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 operates at Layer 3 of the TCP/IP stack. TCP is a connection-oriented protocol. TCP provides no error checking. TCP packets are numbered and sequenced so that the destination can reorder packets and determine if a packet is missing.