project 3. Internet. switch. Laser. Printer. switch. switch. Printer. Printer. switch. backbone switch/. Router. Mirror. Mirror. Payroll Server. Major. Project. Serve. r. Faults. Billing. switch. switch. 5 users. Projects Division. 20 users. Graphics Plotter. Billing Division. Tape Drive. Tape Drive. Modem. Firewall. Laser. Printer.