TCP/IP Model

The TCP/IP model is a framework that organizes how data travels across the internet. It has four main layers: the Link layer handles local network connections; the Internet layer directs data between different networks using addresses; the Transport layer ensures complete and reliable data transfer between devices; and the Application layer provides common services and interfaces, like browsing websites or sending emails. Together, these layers allow devices to communicate efficiently, securely, and accurately over complex networks, forming the foundation of internet communication.