Which of the following statements are true regarding bridges and switches? (Choose 3.)（）

• A、Switches are primarily software based while bridges are hardware based.
• B、Both bridges and switches forward Layer 2 broadcasts.
• C、Bridges are frequently faster than switches.
• D、Switches have a higher number of ports than most bridges.
• E、Bridges define broadcast domains while switches define collision domains.
• F、Both bridges and switches make forwarding decisions based on Layer 2 addresses.