assume the tcp round-trip time, rtt, is currently 30 msec. now we are sending a 15 kb file over this tcp connection. however, the tcp connection is not very reliable and for every 4 packets the acknowledgments come in after 26, 32, and 24 msec. , and the fourth packet somehow gets lost. what will be the tcp window size on every step. calculate then show in a graph. assume a tcp packet can carry maximum 1500 byte data