Consider the operation of rdt 3.0 protocol shown in Figure 3. Figure 3: Operation of rdt3.0 protocol. (a) Name the pipelined algorithm as illustrated in Figure 3. Justify your answer. [3m] (b) Suppose the sender and receiver windows size are N=4 and sequence number goes from 0 to 15. Draw a rectangle on Figure 4 a to illustrate the position of the sender and receiver windows over this sequence space at time t1,[4m] Recciver \begin{tabular}{|l|l|l|l|l|l|l|l|l|l|l|l|l|l|l|l|} \hline 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 & 14 & 15 \\ \hline \end{tabular} Figure 4a (c) Draw a rectangle on Figure 4b to illustrate the position of the sender window over this sequence space at time t2. 2m]