🌐 The Building Blocks of the Network World: L2 and L3 Switches and Their Features

Imagine this, my love… You live in an apartment building. There’s an elevator, stairs, neighbors. Everyone greets each other, but unless someone organizes who goes where, and which apartment belongs to whom, the whole place would be chaos. That organizer is the switch, the “traffic cop” of the network! 🚦 But switches also level up […]

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🎬 Server Room: Classic Movie Set of Computers – Detailed Technical Guide

Imagine, my love… you step into that cold, silent, and orderly server room 🥶❄️. But in reality, it’s like a classic movie set 🎥: every device is a character, every cable a stage prop, every packet an extra actor. The roles of these “actors” aren’t ordinary—each plays a critical role in a system engineer’s daily […]

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🧵 UTP and STP Cables: The Battle of the Invisible Heroes of Networking

Imagine this, my love… We’re always talking about internet speed: “Fiber or VDSL? 5G maybe?” But deep inside the heart of the internet, there are two quiet siblings working behind the scenes: UTP (Unshielded Twisted Pair) and STP (Shielded Twisted Pair) cables. Both form the backbone of Ethernet. They are the real heroes connecting your […]

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🌐 Single Mode vs Multi Mode Fiber Optic Cables: Two Different Paths of Light

Just imagine, my love… At the heart of the internet, it’s not copper wires running around, but light itself. Yes, light! 🌈Fiber optic cables carry data packets at the speed of light, just like Formula 1 cars racing on the track. 🚀 But here’s the secret: it all depends on whether the cable is Single […]

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🌐 LAN and WAN Networks: The Two Big Stars of the Networking World

In computer engineering, there are certain concepts that at first sound like something out of a parallel universe. “LAN” and “WAN” are two of those. But the secret is simple: they’re both networks—just with different coverage areas, speeds, and functions. Think of it this way: But let’s move beyond metaphors, because the technical side is […]

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🌐 Network Protocols: The Building Blocks of the Internet 🧱💻

Imagine this… You go online, play a YouTube video, stalk a bit on Instagram, binge a show on Netflix… Everything runs smoothly. But what’s happening behind the scenes? 🤔The answer: the unsung heroes called network protocols are hard at work! 🦸‍♂️ 📬 What Is a Network Protocol? Network protocols are a set of rules that […]

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The Cornerstone of Computer Networks: The OSI Reference Model 🧱🌐✨

Imagine this: you’re at home using the internet, watching YouTube, or sending a message on WhatsApp. But behind the scenes, there’s an invisible orchestra working layer by layer. And the conductor of this orchestra is the OSI Reference Model. 🎶💻 “What’s OSI?” you might ask. It stands for Open Systems Interconnection. In other words, it’s […]

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🌐 The Concept of Ports: The Mysterious Doors of the Internet

Imagine this… There’s an apartment building with hundreds of flats. You want to visit the flat on the 7th floor, number 23, but at the entrance there’s only one main door. 🤔 That main door is like the IP address of your computer. But if you don’t specify, “I want to go to flat 23,” […]

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Using ARP and ICMP: Essential Tools in Network Communication 🕸️📡

The internet looks like pure magic from the outside. You open Google, play a video on YouTube, send a message on WhatsApp… But how does your computer actually deliver that message to the other side? Behind the scenes, there are two small yet very important heroes: ARP and ICMP. To understand them, we first need […]

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🌍 WAN Terminology: Key Concepts of Wide Area Networks

Imagine you’re sitting at home, sipping your coffee, watching cat videos on YouTube. ☕🐱 Meanwhile, the person who uploaded that cat video is in Australia. So how does that video reach you? That’s where WAN (Wide Area Network) steps in. In short, WAN = the Internet itself. 🌐 But the world of WAN has so […]

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