On a network, all 38 of the stations in the marketing department are connected to switch A. That switch (A) is connected to port #1 on switch B in the network room. A file server is connected to port #5 on switch B. Which of the following is true about the forwarding table of the switch B?
It has multiple entries in its forwarding table for port #1.
It is empty because it learns port #1 is connected to a switch and not a PC.
It has only one entry in its forwarding table - Port: 1; MAC address: MARK TG DP MT.
It will go down soon because its forwarding table will be overloaded.