Which capability does TFTP provide?

TFTP (Trivial File Transfer Protocol) is a simple, connectionless protocol primarily used for transferring configuration files and boot images to diskless devices. It lacks authentication and encryption, making it unsuitable for secure transfers. Devices like network routers or IP phones often use TFTP to load their operating system or configuration when they power on, especially if they don't have local storage. The other options are incorrect because TFTP does not provide authentication, encryption, or secure file access; those capabilities are typically handled by more robust protocols like SCP, SFTP, or HTTPS.