Which describes FTP behavior?

FTP (File Transfer Protocol) uses two distinct connections: a control connection (port 21) for commands and responses, and a data connection (port 20, or dynamically assigned in passive mode) for the actual file transfer. This separation allows commands to be issued and acknowledged independently of ongoing data transfers. Incorrect options: FTP requires user credentials (username and password) for authentication, unless anonymous FTP is configured. FTP uses TCP for reliable data transfer, which handles error detection and retransmission, not block numbers. UDP port 69 is used by TFTP (Trivial File Transfer Protocol), not FTP. FTP uses TCP ports 20 and 21.