CCNA: Cisco Certified Network Associate — Question 1348

When a switch receives a frame for a known destination MAC address, how is the frame handled?

Answer options

• A. flooded to all ports except the one from which it originated
• B. forwarded to the first available port
• C. sent to the port identified for the known MAC address
• D. broadcast to all ports

Correct answer: C

Explanation

The switch will deliver the frame to the specific port associated with the recognized MAC address, ensuring efficient communication. Options A and D are incorrect as they describe flooding and broadcasting, which are used for unknown addresses. Option B is also wrong because a frame is not sent to just any available port when the destination is known.