V. Western Trucking Western Trucking operates a large fleet of trucks that deliver shipments for commercial shippers such as food stores, retailers, and wholesalers. Their main headquarters building and secondary building are shown in Figure 7.16. They currently have a mix of shared 10base-T and switched 10base-T LANs, connected by a series of switches. They want to upgrade to a faster network. Design a new network for them, including the architecture and specific backbone and LAN technologies to be used.