Chapter 3 注：括弧中标题号为第四版教材中对应的习题号1. (R14)Suppose Host A sends two TCP segments back to back to Host B over a TCP connection. The first segment has sequence number 90; the second has sequence number 110.a. How much data is in the first segment?b.Suppose that the first segment is lost but the second segment arrives at B. In the acknowledgment that Host B sends to Host A, what will be the acknowledgment number?答：a90,109=20bytesback number=90，对第一个报文段确认2. (R15)True or false?a.
