When a host receives a frame with destination MAC FF:FF:FF:FF:FF:FF, what should it do?

• A. The host will process the frame.
• B. The host will discard the frame.
• C. The host forwards the frame to the router.
• D. The host forwards the frame to all other hosts.

Answer: (A)

Broadcast at the Ethernet layer means the frame is addressed to every device on the local network segment. When a host receives such a frame, its network interface accepts it and passes the payload up to the operating system, which will process it or respond if the frame is relevant (for example, an ARP request to resolve an IP address). A host does not discard broadcast frames, and it does not forward them to a router or to all other hosts—that forwarding is done by network devices like switches, not by individual hosts.