What is the main difference between the OSI and TCP/IP models?

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Accepted Answer

OSI is a reference model, TCP/IP is used in real-world networking - The main difference between the OSI and TCP/IP models is how they are used and what they represent.

The OSI model is a reference model. It is mainly used for teaching and understanding how network communication works. It has 7 layers and helps people learn about each step of data transmission.

The TCP/IP model is a practical model that is actually used in real-world networking. It has 4 layers and is the foundation of how data is sent and received on the internet and other networks.

Key points:

OSI is a guideline used for understanding networks
TCP/IP is the working model used on real devices and systems
TCP/IP combines some OSI layers for simpler design
Most modern networks follow the TCP/IP model


Understanding both models helps in learning networking concepts and how real-world communication works.

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