1(a) (3 marks) Suppose a situation where the TCP congestion window is in a congestion avoidance mode, with its slow start threshold set to 4 MSS (where the maximum segment size is 1 kByte). When the TCP congestion window is 12 kBytes a triple duplicate acknowledgement loss occurs. 1. If the next transmission yields a timeout loss, then the next three transmission bursts are all successful, which mode of the TCP congestion-control algorithm will each of the four bursts be in? (i.e. slow start?, congestion avoidance? Or fast recovery?) II. If the next transmission burst yields a timeout loss, then the next three transmission bursts are all successful, what are the congestion window sizes be for each of the four bursts? III. If the next transmission yields a timeout loss, then the next three transmission bursts are all successful, what are the slow start threshold values for each of the four bursts? 1(b) (4 marks) Using your answer to Question 1(a) as an example, discuss what it means when it is said that TCP does bandwidth probing (in your answer be sure to mention slow start, congestion avoidance, fast recovery, time out, and triple duplicate acknowledgement). 1(a) (3 marks) Suppose a situation where the TCP congestion window is in a congestion avoidance mode, with its slow start threshold set to 4 MSS (where the maximum segment size is 1 kByte). When the TCP congestion window is 12 kBytes a triple duplicate acknowledgement loss occurs. 1. If the next transmission yields a timeout loss, then the next three transmission bursts are all successful, which mode of the TCP congestion-control algorithm will each of the four bursts be in? (i.e. slow start?, congestion avoidance? Or fast recovery?) II. If the next transmission burst yields a timeout loss, then the next three transmission bursts are all successful, what are the congestion window sizes be for each of the four bursts? III. If the next transmission yields a timeout loss, then the next three transmission bursts are all successful, what are the slow start threshold values for each of the four bursts? 1(b) (4 marks) Using your answer to Question 1(a) as an example, discuss what it means when it is said that TCP does bandwidth probing (in your answer be sure to mention slow start, congestion avoidance, fast recovery, time out, and triple duplicate acknowledgement)