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Answer the following question based on this assumption: 7: Host A and B are communicating over...

Answer the following question based on this assumption:

7: Host A and B are communicating over a TCP connection, and Host B has already received from A all bytes up through byte 126. Suppose Host A then sends two segments to Host B back-to-back. The first and second segments contain 80 and 40 bytes of data, respectively. In the first segment, the sequence number is 127, the source port number is 302, and the destination port number is 80. Host B sends an acknowledgment whenever it receives a segment from Host A.

a. In the second segment sent from Host A to B, what are the sequence number?

source port number?

destination port number?

b. If the first segment arrives before the second segment, in the acknowledgment of the first arriving segment

what is the acknowledgment number?

source port number?

destination port number?

c. If the second segment arrives before the first segment, in the acknowledgment of the first arriving segment,

what is the acknowledgement number?

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If Host A and B communicate over TCP connection, and Host B receives 126 bytes from A. First and second segments contain data size of 80 and 40 bytes, respectively. First segment of sequence number = 127. Source port number = 302. Destination port number = 80 1.) Sequence No = First segment(sequence no) + destination port no   = 127+80   = 207   Sequence no = 207   Source port no = 302   Destination port no = 80  2.) Acknowledgement no = 207   Source port no = 80   Destination port no = 302 3.) Acknowledgement no =127
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