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Explaining the Difference Between TCP and UDP Protocols

Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) are two widely used transport layer protocols in computer networking. Here are some key differences between TCP and UDP:

• Reliability: TCP is a connection-oriented protocol that ensures reliable delivery of data by establishing a connection, sequencing packets, acknowledging received data, and retransmitting lost packets if necessary. UDP is a connectionless protocol that does not guarantee reliable delivery, as it does not establish a connection or provide error checking or packet sequencing.
• Overhead: TCP has higher overhead due to its additional features for reliable delivery, including header information for sequencing, acknowledgments, and flow control. UDP has lower overhead as it is a simpler protocol without the need for these features.
• Usage: TCP is commonly used for applications that require reliable data transmission, such as web browsing, email, file transfer (e.g., FTP), and remote access (e.g., SSH). UDP is used for applications that can tolerate some data loss or latency, such as streaming media, online gaming, VoIP, and DNS.

Overall, the choice between TCP and UDP depends on the specific requirements of the application and the trade-offs between reliability and performance.

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