1. (5 points) Consider a short, 108 meter link(propagation rate: 2* 106 m/sec), over which a sender can transmit at a rate of 150 bits/sec in both directions. Suppose that packets containing data are 100,000 bits long, and packets con- taining only control (e.g., ACK or hand- shaking) are 200 bits long. Assume that N parallel connections each get 1/N of the link bandwidth. Now consider the HTTP protocol, and suppose that each downloaded object is 100 Kbits long and that the initial downloaded object contains 10 referenced objects from the same sender. a. Consider parallel downloads using non-persistent connections.What is the total time needed to receive all the objects? b. Now consider a persistent HTTP connection. What is the total time needed to receive all the objects