Collision domains?

Question

f a got a 5 port swicht and 4 hubs connected to it, and 10 workstations connected to each hub.Please can somebody tell me how many collision domains I have?

Answer 1

4, if i am not mistaken.

Answer 2

Indeed, 4. Each port on your switch is a separate collision domain. The hubs(multi-port repeater) and the devices under them at that point are all in one collision domain.

So, 4 hubs, 4 C.D.s. Although they are all still on the same broadcast domain ;)