●。 Echo service o Echo server responds to each client o Alternates between reading and writing o Closes the connection when it encounters an end-of-file condition o Iterative or concurrent? SIE NTUT. Taiwan17 CSIE, NTUT, Taiwan Echo Service  Echo server responds to each client  Alternates between reading and writing  Closes the connection when it encounters an end-of-file condition  Iterative or concurrent?