The 7 Levels of OSI Models

Описание: The 7 Levels of OSI Models

Most people “know” the OSI model, but only at the “cables and WiFi” level.
This video fixes that.

In “The 7 Levels of OSI Models”, we go layer by layer:
from Level 1 – Physical (The Cable Guy) and Level 2 – Data Link (The Address Book), to Level 3 – Network (The Router Guy) and Level 4 – Transport (The Reliability Engineer),
then up to Level 5 – Session (The Connection Manager),
Level 6 – Presentation (The Translator),
and finally Level 7 – Application (GOAT Status) — where HTTP, DNS, email, APIs and real networked apps actually live.

You’ll learn what each layer does, how they stack, and how a single request flows through all 7.
If you’ve ever said “it’s a network issue” without knowing which layer… this one’s for you.

#OSImodel #Networking #TCPIP #CyberSecurity #networkengineers


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Disclaimer: At Tech in a Teacup, we do our best to research, fact-check, and simplify complex tech topics into clear explanations. Still, technology evolves quickly, and occasional mistakes, mispronunciations, or oversights may happen. Our content is for educational purposes only and should not replace official documentation or professional advice. If you spot an error or have a correction, please share it kindly in the comments, we’re always learning and improving, video by video. Thanks for being part of this journey with us!