[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f7cSCGszJeIFhO7xoqgWI-VBapaqngCRZAqbXDmWtK-g":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":21,"type":22},[],"2026-03-10 21:59:49",321791985,[8,9,10,11],"物理层","数据链路","网络","传输",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","1021 当数据由端系统A传至端系统B时,不参与数据封装工作的是",[18,23,32,41,50,59,68,77,84,93],{"answer":19,"createTime":5,"id":6,"options":20,"question":16,"source":21,"type":22},[],[8,9,10,11],"v1",0,{"answer":24,"createTime":5,"id":25,"options":26,"question":31,"source":21,"type":22},[],321791986,[27,28,29,30],"64516","254","64518","256","一个C类地址,最多能容纳的主机数目为( )",{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":21,"type":22},[],321791987,[36,37,38,39],"UDP 是无连接的","UDP 是面向报文的","UDP 没有拥塞控制","UDP 提供可靠交付","5017 UDP的主要特点不包括以下()",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":21,"type":22},[],321791988,[45,46,47,48],"Web页面地址","主页地址","网页搜索地址","统一资源定位器URL","每一个Web页面,包括主页都有一个唯一的地址,通常称该地址为( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":21,"type":22},[],321791989,[54,55,56,57],"是网络层设备","根据链路层信息进行路由转发","提供丰富的接口类型","可以支持多种路由协议","下列关于路由器特点的描述,错误的是( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":21,"type":22},[],321791990,[63,64,65,66],"1","2","3","4","IP地址共有5类,常用的有( )类,其余留作其他用途",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":21,"type":22},[],321791991,[72,73,74,75],"IP地址","子网掩码","默认网关","DNS","如果访问Internet时只能适用IP地址,是因为没有配置TCP\u002FIP的( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":83,"source":21,"type":22},[],321791992,[81,28,82,30],"65536","65534","一个B类地址,最多能容纳的主机数目为( )",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":21,"type":22},[],321791993,[88,89,90,91],"每个站独占10Mbit\u002Fs","每个站1 Mbit\u002Fs","10个站共享100Mbit\u002Fs","10个站共享10Mbit\u002Fs","3006 有10个站连接到以太网上.若10个站都连接到一个10Mbit\u002Fs以太网集线器上,则每个站能得到的带宽为( )",{"answer":94,"createTime":5,"id":95,"options":96,"question":101,"source":21,"type":22},[],321791994,[97,98,99,100],"32","20","40","64","IP数据报首部的前一部分是固定长度,共 ( )字节,是所有 IP 数据报必须具有的"]