Network Engineering (Remember to show your working and state any assumptions) (a) A group of enterprising RU students are proposing to setup a new "Data by Drone" service for large file transfers within Iceland. The idea is that a fleet of drones will be provided, which can be summoned to carry USB drives to transport data physically between sites. You have been asked by the Marketing department to perform the following engineering calculations for this service to determine when it will be time effective to use. You can assume that the average speed of the drones is 20 Kilometres per hour, including landing and takeoff and their maximum range is 50km. i. (4 points) Assuming you have a fibre optic 100Mbps connection between two sites in Reykjavik, how long will it take to transfer a 250GB file from one site to the other, assuming a 10% protocol data overhe ad and ignoring any additional delays caused by TCP/IP rate adaption? ii. (4 points) If the two sites are 20km apart, how long will it take to transfer the same file using Drones, assuming a USB writing speed of 250MBps, a reading speed also of 250MBps, and the Drone is ready at the sending site