a) [5 marks] Why does the transport layer provide two major protocols, UDP and TCP? What...

 

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a) [5 marks] Why does the transport layer provide two major protocols, UDP and TCP? What is the purpose of each protocol? Describe the differences between TCP and UDP. b) [5 marks] Describe the three-way handshake protocol that TCP uses to establish a connection. Which TCP flags are used in this exchange? Draw a time diagram to illustrate the sequence of steps. E) [5 marks] Describe the TCP Sliding Window Protocol? Since TCP works perfectly well without sliding window, what is the purpose of sliding window? a) [5 marks] Why does the transport layer provide two major protocols, UDP and TCP? What is the purpose of each protocol? Describe the differences between TCP and UDP. b) [5 marks] Describe the three-way handshake protocol that TCP uses to establish a connection. Which TCP flags are used in this exchange? Draw a time diagram to illustrate the sequence of steps. E) [5 marks] Describe the TCP Sliding Window Protocol? Since TCP works perfectly well without sliding window, what is the purpose of sliding window?