Suppose host A and the DHCP server are separated by 2 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is 2.5×108 meters/sec. Neglecting the processing and queuing delays and assuming each packet (which is transmitted between the host A and DHCP server) is 10 bytes, how long will it take for host A to obtain a valid IP address from the DHCP server?