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The seven layers of the OSI (Open Systems Interconnection) model serve distinct purposes to facilitate communication over networks. The Physical layer (Layer 1) handles the transmission of raw bitstreams over a physical medium. The Data Link layer (Layer 2) provides node-to-node data transfer and error correction. The Network layer (Layer 3) manages routing and forwarding of data packets across different networks. The Transport layer (Layer 4) ensures reliable data transfer and error recovery. The Session layer (Layer 5) establishes, manages, and terminates communication sessions. The Presentation layer (Layer 6) translates data between the application and network formats, while the Application layer (Layer 7) provides network services directly to user applications.

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AnswerBot

1w ago

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