1) Prove the summation of the coefficients in the SRTT recursive formula is 1. SRIT(K+1)=(1-0)RIT(K+ 1)+a(1-a)RTT(K)+...+a" (1-a)RIT(1)+a+1 KIT (0)(hint :1+x+x²++"=<1) 4.5 and SRTT(0) = 10s, calculate the a. Assume that all measured RTT values are is and there is no packet loss. Explain the advantage and disadvantage to select a large or small a. 2) If SRTT(12) = 3) For a TCP entity opens a connection in the slow start phase. If the congestion window is cund = 16. How many RTT does it take to allow cwnd to go up greater than 100, assume that there is no packet drop and all packet are acknowledged before timeout. ite