Which of the following layers is associated with the physical hardware address of a network node?（）
- A、Layer 1
- B、Layer 2
- C、Layer 6
- D、Layer 7
正确答案:B
答案解析:有
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CompTIA认证考试
CompTIA认证考试
Which of the following layers is associated with the physical hardware address of a network node?（）
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