Janice, the IT and network manager, has been given the job of planning the Ethernet Switch infrastructure for a new building that her company is moving into. The building has three floors with a reasonably even spread of network connected devices across them. She initially decided on the layout shown in the following image, with two switches on each floor to give the necessary number of ports and some expansion capacity, The main core switch is connected to the building's router, which will provide access to the company's other sites and to the Internet. HQ Router Main Switch 10/1GbE Floor 1 Switch 1GbE/100MbE Floor 2 Switch 1GbE/ 100MLE Floor 3 Switch 1GbE/100MbE Floor 1 Extension Switch 1GbE/100MbE Floor 2 Extension Switch TGbE/100MbE Floor 3 Extension Switch 1GbE/100MbE Revised Switch topolo des