CCNA Practice Exam Test Sample – Question 70

Refer to Exhibit:
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
Section: LAN Switching Technologies

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).