This illustration depicts the various layers of stack communication used in a Web client connection. On the client side, from the top down, the stack includes the following layers:

• Web Browser

• Presentation - HTTP or FTP

• Network Protocol - TCP/IP

On the server side, from the top down, the stack includes the following layers:

• RDBMS and Oracle XML DB

• Presentation -- HTTP or FTP

• TCP/IP Oracle Protocol Support

• Transport Protocol - TCP/IP