Which is a function of a layer 2 switch?

A. Forwarding the date based upon logical addressing
B. Repeating the electrical signal to all ports
C. Learning the MAC address by examining the destination MAC addresses
D. Determining the forwarding interfaces based upon the destination MAC address and tables

D. Switches learn MAC addresses based upon incoming ports and examination of the source MAC address. It will build a MAC address table for future lookups. It then determines forwarding interfaces based upon the destination MAC address contained in the frame.