What exactly is a protocol stack—and why does the entire internet rely on it? In this video, I break down how protocol stacks like TCP/IP work, what the layers do, and why older systems like NetBEUI and IPX/SPX didn’t survive. Whether you’re learning networking basics or just curious how your browser talks to Google, this is for you.

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The New CCNA, CCNP, CCIE certifications ex…
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