March 2019
Beginner
490 pages
12h 40m
English
book
Learning Python Networking - Second Edition
by José Manuel Ortega, Dr. M. O. Faruque Sarker, Sam Washington
Content preview from Learning Python Networking - Second Edition
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The protocol stack, layer by layer
A protocol stack is organized in such a way that the highest level of communication resides in the top layer. Each layer in the stack is built on the services of the immediate lower layer.
The TCP/IP protocol stack has four layers, as follows:
- Application layer: This layer manages the high-level protocols, including representation, coding, and dialogue control issues. It handles everything related to applications, and the data is packed appropriately for the next layer. It is a user process that cooperates with other processes on the same host or a different one. Examples of protocols at this layer are TELNET, File Transfer Protocol (FTP), and Simple Mail Transfer Protocol (SMTP).
- Transport layer: This ...
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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.