Which of the following is a difference between TFTP and FTP?

TFTP is not inherently slower than FTP - for small transfers with no overhead it can be faster; FTP is generally faster for large authenticated transfers.

TFTP has no authentication or encryption mechanism, making it significantly less secure than FTP, which at least supports username and password authentication.

This reverses the correct protocol assignments - TFTP uses UDP, not TCP, and FTP uses TCP, not UDP.

TFTP (Trivial File Transfer Protocol) uses UDP port 69 because it is designed for simple, low-overhead transfers such as booting network devices where a full TCP handshake is unnecessary. FTP uses TCP ports 20 and 21 to ensure reliable, ordered, and error-checked delivery of files.