Which Layer 1 devices can be used to enlarge the area covered by a single LAN segment?（）
- A、Switch
- B、Router
- C、NIC
- D、hub
- E、Repeater
- F、RJ-45 transceiver
正确答案:D,E
答案解析:有
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Which Layer 1 devices can be used to enlarge the area covered by a single LAN segment?（）
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