Part I: Introduction to Networking
This first part of the book introduces the fundamentals of the most important topics in TCP/IP networking. Chapter 1 provides a broad look at TCP/IP, introducing the common terms, big concepts, and major protocols for TCP/IP. Chapter 2 then examines local-area networks (LAN), which are networks that connect devices that are located near each other; for instance, in the same building. Chapter 3 then shows how to connect those LANs across long distances with wide-area networks (WAN) with a focus on how routers connect LANs and WANs to forward data between any two devices in the network.
Chapter 1: Introduction to TCP/IP Networking
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