Tutorial 4: TCP and UDP

Exercise 01:

1) What is the main difference between UDP and TCP?

2) Why does UDP exist? Could we not have used IP instead to ensure the transfer of data?

3) Which fields in the UDP/TCP header change during packet routing.

4) What does the use of the TCP transmission window allow? What are its particularities?

5) Can a TCP module handle multiple connections simultaneously? If yes, how could we

distinguish these connections?

Exercise 02:

Complete the sequence and acknowledgment numbers: