What is the feature of the UDP protocol?

UDP (User Datagram Protocol) is a transport layer protocol with the following features:

Connectionless: UDP does not require a prior connection setup between sender and receiver. Data is sent in the form of independent packets (datagrams).
Low overhead: Due to the absence of connection establishment, acknowledgment, and flow control mechanisms, UDP has significantly lower overhead and latency compared to TCP.
Unreliable delivery: UDP does not guarantee packet delivery, order, or the absence of duplicates. Packets may be lost, duplicated, or arrive out of order.
High speed: Due to the lack of control mechanisms, UDP provides higher data transfer speeds, making it suitable for applications where speed is more important than reliability.
Datagram-oriented: Data is transmitted in the form of datagrams, each packet is processed independently of others.
No control mechanisms: UDP does not implement flow control, congestion control, or retransmission of lost packets. These functions, if needed, must be implemented at the application level.

UDP is suitable for applications where the loss of individual packets is acceptable or where low latency is important, such as: