Question 8: We want to design a coaxial LAN for 12 offices arranged on three similar floors, each floor having two rows with two offices and the rows separated by a hallway. Each office is 5 m 5 m with a height of 3 m. The LAN center is in the center of the ground floor beneath the three office floors. Assume that each office requires two IP telephone lines and retrieves two Web pages per minute at the average rate of 22 KB per page. (a) Estimate the distance from each office to the LAN center. (b) Estimate the required available bit rate for the LAN.