7. consider a user who needs to transmit 1.5 gigabytes of data to a server. the user lives in a small town where only dial-up access is available. a bus visits the small town once a day from the closest city, located 150 km away, and stops in front of the user’s house. the bus has a 100-mbps wifi connection. it can collect data from users in rural areas and transfer them to the internet through a 1 gbps link once it gets back to the city. suppose the average speed of the bus is 60 km/h. what is the fastest way the user can transfer the data to the server?