[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f1Gk28tckE6d5FS5T1Ypf7gp8M6UHe3Eq0jpJxMBurno":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-06-29 14:26:09",201360310,[8,9,10,11],"网络部分","主机部分","主机个数","无任何意义",{"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","子网掩码中"1"代表( )",[21,26,36,45,55,64,74,83,93,98],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":28,"id":29,"options":30,"question":35,"source":24,"type":25},[],"2025-08-11 22:03:20",201360313,[31,32,33,34],"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":37,"createTime":28,"id":38,"options":39,"question":44,"source":24,"type":25},[],201360316,[40,41,42,43],"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":46,"createTime":47,"id":48,"options":49,"question":54,"source":24,"type":25},[],"2025-08-11 22:03:21",201360320,[50,51,52,53],"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":56,"createTime":47,"id":57,"options":58,"question":63,"source":24,"type":25},[],201360324,[59,60,61,62],"4.1","145.105","1","105.4.1","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( )",{"answer":65,"createTime":66,"id":67,"options":68,"question":73,"source":24,"type":25},[],"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":24,"type":25},[],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":24,"type":25},[],"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":5,"id":95,"options":96,"question":97,"source":24,"type":25},[],201360340,[31,32,34,33],"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":24,"type":25},[],201360344,[102,53,103,104],"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( )"]