Which statement about a hub's data forwarding behavior is correct?

• A. It forwards frames only to the destination port.
• B. It broadcasts frames to all ports.
• C. It uses MAC address learning to forward frames.
• D. It encrypts frames before sending.

Answer: (B)

Hubs operate at the physical layer and simply repeat any signal they receive to all other ports on the same network segment. Because they don’t inspect or build MAC tables, they can’t forward a frame to a specific destination; every connected device sees the frame, and the destination NIC accepts it only if its MAC matches. There’s no MAC learning and no encryption performed by a hub, so broadcasting to all ports is the correct behavior.