Let's assume that you have a small IT business of your own, and you have a client in need of services. She has asked you to design a network for her small business. She is requesting a robust system but is limited on what she can afford. Her company has 3 sites. Site A has 5 rooms. Site B has 1 room. Site C has 4 rooms. You are have been assigned the net block 128.60.80.0/23 by your ISP. You will link up to them via a serial link using 64.4.5.8/30 (.9 is them, .10 is your end). At site A you have 5 rooms which need to support up to 45 hosts each. They can all be on the same subnet (but don't necessarily have to be) At site B you have 40 workstations. They should all be on the same subnet At site B you also have 25 servers behind a router/firewall. These hosts are to be firewalled internal as well as external hosts. The router/firewall has 2 Ethernet interfaces (eth0 and eth1) At site C you have 4 rooms with 20 workstations each. They can all be on the same subnet (but don't necessarily have to be) Site A links to Site B via a dedicated Serial interface. Site B links to Site C via a dedicated Serial interface. Site C links to the ISP via a dedicated Serial interface. You have anticipated her needs and have already purchased and have available the following equipment: a. Gigabit Manageable Fast Ethernet switches i. 48 port switches ii. 24 port switches iii. 8 port switches b. Routers with 2 Gigabit Ethernet interfaces i. Fa0/0ii. Fa0/1