A network consists of 75 workstations and three servers. The workstations are currently connected to the network with 100 Mbps switches, and the servers have 1000 Mbps connections. Describe two network problems that can be solved by replacing the workstations' 100 Mbps switches and NICs with 1000 Mbps switches and NICs. What potential problems can this upgrade cause? What must you verify about the existing network configuration before you perform the upgrade.