Look at the figure below, assume a message of 6106 bits long is segmented into 300 packets, will be sent from A to B, and assume each link is 1Mbps, with ignoring queuing, propagation, and processing delays. a. How long does it take to move the first packet from source host to the first switch? 5 points b. When the first packet is being sent from the first switch to the second switch, the second packet is being sent from A to the first switch, then when the first packet being sent to the third switch, the second packet is being sent to the second switch. At what time will the second packet be fully received at the second switch? (10 points)