How many broadcast domains are shown in the graphic assuming only the default VLAN is configured on the switches?
A. one B. two C. six D. twelve
Correct Answer: A
Explanation: Only router can break up broadcast domains but in this exhibit no router is used so there is only 1 broadcast domain. For your information, there are 7 collision domains in this exhibit (6 collision domains between hubs & switches + 1 collision between the two switches).