Suppose an ISPs fiber network connects 20 users on one end and 20 servers on the other end. Each user can handle data with max data rate of 1Gbps, and each server can also operate at the max data rate of 1Gbps. The fiber network has a max data rate of 10Gbps. Assume the ISP divides the bandwidth evenly between all users, and there are 20 actively connection with one user and one server at each connection. Answer the questions below: a. What is the end-to-end throughput for each connection? b. Following the answer above, has this throughput reach the max data rate of the user and server yet? c. What is the bottleneck for the end-to-end throughput? d. In order for the user and server to reach their max data rate of 1Gpbs, what change needs to be brought to the network?