首页 > 计算机类 > 软考 > 初级软考 > 程序员 > 局域网中某主机的 I P 地址为 202.,116.1.12/21 ,该局域网的子网掩码为( )

局域网中某主机的 I P 地址为 202.,116.1.12/21 ,该局域网的子网掩码为( )

A.255.255.255.0
B.255,255.252.0
C.255.255.248.0
D.255.255.240.0
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正确答案: C
答案分析:
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A.255.255.255.0
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