assume alice. the client, creates a TCP connection with Bob, the server. they exchange data and close the connection. Now alice starts a new connection with Bob by sending a new SYN segment, The server responds with the SYN+ACK segment. However, before Bob rceives the ACK for this connection from alice, a duplicate old ACK segment from alice arrives at Bob'/ site. Can this old ACK be confused with the ACK segment Bob is expecting from alice?