I will guide you through the foundations of networking. You will understand the OSI and TCP/IP models, how data gets packaged into packets and frames, and what happens when data is too big to fit. By the end, you will trace a packets journey from application to wire and back. These models give you a shared vocabulary for troubleshooting. When something breaks, you will know exactly which layer to investigate.
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$ curl repovive.com/roadmaps/network-design/network-foundations/intro
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