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Top IoT Interview Questions & Answers

  • September 11, 2022
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Meet the Author : Mr. Bharani Kumar

Bharani Kumar Depuru is a well known IT personality from Hyderabad. He is the Founder and Director of Innodatatics Pvt Ltd and 360DigiTMG. Bharani Kumar is an IIT and ISB alumni with more than 18+ years of experience, he held prominent positions in the IT elites like HSBC, ITC Infotech, Infosys, and Deloitte. He is a prevalent IT consultant specializing in Industrial Revolution 4.0 implementation, Data Analytics practice setup, Artificial Intelligence, Big Data Analytics, Industrial IoT, Business Intelligence and Business Management. Bharani Kumar is also the chief trainer at 360DigiTMG with more than Ten years of experience and has been making the IT transition journey easy for his students. 360DigiTMG is at the forefront of delivering quality education, thereby bridging the gap between academia and industry.

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  • Explain Components that Exist in the Internet of Things?

    IoT Ecosystem has 4 Major Components

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    • IoT Sensors/ Devices

      Sensors collect data from the environment or any object. An IoT device consists of a sensor along with some Hardware, which can process or compute data coming from sensors and further communicates information from one place to another place through the internet or any other communication medium.

    • Connectivity and Communication

      Connectivity plays a vital role in an IoT System. It consists of two parts:

      Devices have to transfer the data collected to other devices or the cloud. In IoT, the layer that connects devices is named as network layer and we have diverse communication technologies to connect devices like Wi-Fi, Blue-tooth, Zigbee, Z-Wave, LoRa, cellular network, etc.

      After Connecting to Network, devices communicate data using protocols like HTTP, MQTT, CoAP, WebSocket, etc.

      • IoT Devices / Sensors
      • Connectivity and Communication
      • Data Processing
      • User Interface
      connectivity and communication - digital marketing
    • Data Processing

      Data collected by IoT devices through sensors have to be analyzed to extract valuable insights from it and to make decisions based on that. Cloud offers Analytics Platform, Storage, and other back end services.

      Cloud offers IoT Platforms, which connects devices to the cloud and also provides Edge computing platforms where part of analytics or pre-processing can be deployed on the device on-premises.

    • Applications/ User Interface

      Sometimes, the user has to interact with devices, For that, we need a user-centric layer which performs various tasks for user and controls devices based on user input.

  • How do you Connect Devices in the IoT Network?

    An IoT network is a network of interconnected devices or devices connected to the cloud, such a network of devices communicates with each other, implements actions, take decisions, and provides manageable secure infrastructure.

    There are many options for connecting devices and transmitting data between devices and Web/mobile applications. Some are Short Range and some are Long.

  • What are the Desired Characteristics an IoT System Should Have?

    Desired Characteristics:

    Dynamicity: IoT devices should adapt to changing contexts. IoT Devices once they are deployed they should be able to change their mode of operation based on changes in the environment they deployed.

    Zero Configurations (self-configuration): The self-configuration feature of Plug & Play allows a large number of devices to be connected with each other. Zero configuration supports the decentralized growth of IoT applications that are very simple and easy. The most desirable feature of IoT applications is the Auto- up-gradation of end devices.

    Unique Identity: Each IoT device should have a unique identifier and identity –individual addressable in a network of the device.

    Semantic Inter-Operability: Semantic interoperability helps IoT objects to understand each other, various devices have the ability to access and interpret the data. IoT devices are supposed to support numerous interoperable common protocols.

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    Integration into the Information Network: IoT end devices are interconnected and integrated into a common network –this allows them to exchange data with other devices and systems.

    Ambient and Collective Intelligence: IoT offers a special application where it can connect to billions, trillions to offer Collective intelligence though it has individual intelligence.

    desired characteristics - digital marketing

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