All offices on the first floor of some organization are wired into a wiring closet on the first floor where there is a layer 2 switch. Currently, all offices on the first floor belong to the accounting department (accounting subnet). All offices on the second floor are wired into a wiring closet on the second floor where there is a layer 2 switch. Currently, all offices on the second floor belong to the engineering department (engineering subnet). There is a single ethernet cable connecting the second floor switch and the first floor switch. There is also a single ethernet cable connecting the first floor switch to a router in the basement. The router is the default gateway for both the accounting and engineering subnets, and is also connected to the ISP. What features must the second floor switch have? (check all that apply) multiple vlans one or more trunk ports it must be a layer 3 switch

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