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A+ OSI Model

TermDefinition
Physical layer Bits over a physical medium (wires, cables, etc.)
Data link layer How data moves in the physical link of a network (measured in frames).
Network layer Decides which path data will take (packets).
Transport layer Data transmitted using TCP and UDP.
Session layer Maintains the connection between communicating ports sending data.
Presentation layer Ensures data is in the correct format, and where encryption occurs.
Application layer Human-computer interaction layer just below the application itself, where applications can access network services.
Mnemonic Please Do Not Teach Stupid People Acronyms
Created by: yiriz
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