Seven-layer OSI Model

24

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Separate layers set specifications for:

bulletPhysical connections
bulletMethods of transforming data
bulletPaths for data flow
bulletData flow between networks
bulletAccess to resources within a network

Physical Layer (1)

Data link layer (2)

Network layer (3)

Transport layer (4)

Session layer (5)

Presentation layer (6)

Application layer (7)

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