Which two statements are true regarding an Ethernet collision domain?（）
- A、If a switch is used, the collision domain includes all devices connected to the switch.
- B、If a hub is used, the collision domain includes all devices connected to the hub.
- C、If a hub is used, the collision domain is limited to each device and the hub.
- D、If a switch is used, the collision domain is limited to each device and the switch.
正确答案:B,D
答案解析:有
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