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單項選擇題

下圖中交換機為兩層交換機,主機HostA的IP地址、子網(wǎng)掩碼和網(wǎng)關(guān)設(shè)置正確的是()

A.IP 192.168.188.31;255.255.255.192;網(wǎng)關(guān)192.168.188.130
B.IP 192.168.188.30;255.255.255.0;網(wǎng)關(guān)172.16.1.1
C.IP 192.168.188.20;255.255.255.192;網(wǎng)關(guān)192.168.188.129
D.IP 192.168.188.143;255.255.255.192;網(wǎng)關(guān)192.168.188.129

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