Describe the difference between passive and active FTP.

What will be an ideal response?


Passive and active are the two ways in which FTP can transfer data. FTP originally used the active process in which a client FTP request used port 21, and an FTP server response used port 20. This mode was a problem for clients behind a NAT router. Therefore they created a different mode, called passive FTP, which works well with NAT routers and is supported by all good FTP clients. With passive mode, the server sends packets back using the ephemeral source port used by the client as the destination port. The server uses another ephemeral port for the source port. You must configure the client for passive mode.

Computer Science & Information Technology

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To implicitly overload the += operator:

10.3 Q4: To implicitly overload the += operator: a. Only the + operator needs to be overloaded. b. Only the = operator needs to be overloaded. c. Both the + and = operators need to be overloaded. d. The += operator cannot be overloaded implicitly.

Computer Science & Information Technology

What is the role of the media access control (MAC) sublayer of the Data Link layer?

What will be an ideal response?

Computer Science & Information Technology

All social networking sites have a specialized audience.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

The default slide layouts are set up in portrait orientation.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology