does cybersecurity have for IoT?

Ans: Cybersecurity is a matter of serious concern wherever the Net is involved. So, with its heavy reliance on the Internet, the IoT is sure to make cybersecurity a very crucial area of its work. 

Corporations and governments will have to be on their toes in anticipating and preventing cyber attacks on the IoT. This calls for a very strongly coordinated, robust response from all the players involved because a disruption in any link in the chain can throw the whole ecosystem out of gear.

Ques: 16. Assess the impact the IoT will have on the healthcare sector

Ans: The IoT is extremely well-suited for the healthcare sector. With its ability to coordinate large volumes of data seamlessly and across devices; the IoT can be a great facilitator for the healthcare industry. At a micro level, it will help to generate a lot of data from the health-conscious user, such as pulse, blood pressure, calorie count, etc. from individual users. At the macro level, it will make tele-medicine a lot more efficient by being able to coordinate data across devices in far-flung locations.

Ques: 17. What do you understand by the Internet of Everything and what are the elements that go into it?

Ans: The Internet of Everything (IoE) can be understood as an extension of the IoT. While the IoT connects devices with one another, IoE aims at connecting devices with people and help them take smart decisions by coordinating with them. These are some of the elements that go into IoE:

Human beings: The IoE facilitates higher and smoother coordination between humans and devices such as social networks, computers, healthcare gadgets, teaching aids, etc.

Procedure: This aspect of the IoE seeks to automate processes that go into most things managed by humans, ranging from handheld devices to large industrial manufacturing processes.

Things: This is the set of devices or things used by humans that connect to the Net and help share information. sensors, actuators, certain types of medical devices or meters can be examples of things in IoE.

Information: Obviously, this is at the center of the IoE, as much as it is in the IoT. Algorithms function smartly to help make sense of the huge loads of data that devices and other things generate.

Ques: 18. What influences will the internet of things (IoT) have on monetary growth?

Ans: Several monetary analyses have anticipated that the IoT will make contributions extensively to monetary growth over the following decade, however, the predictions range substantially in magnitude. The modern-day international iot market has been valued at approximately $2 trillion, with estimates of its predicted fee over the following five to ten years varying from $4 trillion to $11 trillion.

Ques: 19. What are the elements of the Internet of Everything?
Human beings: People will continue to attach through gadgets, like smartphones, computers, and drugs, in addition to social networks, which includes FaceBook and LinkedIn.

Procedure: This includes evolving era, business, organizational and different tactics in order to be wished in an effort to control and, to a massive extent, automate the explosive growth in connections and the resultant accumulation, analysis and conversation of information with a view to be inevitable inside the internet of the entirety.

Things: It consists of many physical objects like sensors, meters, actuators, and other styles of gadgets that can be connected to any item, that are or can be capable of connecting to the community and sharing statistics. These items will sense and supply more facts, respond to manipulate inputs, and provide more statistics to assist human beings and machines make choices.

Information: Today, devices commonly accumulate statistics and circulate it over the internet to a valuable source, in which it is analyzed and processed. Such statistics is predicted to surpass today’s biggest social media data set by means of every other order of importance.

Ques: 20. What is Bluetooth Low Energy (BLE) Protocol for an Internet of Things (IoT)?
Ans: Nokia originally introduced this protocol as wibree in 2006. Additionally known as Bluetooth smart this protocol presents the same range coverage with a good deal of decreased strength intake because of the unique Bluetooth. It has comparable bandwidth with narrow spacing as utilized by Zigbee. Low electricity latency and decrease complexity makeable greater appropriate to include into low-cost microcontrollers.


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  2. Hey there! Thanks for sharing this insightful list of IoT interview questions. It's crucial for tech enthusiasts to stay updated on these topics. For those interested in the intersection of IoT and healthcare, here's an interesting read on healthcare data storage: https://www.cleveroad.com/blog/healthcare-data-storage/. It delves into the challenges and solutions in securely managing the wealth of data generated in the healthcare IoT landscape.