$($a$)$ You would like to urgently deliver $50$ terabytes of very important and expensive data from

Boston to Los Angeles. You have a $100$ Mbps dedicated link available for data transfer. Would you

prefer to transmit the data via this link or instead use FedEx overnight delivery? Explain.

$($b$)$ What would be your choice if the file instead had a size of $50$GB$?$ Explain.