What is TCP/UDP ? Explain the differences & their aplications?

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Accepted Answer

TCP/UDP are transport layer protocols used for communication between devices on a network.

TCP (Transmission Control Protocol) is a reliable, connection-oriented protocol that ensures data is delivered error-free and in order. It is used for applications that require high reliability such as email, file transfer, and web browsing.
UDP (User Datagram Protocol) is a connectionless protocol that does not guarantee delivery or order of data. It is used for applications that require speed and efficiency such as video streaming, online gaming, and VoIP.
TCP uses a three-way handshake to establish a connection between devices while UDP does not.
TCP is slower than UDP due to the overhead of error checking and retransmission.
Applications can use either TCP or UDP depending on their specific requirements.

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