Lukas' Notes

networks

Layers

1

Definition

Data Link Layer

The data link layer enables communication within a local network.

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Internet

Definition

Network Layer

The network layer enables communication across independent networks.

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Transport

Definition

Transport Layer

The transport layer provides end-to-end communication services for applications.

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Application

Definition

Application Layer (Layer 7)

The application layer of the OSI model is the topmost layer, acting as he interface between users and applications and the network.

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Footnotes

  1. 192.019 Introduction to Security