Refer to the exhibit. What action does SW1 take on a frame sent from PC_A to PC_C if the MAC address table of SW1 is empty? | CCNA

     A.    SW1 drops the frame.
     B.    SW1 floods the frame on all ports on SW1, except port Fa0/1. 
     C.    SW1 floods the frame on all ports on the switch, except Fa0/23 and Fa0/1. 
     D.    SW1 uses the CDP protocol to synchronize the MAC tables on both switches and then forwards the frame to all ports on SW2.

ANS: B