1. Way back in 1983, telephone companies came together to create the Open System Interconnections Model. This OSI Model is a common way to think about networks and security – from the software application layer all the way down to the physical infrastructure. This tutorial will help you understand each of the network layers and the relationships between them. (10 minute read): https://www.freecodecamp.org/news/osi-model-computer-networking-for-beginners/
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