Networking

The Open Systems Interconnection (OSI) model is a conceptual framework used to understand and implement network communications by dividing different functions into seven distinct layers.

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Human-computer interaction layer

Decides the format of data. Also is where data encryption and decryption occurs

Maintains connections and is responsible for controlling ports and sessions

Transmits data using transmission protocols such as TCP and UDP

Decides which physical path the data will take

Defines the format of data on the network

Transmits raw bit stream over the physical medium