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.
With the UDP server, there is no welcoming socket, and all data from different clients enters the server. through this one socket. With the TCP server, there is a welcoming socket, and each time a client initiates. a connection to the server, a new socket is created.