[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fktOHwKO3NQY-9tQ2E1Mp0j4hyBv-5Ai-1ECWGAd98lU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-07-07 17:03:03",157700658,[8,9,10,11],"Get","URLConnection","HttpGet","HttpPost",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},26,"3948bcfe9c5b71f784df40a89b99a0a0","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8f6d1861c2d7225ca42808692d75026e.jpg","物联网应用系统工程技术","e1a4708d92604f87995c9cbc1a44a634","第六章-副本","使用HttpClient的Get方式请求数据时,可以()类来构建Http请求",[21,26,36,45,54,63,72,81,90,99],{"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},[],"2024-07-07 17:03:04",157700659,[31,32,33,34],"21","80","8080","23","HTTP的默认端口()",{"answer":37,"createTime":28,"id":38,"options":39,"question":44,"source":24,"type":25},[],157700660,[40,41,42,43],"支持客户\u002F服务器模式","简单快速","无连接","有状态","下列哪些不是HTTP协议的主要特点()",{"answer":46,"createTime":28,"id":47,"options":48,"question":53,"source":24,"type":25},[],157700661,[49,50,51,52],"REQ","PUT","GET","DELETE","以下不是HTTP协议请求方法的是( )",{"answer":55,"createTime":28,"id":56,"options":57,"question":62,"source":24,"type":25},[],157700662,[58,59,60,61],"A.服务器已经理解了客户端的请求并将通过Upgrade消息头通知客户端采用不同的协议来完成这个请求","B.服务器采用了Node.js","C.服务器找不到该页面","D.已建立WebSocket连接","某次建立WebSocket连接过程中服务器响应报文中包含有HTTP\u002F1.1 101说明()",{"answer":64,"createTime":28,"id":65,"options":66,"question":71,"source":24,"type":25},[],157700663,[67,68,69,70],"(A)面向连接的协议","(B)面向非连接的协议","(C)传输层协议","(D)以上均不对","10. TCP 和UDP 协议的相似之处是( )",{"answer":73,"createTime":28,"id":74,"options":75,"question":80,"source":24,"type":25},[],157700664,[76,77,78,79],"(A)三路握手","(B)二路握手","(C)四路握手","(D)同步与前向确认","83. TCP传输数据之前必须建立连接,建立TCP连接的方法是( )",{"answer":82,"createTime":28,"id":83,"options":84,"question":89,"source":24,"type":25},[],157700665,[85,86,87,88],"从上至下","从下至上","从传输层至上","从网络层至上","TCP\u002FIP 协议栈中报文的解封装是()依次拆离各层的头部信息",{"answer":91,"createTime":28,"id":92,"options":93,"question":98,"source":24,"type":25},[],157700666,[94,95,96,97],"A.UDP用于帮助IP确保数据传输 而TCP无法实现","B.UDP提供了一种传输不可靠的服务主要用于可靠性高的局域网中TCP的功能与之相反","C.TCP提供了一种传输不可靠的服务主要用于可靠性高的局域网中UDP的功能与之相反","D.以上说法都错误","以下对 TCP和UDP协议区别的描述哪个是正确的( )",{"answer":100,"createTime":28,"id":101,"options":102,"question":107,"source":24,"type":25},[],157700667,[103,104,105,106],"A.功能码和数据","B.地址和功能码","C.地址和差错校验","D.功能码和差错校验","与传统的串口方式相比Modbus TCP插入一个标准的Modbus报文到TCP报文中不再带有( )"]