You have been asked to design a LAN for very successful CPA firm with 5 departments in one building and total of 500 employees. Currently, the firm has no networked computers and it is open to any suggestions you can offer. The firm does have a few requirements, however. It wants to ensure that it can easily expand its LAN in the future without exorbitant costs and without moving a lot of equipment. The firm also wants to ensure that every department has very fast access to the LAN and of course, it wants the LAN to remain up at all times. Decide which network design of operating system will use and what kind of LAN for this company. You may to draw the logical map and physical map to director. Suggest the license and some securities aspect for this firm.You need to suggest better solution for the network backbone with the devices e.g printers, fax machines, scanners, Photostat machines, telephone system etc to support the management. Assume that the floor map divided into 2 levels. The CIO requested to has one room for integrated printing section in each level. Yet, suggest the clients and appropriate server's specification and other devices if necessary.