IoT architecture and levels

IoT architecture and levels



  • IoT architecture shows the building blocks of an IoT system and how they are connected to collect, store and process data.
  • IoT architecture also contains device and user management components to provide stable and secure functioning of things and control user access issues.
  • The most basic architecture is a three-layer architecture which introduced in the early stages of research in this area.
  • But it is not sufficient for research on IoT because research often focuses on finer aspects of the internet of things.


Perception(recognition) Layer

  • This layer is the physical layer, which has sensor for sensing and gathering information about the environment.
  • One of the important function of this layer is that it linked and converts the information gathered by the sensors into digital signals which are further transferred to the Network layer.
  • Example : The smart phone itself has many type of sensors embedded in it such as the location sensor(GPS), movement sensor(accelerometer, gyroscope), camera, light sensor, microphone, proximity sensor, and magnetometer.

Network Layer

  • The Network layer is responsible for connecting to other smart things, network devices, and servers.
  • The function of this layer are to receive and transmit the digital data to the processing (middleware) layer.
  • These data are transmitted onto the middleware layer over some transmission medium such as WI-FI,4G and GSM etc along with protocol like IPv4,DDS etc.

Processing Layer

  • The data that are received from the network layer is processed in this layer.
  • This layer uses the technologies like cloud computing, big data processing etc. 
  • The processing layer is also known as the Middleware Layer.

Application Layer

  • This layer is responsible for delivering application specific services to the user.
  • It define various application in which the IoT can be deployed, based on the processed data.
  • Example:
    • Smart phone, smart watch etc.
Business Layer

  • This layer acts as the manager for the application and services of the IoT









Qus. 1 : The RFID is a useful IoT architecture layer of the perception layer for

  1. Object identifying
  2. Tracking
  3. Exchanging useful information
  4. All of the above
Qus. 2 : The______is the "Central Nervous System" that takes care of global services in the IoTs.

  1. Perception layer
  2. Network layer
  3. Application layer
  4. None of the above
Qus. 3 : The RFID is a useful IoT architecture layer of the perception layer for:

  1. Object identifying
  2. Tracking
  3. Exchange useful information
  4. All of the above
Qus. 4 : Full form of 6LoWPAN is:

  1. IPv6 over Low Power Wireless Personal Area Network
  2. IPv4 over Low Power Wireless Private Area Network
  3. IPv6 over Low Energy Wire Personal Area Network
  4. IPv4 over LongRange Wireless Private Area Network
Qus. 5 : The core element is operated by :

  1. PaaS
  2. IoT Service Provider
  3. SaaS
  4. IaaS
Qus. 6 : Perception Layer of IoT architecture is also known as

  1. Recognition Layer
  2. Application Layer
  3. Network Layer
  4. Processing Layer
Qus. 7 : Which layer of IOT architecture is known as Middleware Layer

  1. Application Layer
  2. Processing Layer
  3. Transport Layer
  4. Perception Layer
Qus. 8 : Which layer of IOT Architecture is acts as the manager for the application

  1. Transport Layer
  2. Processing Layer
  3. Perception Layer
  4. Business Layer
Qus. 9 : Which is the lower layer in the IOT Architecture

  1. Smart Devices
  2. Gateway
  3. Cloud
  4. Service Management
Qus. 10 : Active Engagement Features of IOT means ?

  1. IoT makes the connected technology, product, or services to active engagement between each other.
  2. It makes the complete failure of the system.
  3. IoT makes things smart and enhances life through the use of data.
  4. None of the above
Qus. 11 : The core element of architecture of smart city is.

  1. Mobile unified service
  2. Urban Application plateform
  3. Management center
  4. Integrated Information Provider
Qus. 12 : _____is a community that is working together to establish an IOT architecture.

  1. Eclipse IOT
  2. Red Hat
  3. Intercloud
  4. Bot 2 Bot
Qus. 13 : Which of these is a part of the Sensing Layer of the IOT Service Oriented Architecture.

  1. Service Integration
  2. Service repository
  3. Business Logic
  4. Data Sensing and actuation protocols
Qus. 14 : Which of the following is IOT functional block, under logical design of IOT?

  1. Communication
  2. Device
  3. Service
  4. All of the mentioned
Qus. 15 : A typical IoT system design which refers to the individual node devices and their protocols that are utilized to create a functional IoT ecosystem, is termed as

  1. Logical design
  2. Physical design
  3. Both of these
  4. None of these
Qus. 16 : The process flow of four stage IoT solution Architecture includes

  1. Sensor/actuators, data acquisition, edge IT, data center/cloud
  2. data acquisition, Sensor/actuators, edge IT, data center/cloud
  3. Sensor/actuators, data acquisition, data center/cloud, edge IT
  4. Sensor/actuators, edge IT, data acquisition, data center/cloud

Programs

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