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Roadmap to becoming a developer in 2022
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developer-roadmap/content/roadmaps/102-devops/content/103-networking-protocols/100-osi-model.md

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OSI Model

Open Systems Interconnection (OSI) model is a conceptual model consists of 7 layers, that was proposed to standardize the communication between devices over the network. It was the first standard model for network communications, adopted by all major computer and telecommunication companies in the early 1980s.

Free Content What is OSI Model? OSI Model

TCP/IP Model

TCP/IP model is a practical model consists of 4 layers. The modern Internet is based on this model.

What is TCP/IP Model? OSI vs TCP/IP Model