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Understanding the OSI model is critical as it helps diagnose and troubleshoot network problems. Each layer of the model is independent, but interacts with the layers directly above and below it. When a network problem occurs, you can examine the problem layer by layer, which can be more manageable and efficient.
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How is data sent over the internet? What does that have to do with the OSI model? How does TCP/IP fit into this? 7 Layers in the OSI model are: 1. Physical Layer 2. Data Link Layer 3. Network Layer 4. Transport Layer 5. Session Layer 6. Presentation Layer 7. Application Layer Source: ByteByteGo
