Which TCP port is used for FTP data transfer?

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Multiple Choice

Which TCP port is used for FTP data transfer?

FTP uses two separate connections: a control channel for commands and a data channel for file transfers. The data channel is traditionally established by the server sending the data from its port 20 to the client, which is why port 20 is associated with FTP data transfer in active mode. In passive mode, the data connection uses a server-selected port, but the standard reference for the data transfer port remains 20. So, the port used for FTP data transfer is 20.

FTP uses two separate connections: a control channel for commands and a data channel for file transfers. The data channel is traditionally established by the server sending the data from its port 20 to the client, which is why port 20 is associated with FTP data transfer in active mode. In passive mode, the data connection uses a server-selected port, but the standard reference for the data transfer port remains 20. So, the port used for FTP data transfer is 20.

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