Consider the three-way handshake used in a TCP connection setup. Suppose that an old SYN segment from station A arrives at station B, requesting a TCP connection. Explain how the three-way handshake procedure ensures that the connection is rejected. Now suppose that an old SYN segment from station A arrives at station B followed a bit later by an old ACK segment from A to a SYN segment from B. Is this connection also rejected? Explain.