September 2008
Beginner
456 pages
11h 41m
English
Content preview from Sams Teach Yourself TCP/IP in 24 Hours, Fourth EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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What Is the Application Layer?
The Application layer is the top layer in TCP/IP’s protocol suite. In the Application layer, you’ll find network applications and services that communicate with lower layers through the TCP and UDP ports discussed in Hour 6, “The Transport Layer.” You might ask why the Application layer is considered part of the stack at all, as the TCP and UDP ports form such a well-defined interface to the network. But it is important to remember that, in a layered architecture such as TCP/IP, every layer is an interface to the network. The Application layer must be as aware of TCP and UDP ports as the Transport layer is and must channel data accordingly.
TCP/IP’s Application layer is an assortment of network-aware software components ...
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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.
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