Which of the following protocols utilize SSH and TCP over port 22 for secure communication? (Choose two.)

SFTP (SSH File Transfer Protocol) is a subsystem of the SSH protocol that provides encrypted file transfer and remote file management entirely over a single SSH session on TCP port 22. SCP (Secure Copy Protocol) also uses SSH as its transport layer, encrypting data in transit and authenticating via SSH credentials or keys on the same TCP port 22. Both protocols inherit SSH's encryption and authentication, making them distinct from legacy FTP variants.

FTP uses TCP ports 20 (data) and 21 (control) and transmits credentials and data in cleartext with no SSH involvement.

TFTP (Trivial File Transfer Protocol) uses UDP port 69 and has no encryption or authentication whatsoever.

FTPS (FTP Secure) wraps FTP in TLS/SSL, using TCP port 990 (implicit) or 21 (explicit), and does not use SSH.

SMTP is an email transfer protocol that uses TCP port 25 (or 587/465 for submission) and is unrelated to SSH or file transfer.