What is OSI Reference Model -Full Explained
Today, I am going to tell you about What is OSI Reference Model in Networking so if you want to know this in-depth keep reading this article till the end. Open System Interconnection model (OSI Reference Model) has been defined as a conceptual model used in telecommunication and computing systems. The main motive behind the development of this model is to bring about different systems and methods of communication under one standard protocol.
In the Seven Layers Model, the networking system is divided into 7 layers with each layer interacting with the layer below and providing the functions to be used by the above layer.
In the Seven Layers Model, the networking system is divided into 7 layers with each layer interacting with the layer below and providing the functions to be used by the above layer.
- Application - The Seventh layer is of application which the users can see and interact with directly, apps and browser are the prime examples of this. The more simplified way to understand is to know that this layer enables humans and software to interact.
- Presentation - The sixth layer is for translating or formatting the data based either on the syntax or semantics based on what the application is programmed to accept and respond to.
- Session - The fifth layer which is called the session layer is for starting and ending conversations between applications. You must have noticed how authentication is needed before you’re connected to a Wi-Fi network. That’s the work assigned to this layer.
- Transport - The fourth layer is responsible for data transfer between the applications and across the network and also determining the amount of data that is to be sent and where it gets sent.
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