In the following exhibit, which switch interface will become a nondesignated port?

A. Switch B Fa0/2
B. Switch A Fa0/0
C. Switch A Fa0/1
D. Switch C Fa0/4

B. All of the switches have the same priority. However, Switch C has the lowest MAC address and has become the root bridge. The link between Switch A and Switch B is not a redundant connection. Since Switch A has a higher MAC address, its port of Fa0/0 will go into a blocking state and become non-designated.