CCNA: Cisco Certified Network Associate — Question 1122

How does a hub handle a frame traveling to a known destination MAC address differently than a switch?

Answer options

• A. The hub forwards the frame to all ports, and a switch forwards the frame to the known destination.
• B. The hub forwards the frame to all ports in the FIB table, and a switch forwards the frame the destination MAC is known.
• C. The hub forwards the frame using the information in the MAC table, and a switch uses data in its routing table.
• D. The hub forwards the frame only to the port connected to the known MAC address, and a switch forwards the frame to all ports.

Correct answer: A

Explanation

The correct answer is A because a hub operates by broadcasting the frame to all connected ports, while a switch intelligently forwards the frame only to the specific port associated with the destination MAC address. The other options misrepresent how hubs and switches function, particularly regarding the use of FIB tables and routing tables, which are not applicable to hubs.