Hosts A and B are communicating over a TCP connection, and Host B has already received from A all bytes up through byte 200. Suppose Host A then sends two segments to Host B back-to-back. The first and second segments contain 50 and 100 bytes of data respectively. In the first segment, the sequence number is 201. Host B sends an acknowledgment whenever it receives a segment from Host A.

If the first segment arrives before the second segment, in the acknowledgment of the first arriving segments, what is the ACK number? (5 points)

If the second segment arrives before the first segment, in the ACK of the first arriving segment, what is the ACK number? (5 points)