re-EDIT I can not provide my attempts and what wen't wrong, because I am only doing the design and not actually implementing right now. Although the goal of this structure is a school network. I reduced the numbers a lot, but basically: the router would be sending the traffic out of the school network. The one switch connected to it would be sitting in an IT room and the other 5 switches will be inside 5 class rooms. One in each. In the class room there are 20 computers for the students and each of these computers is connected to the switch. What I would like to know is, if each class room can be under one subnet, even though they are connected to a switch and not a router. I hope this helps.
I am making a network design and I am struggling with what is probably a very simple logic. Here goes: When I have 1 router. Connect to it 1 switch. Connect 5 switches to it. And then connect 20 Computers to each of the 5 switches, is it possible to have 5 subnets for each of the switches and the hosts? Or because they are all switches there can only be one subnet on the router?
I hope it makes any sense, thank you in advance for your replies.