Regarding the FTP protocol, is it correct in the description below?

Question

Kefash White · Accepted Answer

In ftP-style, the client completes the initialization of the TCP session for control and data

Kefash White · Answer

In ftP Activee, the server side tells the client which port it expects to send data on by commanding "PORT"

Kefash White · Answer

FTP always uses a TCP session to transmit control information and data information

Kefash White · Answer

FTP always uses the TCP port to establish a data session and ICP port 21 to establish a control session

Kefash White · Answer

FTP always uses TCP port 21 to establish a data session and TCP port 20 to establish a control session

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