Ch. 1.8. (15 points) Consider a user who needs to upload 1 GB of data to a server, where G is SI standard (base 10) 10⁹ and not binary (base 2) 2³⁰ = 1024³. The user lives in a small town where only 56 kbps dial-up access is available. A bus visits the small town once a day from the closest city 150 km away and stops in front of the users house. The bus has a 100 Mbps Wi-Fi 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 average speed of the bus is 60 km/h.

a) How long is the upload time when using dial-up internet access? b) How long is the upload time when using the bus? c) What is the fastest way for the user to transfer the data to the server?