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<p><b>Reliable Data Transfer</b> is a topic in computer networking concerning the transfer of data across unreliable channels.  Unreliability is one of the drawbacks of <a href="page.php?w=Packet_switching">packet switched</a> networks such as the modern internet, as <a href="page.php?w=packet_loss">packet loss</a> can occur for a variety of reasons, and delivery of packets is not guaranteed to happen in the order that the packets were sent.  Therefore, in order to create long-term data streams over the internet, techniques have been developed to</p><p>
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