OSI Layer 6 – Presentation

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Layer 6 is the Presentation layer.

• transforms data between the format required for the network and the format required for the application
• E.g., used for character set conversion, such as between American Standard Code for Information Interchange (ASCII) and Unicode

Info

• conceived as supporting data compression and encryption
• but, in practical terms, encryption is implemented by devices and protocols at lower layers of the stack or simply within a homogenous Application layer