[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fTIV0TJOJC6-FpwwK2tl2o3myEHzgmnNT_Z5o6j0PSEE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-12-19 10:08:52",172229047,[8,9,10,11],"Interet","CERNET","以太网","CHINANET",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},59,"adea2e4aef006972a959f60c1284bc34","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F97eba5265bbc8a449d9ddaa443b457c4.jpg","大学计算机2023","work_39633036","第五章作业","按通信距离,计算机网络有局域网和广域网之分,以下属于局域网的是()",[21,32,35,44,53,60,69,78,87,96],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],172229046,[25,26,27,28],"环形结构、星形结构和总线型结构","环网结构、单环结构和双环结构","网状结构、环形结构和总线结构","单环结构、双环结构和总线型结构","网络的拓扑结构主要包括()","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],172229049,[39,40,41,42],"通信设备","复制设备","扫描设备","打印设备","3.计算机网络中不可或缺的硬件设备是()",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],172229051,[48,49,50,51],"物理层","数据链路层","网络层","应用层","4.网桥工作在()",{"answer":54,"createTime":5,"id":55,"options":56,"question":59,"source":30,"type":31},[],172229053,[48,57,50,58],"传输层","表示层","5.计算机网络通常采用多层通信协议结构,有关选择路由、网络连接中间节点、形成数据块分组、网络连接复位等问题的协议处于()",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":30,"type":31},[],172229055,[64,65,66,67],"信息保密","身份鉴别","数字签名","信息校验","6.以下不属于加密技术应用范围的是()",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":30,"type":31},[],172229057,[73,74,75,76],"将计算机输入的数字信号调制成模拟信号,以便发送","将输人的模拟信号调制成计算机的数字信号,以便发送","将数字信号和模拟信号进行调制和解调,以便计算机发送和接收","为了在拨号上网时,上网和接收电话两不误","调制解调器(Modem)、是电话拨号上网的主要硬件设备,它的作用是()",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":30,"type":31},[],172229059,[82,83,84,85],"宽带网","ADSL","电话 Modem","ISDN","8.目前我国计算机用户接人互联网的下述几种方式中,传输速度最快的是()",{"answer":88,"createTime":5,"id":89,"options":90,"question":95,"source":30,"type":31},[],172229061,[91,92,93,94],"自动退回给发件人","开机时对方重新发送","保存在服务商的E-mail 服务器上","该邮件丢失","9.当电子邮件到达时,若收件人没有开机,该邮件将()",{"answer":97,"createTime":5,"id":98,"options":99,"question":104,"source":30,"type":31},[],172229062,[100,101,102,103],"实现了数据打包和解析","支持所有的物理标准和数据链路协议","实现了可靠的端到端有序传输数据报信息","在接收位置将数据报汇集成完整的信息","下列叙述中,最恰当地描述了TCP\u002FIP的是()"]