1. (10 points) Consider sending a large file of size 8MB from source to destination. Assume there are two packet switches between a source host and a destination host. The bandwidth of each link is 2Mbps. a) Determine the time it takes to transmit this file from source to destination.Ignore any propagation, queuing, and processing delays. Note: This network uses store and forward switching b)Determine the time it takes to transmit this file from source to destination if this file is divided into 800 packets and each packet is 10KB size. The packet length includes both header and the payload