FTPS is used when SFTP is not applicable. Which ports does it use?

FTPS is used when SFTP is not applicable. Which ports does it use?

• A. 21 and 22
• B. 21 and 23
• C. 21 and 990
• D. 22 and 80

Answer: (C)

FTPS, which stands for File Transfer Protocol Secure, uses port 21 for the control connection and typically port 990 for the secure data connection when using implicit SSL/TLS. The control connection is responsible for command and response exchanges, while port 990 is used for data transfer security established from the outset with an SSL/TLS handshake. Option C accurately highlights the correct ports associated with FTPS, where port 21 is well-known historically for FTP, and port 990 is designated for secure connections under FTPS. Understanding these port assignments is essential for configuring firewalls and setting up secure connections for file transfers in a networked environment. The other provided choices do not align with the standard port designations for FTPS. Port 22 is commonly associated with SFTP, which is different from FTPS, and ports 23 and 80 do not typically serve functions related to FTPS connections. Therefore, the identification of ports 21 and 990 is critical to correctly implementing FTPS in secure file transfer scenarios.

FTPS, which stands for File Transfer Protocol Secure, uses port 21 for the control connection and typically port 990 for the secure data connection when using implicit SSL/TLS. The control connection is responsible for command and response exchanges, while port 990 is used for data transfer security established from the outset with an SSL/TLS handshake.

Option C accurately highlights the correct ports associated with FTPS, where port 21 is well-known historically for FTP, and port 990 is designated for secure connections under FTPS. Understanding these port assignments is essential for configuring firewalls and setting up secure connections for file transfers in a networked environment.

The other provided choices do not align with the standard port designations for FTPS. Port 22 is commonly associated with SFTP, which is different from FTPS, and ports 23 and 80 do not typically serve functions related to FTPS connections. Therefore, the identification of ports 21 and 990 is critical to correctly implementing FTPS in secure file transfer scenarios.