Mobile. The League of Assassins was founded by Ra's al Ghul (exactly when is unknown) to be the fang that protects the head (Batgirl #67, 2005).
Key Difference: TCP stands for transport control protocol. It is a connection oriented and reliable protocol and is used for transfer of crucial data. On the other hand, UDP stands for User Datagram Protocol. It is an unreliable and connection-less protocol which is used for services that require fast transmission of data.
TCP/IP. The most fundamental difference between the two is that TCP and HTTP works at different layers, i.e, they have independent (and radically different ) tasks to perform. You can have both protocols in your application, you can have either of the two or you can have none.