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| Today, we're talking about the OSI model. How many layers are there? | |
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| Very good. The layers go in this order: Application, Presentation, Session, Transport, Network, Data Link and Physical. | |
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| What's an easy way to memorize them? | |
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| Well, use a mnemonic going top to bottom or bottom. Here's an example. All People Seem To Need Data Processing. | |
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