Which of the following is a connectionless protocol?

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Accepted Answer

UDP - UDP (User Datagram Protocol) is a connectionless protocol. It sends data without making a connection first and does not check if the data is received correctly.


TCP: Connection-based and reliable
HTTP: Works on top of TCP
FTP: Also uses TCP for file transfers
UDP: Sends data quickly without setup


UDP is used when speed is more important than reliability, like in video streaming, online gaming, or voice calls. It is fast but does not guarantee delivery or order of data.

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