Which of the following TCP ports are used by FTP? (Select TWO).

The correct answer is A. 20 B. 21. FTP uses two ports by default: 21 for sending commands, and 20 for sending data. For instance if you said "FTP <ServerName>" it would make the attempt using port 21. If the session was established, port 20 would be using for the data. Note: These are the default ports which is…

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(26 responses)

A
88% (23)
C
4% (1)
D
8% (2)

Explanation

FTP uses two ports by default: 21 for sending commands, and 20 for sending data. For instance if you said "FTP <ServerName>" it would make the attempt using port 21. If the session was established, port 20 would be using for the data. Note: These are the default ports which is what I assume you were asking. A server administrator can however configure FTP to use whatever port

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#FTP#port 20#port 21#well-known ports

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