9. suppose host a sends three tcp segments back to back to host b over a tcp connection. the first segment has sequence number 110; the second has sequence number 150; the third has sequence number 200. (1) how many bytes of data are in the three segments respectively? (2) suppose that the second segment is lost but the first and third segments arrive at b. in the next segment that host b sends to host a after the third segment from a arrives at b, what will be the acknowledgment number?

Acknowledgment number will be 90. since the first segment is lost. The acknowledgment number shows which byte in the stream is expected to come next and, consequently, which bytes have been received. This makes it possible for the original sender to ascertain which of its supplied segments have been received and which ones require retransmission.What are acknowledgement numbers?The sequence number of the first Byte of first segment  = 90 and The sequence number of the first Byte of second segment  = 110which implies, The sequence number of the last Byte of first segment  = 109.(A) Therefore number of Bytes in the segment is (109-90+1 = 20)(B)Acknowledgment number will be 90. since the first segment is lostThe sequence number of the subsequent byte that the receiver anticipates receiving is the acknowledgement number. All data bytes received prior to (but excluding) byte number x are acknowledged by the receiver using the receiver ack'ing sequence number x.Received packets are acknowledged by sending back a packet with the ACK flag set when computers connect using TCP. These acknowledgements can be transmitted along with data that is transferred in the other direction thanks to the TCP protocol. Some protocols only send one acknowledgement for each data packet.You can thank each person who assisted you with your research in the acknowledgements section of your thesis. It usually follows the contents page at the beginning of your thesis and shouldn't really be there.To learn more about acknowledgment refer to:https://brainly.com/question/14316067#SPJ4