For what two purposes does the Ethernet protocol use physical addresses? （）
- A、Network A - 172.16.3.48/26
- B、Network A - 172.16.3.128/25
- C、Network A - 172.16.3.192/26
- D、Link A - 172.16.3.0/30
- E、Link A - 172.16.3.40/30
- F、Link A - 172.16.3.112/30
正确答案:A,E
答案解析:有
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