The Beginners Guide to Downloading BitTorrents

2015 | ASIN: B00UASKCXM | English | Publisher: Amazon Digital Services LLC | 44 pages | PDF | 16,7 MB

Many of the communications protocols available such as http (hypertext transfer protocol) and ftp (file transfer protocol) are based on a user requesting a digital file from the Web server and the Web server then responding by providing the entire file to the user. Files exchanged through these protocols are typically constantly available and can be downloaded instantaneously and at any time of the day. The user receives the entire file at once, which can present a problem if the file is unusually large.

The BitTorrent protocol allows individual users to connect to each other one-on-one to transfer digital files instead of relying on a Web server to send the file. BitTorrent file exchanges begin with a user, known as a seed, providing a complete file. The BitTorrent file is broken down into small, manageable parts, and these individual parts are sent to users that have requested this particular file. The activity of a seed uploading a complete file, or archive, and peers downloading pieces of the file from either the seed’s file or another peer’s file is known as swarming. Once a peer receives all the pieces of a file, he or she becomes a seed for that file, and the swarming process continues as more peers request the file. BitTorrent files must be continually uploaded and downloaded in order to remain "active."

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