BitTorrent is most commonly used for what purpose?

BitTorrent is a peer-to-peer file-sharing protocol that is most commonly used for simultaneously downloading large files. This technology allows users to distribute the workload of downloading a file across multiple peers in the network, which significantly increases download speeds and reduces the burden on any single source.

When a user downloads a file through BitTorrent, they are not only receiving data but also uploading pieces of the file to other users. This decentralized approach enhances the efficiency of distributing large files, such as software programs, videos, and games, making it ideal for situations where large volumes of data need to be shared quickly and reliably.

In contrast, the other options pertain to different purposes that do not align with the primary functionality of BitTorrent. For instance, instant messaging involves a direct connection between users for quick text exchanges, creating web pages focuses on HTML and related technologies, and running applications on remote servers falls under cloud computing—none of which relate to the core capabilities of BitTorrent as a tool for large file transfer.