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UDP (User Datagram Protocol) sockets communicate by way of discrete messages called datagrams, which are sent as packets. UDP sockets are connectionless. Communication processes do not have a logical connection with each other and therefore the delivery of their data is unreliable. The datagrams is lost or duplicated, or they might not arrive in the same order in which they were sent.
The following sections describe the UDP socket application and the &SOCKET verbs you would use.
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