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【单选题】
请参见图示。 工作站中的一个用户无法连接服务器。 所有电缆经测试正常,而且所有设备都配置有 IP 地址。 但该用户无法 ping 服务器。 原因是什么?A.
路由器接口没有默认网关。
B.
交换机没有 IP 地址和默认网关。
C.
工作站和服务器位于不同的逻辑网络。
D.
工作站不知道交换机的 MAC 地址。
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