Why will a switch never learn a broadcast address?() Broadcast frames are never sent to swiches.。 Broadcast addresses use an incorrect format for the switching table.。 A broadcast address will never be the source address of a frame.。 Broadcasts only use network layer addressing.。 A broadcast frame is never forwarded by a switch.。
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情报学与信息科学群
饮水试验时饮水量为() 10ml。 30ml。 50ml。 100ml。 随意。
西方文化的精髓是:()