Definitions for teachers by teachers

UDP

User Datagram Protocol.  A protocol or language that transfers data without keeping it in a sequenced order.  Best used for networks transferring only a small amount of data or for sending broadcasts.
Relevance:  There is no relevance to Lincoln Elementary District 27 at this time.

UDP - this is the most confusing of terms. The User Datagram Protocol is an alternative to the Transmission Control Protocol (TCP). Like the TCP, the UDP uses the IP to get data (datagram) from one computer to another. But the UDP does not divide the data into packets and reassemble them at the reception end. UDP does not sequence data as it arrives. Application programs that use UDP must be able to be sure that all the data has arrived and that it is in the right order. Network applications that want to save processing time because they have small data units prefer UDP to TCP. The UDP provides port numbers to distinguish different user requests, and can check to see that all the data has arrive intact. The IP layer does not provide these two functions.

by Michael Marassa

User Datagram Protocol- a protocol used for data transfering.  It is used in place of the TCP when the delivery is not needed to be reliable.  Video and audio traffic use UDP.  It is a connectionless protocol, meaning that it can send data without hooking up to a receiver. Most protocols require a sender and receiver connection.  The UDP is not reliable in that the message is sent and someone may or may not retrieve it.  It is useful in broadcasting- which simply means that more than one person may retrieve the data.

A few more specifics on UDP can be found HERE.

by Liz Sanford

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