BitTorrent
BitTorrent is a protocol that underpins the practice of peer-to-peer file sharing and is used for distributing large amounts of data over the Internet. BitTorrent is one of the most common protocols for transferring large files and it has been estimated that, collectively, peer-to-peer networks have accounted for approximately 43% to 70% of all Internet traffic (depending on geographical location) as of February 2009. Most of this peer-to-peer traffic is likely from BitTorrent, after the demise of LimeWire.
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