I'm taking a networking class and am stuck on a practice problem and was hoping someone could give me some guidance. The first time port 1 receives information from port b. The second time port 2 receives information from source e. The third time port 1 now receives information from part c (over writing the data from the first time). How do I know ports 3 and 4? For the second part of the question, the switch would transmit data on just the port connected to e, right?