It’s really important that you learn the TCP/IP model for the CCNA exam. You need to understand the protocols that we use in modern networks today like TCP, UDP, IPv4, IPv6, SSH, HTTPS, Ethernet and more.
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// MENU //
0:00 – Welcome & Overview
0:29 – Understanding the OSI Model
1:34 – What Are Standard Interfaces?
3:23 – RFCs (Requests for Comments) Explained
5:07 – Visualising the OSI Model
5:57 – TCP/IP vs OSI: Key Differences
9:22 – What You Really Need to Know for the Exam
9:50 – Devices & Protocols by Layer
11:47 – Breaking Down What Each OSI Layer Does
17:40 – Which Devices Operate at Each Layer?
20:25 – Deep Dive: Layer 3 (Network Layer)
21:13 – Live Phone Demo: MAC vs IP Addresses
24:52 – Transport Layer: End-to-End Communication
26:50 – How Applications Use the OSI Model
29:35 – Final Thoughts & Recap
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