May 2015
Beginner to intermediate
118 pages
2h 29m
English
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The OSI model
To understand how packets—which are the bits of information that travel from one machine to another—run networks, it's a good idea to have a basic idea of the Open Systems Interconnection (OSI) model. This is a conceptual way to think about how networks work on different layers. It's easy to understand that physically, networks are just pieces of hardware with electrical signals running across them; it's actually much more difficult to conceptualize the logical networks that developers and network operations staff (as well as computers) work with.
The simplest explanation is that different protocols and bits of information work on different layers of the model, and work off of each other. The following diagram briefly explains which ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.