1.某网络IP地址是142.16.2.21,子网掩码是255.255.255.0,则该子网地址是————,主机地址是————.2.一个网络的子网掩码是255.255.255.248,每个子网能过连接的主机数是——.3.一个主机的IP地址是202
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![1.某网络IP地址是142.16.2.21,子网掩码是255.255.255.0,则该子网地址是————,主机地址是————.2.一个网络的子网掩码是255.255.255.248,每个子网能过连接的主机数是——.3.一个主机的IP地址是202](/uploads/image/z/834331-67-1.jpg?t=1.%E6%9F%90%E7%BD%91%E7%BB%9CIP%E5%9C%B0%E5%9D%80%E6%98%AF142.16.2.21%2C%E5%AD%90%E7%BD%91%E6%8E%A9%E7%A0%81%E6%98%AF255.255.255.0%2C%E5%88%99%E8%AF%A5%E5%AD%90%E7%BD%91%E5%9C%B0%E5%9D%80%E6%98%AF%E2%80%94%E2%80%94%E2%80%94%E2%80%94%2C%E4%B8%BB%E6%9C%BA%E5%9C%B0%E5%9D%80%E6%98%AF%E2%80%94%E2%80%94%E2%80%94%E2%80%94.2.%E4%B8%80%E4%B8%AA%E7%BD%91%E7%BB%9C%E7%9A%84%E5%AD%90%E7%BD%91%E6%8E%A9%E7%A0%81%E6%98%AF255.255.255.248%2C%E6%AF%8F%E4%B8%AA%E5%AD%90%E7%BD%91%E8%83%BD%E8%BF%87%E8%BF%9E%E6%8E%A5%E7%9A%84%E4%B8%BB%E6%9C%BA%E6%95%B0%E6%98%AF%E2%80%94%E2%80%94.3.%E4%B8%80%E4%B8%AA%E4%B8%BB%E6%9C%BA%E7%9A%84IP%E5%9C%B0%E5%9D%80%E6%98%AF202)
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