Final answer:
TFTP uses UDP/69 for its services, offering a simpler and less complex protocol compared to FTP, suitable for small file transfers.
Step-by-step explanation:
The Trivial File Transfer Protocol (TFTP) utilizes UDP/69 for its file transfer services. Unlike FTP, which uses TCP, TFTP is a simpler protocol that operates on top of the User Datagram Protocol (UDP), making it less complex but also less reliable for data transmission compared to FTP. Since it uses minimal network overhead, TFTP is often employed for transferring small files such as when bootstrapping network devices or for simple file transfers in environments where the enhanced features of FTP are not required.