SK0-005 Question #604: Real Exam Question with Answer & Explanation

The correct answer is A: 20. 20: Port 20 is used for the data transfer in FTP (File Transfer Protocol) when in active mode. It is necessary for FTP communication. 21: Port 21 is used for the command/control connection in FTP. This port must be enabled for establishing an FTP session.

Server administration

Question

A technician is configuring a server that will only be used for FTP. For security purposes, all other ports will be disabled. Which of the following ports will need to be enabled? (Choose two.)

Options

Explanation

20: Port 20 is used for the data transfer in FTP (File Transfer Protocol) when in active mode. It is necessary for FTP communication. 21: Port 21 is used for the command/control connection in FTP. This port must be enabled for establishing an FTP session.

Topics

#FTP#Port Numbers#Network Services#Server Configuration

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