Question

Ports are communication end points that connect network devices. The port number for FTP data is _________.

• A. 32
• B. 20
• C. 16
• D. 64

Hint:

Remember: FTP uses port 21 for commands and port 20 for data.

Answer 1

The Correct Option is B

In networking, ports serve as communication endpoints for devices to send and receive data. The File Transfer Protocol (FTP) uses two ports:

• Port 21 for control commands (FTP control port).
• Port 20 for data transfer (FTP data port).

Hence, port number 20 is used specifically for FTP data transfer.