[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fDAyu4Ad0jv5oUwIAE28DpVmt1I_jWydjzupBBGj2mYU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-04-21 20:19:03",184006725,[8,9,10,11],"255.255.255.192","255.255.255.224","255.255.255.240","255.255.255.248",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},6,"21215b11ca02f044d304f38548bae29e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F97eba5265bbc8a449d9ddaa443b457c4.jpg","计算机网络与应用","d29527bda20246b0a9e8f763b705b1b5","子网及子网掩码","如果借用一个C类IP地址的3位主机号部分划分子网,那么子网屏蔽码应该是______________",[21,26,35,44,53,62],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],184006726,[30,31,32,33],"255","240","101","5","因特网上某主机的IP地址为128.200.68.101,子网屏蔽码为255.255.255.240,该连接的主机号为_______________",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],184006727,[39,40,41,42],"1024","1023","1022","1000","网络122.21.136.0\u002F22 中最多可用的主机地址是___________",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],184006728,[48,49,50,51],"141.14.0.0","141.0.0.0","141.14.192.0","141.14.64.0","已知IP地址141.14.72.24,对应的子网掩码为255.255.192.0,则其网络地址为( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],184006729,[57,58,59,60],"表示层","网络层","传输层","应用层","子网掩码与OSI网络模型哪一层的工作关系最密切?()",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],184006730,[66,67,68,69],"16","32","30","28","对于C 类IP地址,子网掩码为 255.255.255.248 ,则能提供可用子网数为( )"]