[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fl-HmA62aj6J71mcrkz0CmXat4PjX6psl8AeV28Hl5mk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-08-11 22:03:21",201360324,[8,9,10,11],"4.1","145.105","1","105.4.1",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},22,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_43247509","第四章作业二","若某台机器的IP地址为145.105.4.1,子网掩码为255.255.0.0,则其主机号为( )",[21,33,43,52,61,64,74,83,93,98],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-29 14:26:09",201360310,[26,27,28,29],"网络部分","主机部分","主机个数","无任何意义","子网掩码中"1"代表( )","v1",0,{"answer":34,"createTime":35,"id":36,"options":37,"question":42,"source":31,"type":32},[],"2025-08-11 22:03:20",201360313,[38,39,40,41],"R2","R3","接口m0","接口m1","设某路由器R1建立了路由表,格式为:目的网络、子网掩码和下一跳, 现收到目的地址为128.96.40.151的分组,则其按着( )路由进行转发.\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F476e23a913c5c2726f51a90b72557f6c.webp\">",{"answer":44,"createTime":35,"id":45,"options":46,"question":51,"source":31,"type":32},[],201360316,[47,48,49,50],"数据报可以在网络中传送1秒","数据报立即被丢弃","数据报可以经过一个路由器","数据报只能在本局域网内传送","IP数据报中的TTL字段值为1,则下列说法正确的是( )",{"answer":53,"createTime":5,"id":54,"options":55,"question":60,"source":31,"type":32},[],201360320,[56,57,58,59],"255.255.248.0","255.255.252.0","255.255.255.252","255.255.0.0","某单位分配了一个B类地址,计划将内部网络分成35个子网,将来还要增加16个子网,每个子网的主机数目接近800台,若这个网络方案规划可行,则子网掩码是( )",{"answer":62,"createTime":5,"id":6,"options":63,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":65,"createTime":66,"id":67,"options":68,"question":73,"source":31,"type":32},[],"2025-08-11 22:03:22",201360328,[69,70,71,72],"为全0","不同","为全1","相同","若两台主机在同一子网中,则两台主机的IP地址分别与它们的子网掩码相"与"的结果一定( )",{"answer":75,"createTime":66,"id":76,"options":77,"question":82,"source":31,"type":32},[],201360332,[78,79,80,81],"1022","2","510","254","某B类网络的子网掩码为255.255.255.192,则该网络可以划分( )个子网",{"answer":84,"createTime":85,"id":86,"options":87,"question":92,"source":31,"type":32},[],"2025-08-11 22:03:23",201360336,[88,89,90,91],"255.192.0.0","255.240.0.0","255.248.0.0","255.224.0.0","若某A类网络要产生20个子网,则其子网掩码(采用连续掩码)可以是( )",{"answer":94,"createTime":23,"id":95,"options":96,"question":97,"source":31,"type":32},[],201360340,[38,39,41,40],"设某路由器R1建立了路由表,格式为:目的网络、子网掩码和下一跳, 现收到目的地址为128.96.39.169的分组,则其按着( )路由进行转发.\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F476e23a913c5c2726f51a90b72557f6c.webp\">",{"answer":99,"createTime":85,"id":100,"options":101,"question":105,"source":31,"type":32},[],201360344,[102,59,103,104],"255.255.128.0","255.0.0.0","255.255.240.0","IP地址为 140.111.0.0 的B类网络,若要切割为9个子网,而且都要连上Internet,请问子网掩码设为( )"]