Yet the Wyatt Earp killed Johnny Ringo claim can be found in four separate sources (Forrestine Hooker, John Flood, Frank Lockwood, and Frederick Bechdolt), and each person had contact with Wyatt Earp or stated he told them the story.
A TCD is any sign, signal or marking that involves traffic. A speed limit sign is a type of TCD. A TCD ticket is a lesser violation carrying only 2 points. Even the lowest level speeding violation carries 3 points and the stigma of a speeding violation.
FTP is a TCP based service exclusively. There is no UDP component to FTP. FTP is an unusual service in that it utilizes two ports, a 'data' port and a 'command' port (also known as the control port). Traditionally these are port 21 for the command port and port 20 for the data port. The confusion begins however, when we find that depending on the mode, the data port is not always on port 20.