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Understanding Network Protocols: HTTP, TCP/IP, UDP

Mar 15, 2025
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Introduction

Network protocols are the fundamental rules that govern how data is transmitted across networks. They're like the languages that allow different devices to communicate effectively. This article dives deep into three of the most critical protocols in modern system design: HTTP, TCP/IP, and UDP, explaining how they work, their key differences, and when to use each.

Network Protocol Stack

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TCP/IP: The Foundation of Internet Communication

What is TCP/IP?

The Transmission Control Protocol/Internet Protocol (TCP/IP) is the fundamental suite of protocols that powers the internet. It's not a single protocol but rather a collection of protocols that work together in layers. The two main components are:

  1. TCP (Transmission Control Protocol): Handles the reliable delivery of data

  2. IP (Internet Protocol): Manages addressing and routing of data packets

How TCP/IP Works

TCP/IP follows a…

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