What are the ports for FTPS?

FTPS, which stands for File Transfer Protocol Secure, uses the TCP ports 989 and 990 to establish secure connections for file transfer. Specifically, TCP 989 is used for the FTPS data channel, while TCP 990 serves for the control channel. This distinction is essential in understanding how FTPS operates to enhance the standard FTP with an added layer of security through SSL/TLS encryption.

Other port numbers listed in the choices correspond to different protocols or functionalities. For instance, TCP 20 and TCP 21 are used by FTP, where TCP 21 is the control port and TCP 20 is for data. TCP 161 and 162 are used for Simple Network Management Protocol (SNMP) communication, and TCP 22 is associated with Secure Shell (SSH) which also operates secure file transfers but through a different mechanism than FTPS. This context highlights the importance of recognizing the correct ports associated with specific protocols for secure data transfer.