TFTP is a simple, connectionless file transfer protocol commonly used for booting devices and transferring firmware to network hardware, especially when low overhead and simplicity are more critical than security. TFTP's simplicity and lack of session management features allow for quick and easy transfer of files to devices that may not support more complex file transfer methods. In comparison, while protocols like FTP, SCP, and FTPS can also transfer files, they are more complex and are not characterized by their use cases in environments where devices may not support secure transfer capabilities or more elaborate protocols.