tcp/udp difference and tcp/ip model layers

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TCP is connection-oriented, reliable protocol while UDP is connectionless, unreliable protocol. TCP/IP model has 4 layers - Application, Transport, Internet, Link.

TCP is connection-oriented, ensures data delivery in order, and provides error-checking and retransmission of lost packets (e.g. email, web browsing)
UDP is connectionless, faster but less reliable, used for real-time applications where speed is more important than accuracy (e.g. video streaming, online gaming)
TCP/IP model has 4 layers: Application (e.g. HTTP, FTP), Transport (e.g. TCP, UDP), Internet (e.g. IP), Link (e.g. Ethernet)
Each layer in TCP/IP model performs specific functions and communicates with adjacent layers to transmit data efficiently

tcp/udp difference and tcp/ip model layers

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