The answrs I got were wrong.

Exit Suppose that host A sends two segments of sizes 90 and 100 (bytes) to host B via TCP, with initial sequence number 110 (this is also the initial AckNum at B). If both segments are successfully received and acknowledged, then AckNum at the receiver equals 20 . If the first segment is lost but the second segment is received, then AckNum equals 90 . If both segments are successfully received but the acknowledgement of the first segment is lost (acknowledgement of the second segment is received), then NextSeq Num at the sender equals Answer 1: 20 Answer 2: 90 Answer 3