1.a) A client and a server are communicating over a TCP connection. The distance between the client and server is 8,000 km and the speed of propagation is 2x106 km/s. The client wants to download a 1 GB file from the server. Packet size is 1000 Bytes including a 40 Byte TCP+IP header. Assume that all delays other than the propagation delay are negligible while calculating RTT. i) (6 pts) What is the minimum window size, in Bytes, required in order to achieve a download rate of 10 Mbps at the application layer? II) (6 pts) What is the maximum throughput that can be achieved in the above file transfer if TCP window scaling is not used? 1.b) (10 pts) Suppose that a file composed of 18 segments, each with a size of 1250 Bytes, are transferred over a TCP connection with a round-trip delay of 5 ms and transmission rate of 10 Mbps. Assume that no loss event occurs during the file transfer. The slow start threshold at the beginning of the TCP connection is infinitely large. Ignore all delays other than the propagation delay while calculating RTT. How long does it take after the connection is established until final ACK is received? 1.a) A client and a server are communicating over a TCP connection. The distance between the client and server is 8,000 km and the speed of propagation is 2x106 km/s. The client wants to download a 1 GB file from the server. Packet size is 1000 Bytes including a 40 Byte TCP+IP header. Assume that all delays other than the propagation delay are negligible while calculating RTT. i) (6 pts) What is the minimum window size, in Bytes, required in order to achieve a download rate of 10 Mbps at the application layer? II) (6 pts) What is the maximum throughput that can be achieved in the above file transfer if TCP window scaling is not used? 1.b) (10 pts) Suppose that a file composed of 18 segments, each with a size of 1250 Bytes, are transferred over a TCP connection with a round-trip delay of 5 ms and transmission rate of 10 Mbps. Assume that no loss event occurs during the file transfer. The slow start threshold at the beginning of the TCP connection is infinitely large. Ignore all delays other than the propagation delay while calculating RTT. How long does it take after the connection is established until final ACK is received