网络管理员在日常巡检中，发现某交换机有个接口（电口）丢包频繁，下列处理方法中正确的是（ ）。
①检查连接线缆是否存在接触不良或外部损坏的情况
②检查网线接口是否存在内部金属弹片凹陷或偏位
③检查设备两端接口双工模式、速率、协商模式是否一致
④检查交换机是否中病毒
- A.①②
- B.③④
- C.①②③
- D.①②③④
正确答案及解析
正确答案
解析
交换机本身不会中毒，也不会存储病毒，但会有病毒利用交换机的一些特性进行传播。
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