__ I'm very immature __ I'm appropriately mature for my age __ I'm very mature __ I'm gaining maturity (growing personally) __ I have most or all the requisites for personal growth __ people who know me would agree with my answers above.
So the frame gets broadcasted throughout the broadcast domain, until the end device with a matching MAC address responds to the broadcast, thus giving the switch a new source address to add to its MAC table. It duplicates the frame to all Ethernetports, except the port it came from.
The switch already has an entry in its MAC address table for the destination MAC address in the frame so it knows exactly which interface leads to the destination of the frame. The switch forwards frame out the single interface associated with the destination MAC address in the frame.