Modern networks are mostly composed of TCP/IP and Ethernet
It is a protocol focused on practicality rather than theory
TCP/IP vs OSI 7 Layers
TCP/IP vs OSI Model: What's the Difference?
OSI 7 Layers consists of 7 layers, while the TCP/IP model is divided into 4 layers
OSI 7 Layers distinguished between data flow layer and application layer, separating the parts that application developers and network engineers should consider, and the TCP/IP model makes this distinction even more apparent
The upper 3 layers are combined into a single application layer, and Layers 1 and 2 of OSI 7 Layers, namely the physical layer and data link layer, are grouped into a single network layer
