Hello, to make up for me not blogging yesterday, this is a second post about my progress (and it's been two days since the start of school). Anyways, today I've been learning about the OSI Seven Layer Model system. Although this is not widely used, it is great to know for a tech, and I would like to try to set up one of these networks at some point. I learned a good acronym to remember the seven layers "Please Do Not Throw Sausage Pizza Away" --- which represents: Physical, Data Link, Network, Transport, Session, Presentation, Application. In the textbook a hypothetical situation was made, where two people needed to exchange data between two PC's. To do this I need several items: UTP Cabling, a hub/switch, and an NIC (Network Interface Card). Tomorrow, I hope to learn how to use these properly in the OSI 7-Layer system. Until tommorow, tschuss (German for "bye")!
Cisco used to make such a big deal about the 7 layer OSI model, now even they have backed off on it, since it isn't really implemented in practice, but is more of a conceptual model.
ReplyDeleteWhat is in fact implemented in practice is the 4 layers of the IP protocol suite (see https://en.wikipedia.org/wiki/Internet_protocol_suite). *That* you will want to learn well, since it is a practical tool.
Update: Looking over the course options, ITN 101 (http://www.nvcc.edu/academic/coursecont/summaries/ITN101.pdf) may be the best match. Let's talk today in class.
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