Which statement correctly describes how a LAN switch forwards frames that it receives?

Question:
Which statement correctly describes how a LAN switch forwards frames that it receives?

• Cut-through frame forwarding ensures that invalid frames are always dropped.
• Only frames with a broadcast destination address are forwarded out all active switch ports.
• Frame forwarding decisions are based on MAC address and port mappings in the CAM table.
• Unicast frames are always forwarded regardless of the destination MAC address.

Explanation: Cut-through frame forwarding reads up to only the first 22 bytes of a frame, which excludes the frame check sequence and thus invalid frames may be forwarded. In addition to broadcast frames, frames with a destination MAC address that is not in the CAM are also flooded out all active ports. Unicast frames are not always forwarded. Received frames with a destination MAC address that is associated with the switch port on which it is received are not forwarded because the destination exists on the network segment connected to that port.

Exam with this question: CCNA 2 (v5.0.3 + v6.0) Practice Final Exam Answers