What action will occur if a switch receives a frame and does have the source MAC address in the MAC table?

Question:
What action will occur if a switch receives a frame and does have the source MAC address in the MAC table?

• The switch refreshes the timer on that entry.
• The switch shares the MAC address table entry with any connected switches.
• The switch does not forward the frame.
• The switch sends the frame to a connected router because the destination MAC address is not local.

Exam with this question: CCNA 1 v7 Checkpoint Exam: Ethernet Concepts Exam Answers