以下哪个是给交换机供电的三个基本步骤的正确顺序? Which of the following is the correct order of the three basic steps for powering up a switch?
A. 检查组件,将电缆连接到交换机,给交换机通电 check the components, connect the cables to the switch, power up the switch
B. 给交换机通电,检查组件,将电缆连接到交换机 power up the switch, check the components, connect the cables to the switch
C. 将电缆连接到交换机,检查组件,给交换机通电。 connect the cables to the switch, check the components, power up the switch
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真或假。带外管理需要设备上的本地网络连接处于活动状态。 True or false. Out-of-band management requires a the local network connections on the device to be active.
A. 对
B. 错
真或假。带内管理连接要求设备上至少有一个网络接口连接到网络上,并在其上配置了一个IP地址。 True or false. An in-band management connection requires at least one network interface on the device to be connected to the network and have an IP address configured on it.
A. 对
B. 错
下列局域网协议中,( )是令牌环网协议。
A. IEEE 802.2
B. IEEE 802.3
C. IEEE 802.4
D. IEEE 802.5
OSI参考模型中,数据链路层的数据单位是( )。
A. 信元
B. 报文
C. 分组
D. 帧