APPLICATION LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During an FTP session the data connection may be opened ____
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Only once
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Twice
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Many times
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NONE
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Explanation:
Detailed explanation-1: -During a typical FTP connection, messages flow back and forth between the FTP client and the server across the control connection (this is the connection usually established on port 21). However, whenever data is transferred, FTP opens a new connection called the data connection.
Detailed explanation-2: -The FTP server establishes two connections between the client and server processes; one connection for control information (commands and responses), and the other connection for the data that is transferred. The FTP server can handle both binary and text files. The files can be transferred in both directions.
There is 1 question to complete.