In this video, you’ll learn how the OSI reference model compares to the TCP/IP model, which is the actual framework used in real-world networking. The lesson explains how the OSI model’s seven layers are mapped into the four layers of the TCP/IP model, showing how functions like application services, transport, internetworking, and physical delivery are aligned.

You’ll also understand the practical differences: while the OSI model is mainly theoretical and used for learning, the TCP/IP model is implementation-based and forms the backbone of the modern Internet. Protocols such as HTTP, TCP, UDP, IP, and Ethernet are discussed in relation to their placement in each model.

By the end of this video, you will clearly see how OSI provides a structured way to study networking, while TCP/IP represents the real-world protocol stack that enables global communication.