I found it interesting that ethernet cables had to be insulated and spun and couldn't expand longer than about 1000 feet to not distort the connection.
I also find it interesting how electronics and networks work. How wireless systems can be set up and it all can be controlled through a central system. Fiber optic cables are amazing to me. How light can be recieved through cables and how it is the fast known technology today. The cables across the ocean are amazing also. To put cable that long and that deep in the ocean would take alot of time and alot of cable to lay it all that way.
Focus on basic ideas of components, WAN, LAN, how these communications work.
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