Clients often use a "rarest-first" strategy, prioritizing pieces that are least available in the "swarm" (the group of peers sharing the file) to ensure overall file health.
A refers to the BitTorrent protocol’s method of breaking a large file into small, uniform "pieces" (typically 32 KB to 16 MB) that are downloaded non-sequentially from multiple sources. This decentralized approach allows users to download and upload different parts of a file simultaneously, significantly increasing speed and efficiency. How Fragmentation Works Fragmented Torrent Download
rarest-first piece selection method - Feature Requests - Forums Clients often use a "rarest-first" strategy
The process relies on a distributed network rather than a central server: Fragmented Torrent Download