different between UDP and TCP

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different between UDP and TCP..

Answer / mohammed.mukram

TCP (Transmission Control Protocol) is the most commonly
used protocol on the Internet. The reason for this is
because TCP offers error correction. When the TCP protocol
is used there is a "guaranteed delivery." This is due
largely in part to a method called "flow control." Flow
control determines when data needs to be re-sent, and stops
the flow of data until previous packets are successfully
transferred. This works because if a packet of data is sent,
a collision may occur. When this happens, the client
re-requests the packet from the server until the whole
packet is complete and is identical to its original.

UDP (User Datagram Protocol) is anther commonly used
protocol on the Internet. However, UDP is never used to send
important data such as webpages, database information, etc;
UDP is commonly used for streaming audio and video.
Streaming media such as Windows Media audio files (.WMA) ,
Real Player (.RM), and others use UDP because it offers
speed! The reason UDP is faster than TCP is because there is
no form of flow control or error correction. The data sent
over the Internet is affected by collisions, and errors will
be present. Remember that UDP is only concerned with speed.
This is the main reason why streaming media is not high quality.