Network Basics - What is a network? // FREE CCNA 200-301 course

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This free CCNA 200-301 course introduces the fundamentals of networking, explaining what a network is, its required size, and the various types. It covers the client‑server model, IP addressing, DHCP, DNS, MAC addresses, HTTP vs HTTPS, and demonstrates simple network setups with real hardware. The video includes practical examples and a step‑by‑step walkthrough of network components and protocols. 0:00 - Overview 00:22 - Introduction 00:44 - Understanding Networks 03:20 - The Client-Server Model 04:16 - Server Example 05:33 - IP Addressing & DHCP Explained 06:32 - DNS & MAC Addresses 07:35 - HTTP vs HTTPS 08:55 - Client Example in Action 09:17 - Life Before Networks 10:36 - The Simplest Network Setup 11:42 - Example of a Simple Network 12:34 - Communication Protocols Breakdown 14:08 - More on Networks 14:40 - What is a NIC? Examples of NICs 16:41 - MAC Addresses and Device Identity 18:04 - Conclusion & Outro