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In the above diagram, we can see packet capture of the TCP header (Packet no 184212). On the right hand side of the diagram, we can verify the TCP header Format. Format The segment consists of a header of 20 to 60 bytes, followed by data from the application program. The header is 20 bytes if there are no options and up to 60 bytes if it contains options.   Source port number This is the port number used by the process running on the source host. It is 16 bits long, which mea