6. Assume packet switched network. Suppose you live 1km from the first router and your friend also lives 1km from their router. But the two routers are about 10000km away. The two routers are connected using fiber-optic cable with a propagation speed of 2.5*10%m/s, and your home and your friend's home is also connected to the respective routers using fiber-optic connection. Recalculate the amount of time required for one 1500byte packet to go from your device to your friend's device. Ignore queuing and processing delays. 7. On a bursty network, suppose N packets arrive simultaneously. Each of those packets has a length of L bits and a router is processing packets at the rate of R bits per second. What is the average queuing delay at the router (experienced by these N packets)