超星 - 1.20.2 物理层问题 - 测验

多选题

什么不被认为是物理层问题？ What is NOT considered a physical layer problem?

A. 设备电源关闭或拔掉 device power turned off or unplugged
B. 电缆松动或不正确 loose or incorrect cable
C. 无线配置 wireless configuration
D. 网线故障 faulty network cable
E. 无线接入点故障 faulty wireless access point

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多选题

哪些感官通常会提醒技术人员元件过热？(请选择三个。） Which senses typically alert technicians that components are overheating? (Choose three.)

A. 视觉 sight
B. 嗅觉 smell
C. 味觉 taste
D. 触觉 touch
E. 听觉 hearing

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判断题

真或假？一个端口上的LED灯不亮意味着没有流量。 True or false? A LED light that is not lit on a port means there is no traffic.

A. 对
B. 错

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