[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f_BoffDhVRwL5whP3EwlEqMAryTWWuMwY_norpcW4fy0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":9,"question":16,"related":17,"source":28,"type":29},[],"2025-05-28 14:50:41",191584180,[8,8,8,8],"",{"count":10,"courseId":11,"courseImg":12,"courseName":13,"workId":14,"workName":15},39,"22a393d83ca67a242183486abfb4988f","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","硬件及网络技术选讲","work_43963539","第5、6章作业:传输层 应用层","主机甲向主机乙发送一个 (SYN=1, seq=11220) 的 TCP 段,期望与主机乙建立 TCP 连接,若主机乙接受该连接请求,则主机乙向主机甲发送的正确的 TCP 段可能是( )",[18,30,39,47,50,58,65,74,83,90],{"answer":19,"createTime":20,"id":21,"options":22,"question":27,"source":28,"type":29},[],"2025-05-28 14:50:40",191584177,[23,24,25,26],"500","700","800","1000","主机甲与主机乙之间已建立一个 TCP 连接,主机甲向主机乙发送了两个连续的 TCP 段,分别包含 300 字节和 500 字节的有效载荷,第一个段的序列号为 200 ,主机乙正确接收到两个段后,发送给主机甲的确认序列号是( )","v1",0,{"answer":31,"createTime":20,"id":32,"options":33,"question":38,"source":28,"type":29},[],191584178,[34,35,36,37],"7 KB","8 KB","9 KB","16 KB","一个 TCP 连接总是以 1 KB 的最大段长发送 TCP 段,发送方有足够多的数据要发送.当拥塞窗口为 16 KB 时发生了超时,如果接下来的 4 个 RTT(往返时间)时间内的 TCP 段的传输都是成功的,那么当第 4 个 RTT 时间内发送的所有 TCP 段都得到肯定应答时,拥塞窗口大小是( )",{"answer":40,"createTime":20,"id":41,"options":42,"question":46,"source":28,"type":29},[],191584179,[26,43,44,45],"2000","3000","4000","主机甲和主机乙之间已建立了一个 TCP 连接,TCP 最大段长度为 1000 字节.若主机甲的当前拥塞窗口为 4000 字节,在主机甲向主机乙连续发送两个最大段后,成功收到主机乙发送的第一个段的确认段,确认段中通告的接收窗口大小为 2000 字节,则此时主机甲还可以向主机乙发送的最大字节数是( )",{"answer":48,"createTime":5,"id":6,"options":49,"question":16,"source":28,"type":29},[],[8,8,8,8],{"answer":51,"createTime":5,"id":52,"options":53,"question":57,"source":28,"type":29},[],191584181,[54,23,55,56],"300","1200","1400","主机甲与主机乙之间已建立一个 TCP 连接,主机甲向主机乙发送了 3 个连续的 TCP 段,分别包含 300 字节、400 字节和 500 字节的有效载荷,第 3 个段的序号为 900.若主机乙仅正确接收到第 1 和第 3 个段,则主机乙发送给主机甲的确认序号是( )",{"answer":59,"createTime":5,"id":60,"options":61,"question":64,"source":28,"type":29},[],191584182,[62,63,62,63],"2012","2013","主机甲与主机乙之间已建立一个TCP连接,双方持续有数据传输,且数据无差错与丢失.若甲收到1个来自乙的TCP段,该段的序号为 1913、确认序号为 2046、有效载荷为 100 字节,则甲立即发送给乙的TCP段的序号和确认序号分别是( )",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":28,"type":29},[],191584183,[69,70,71,72],"10KB","12KB","14KB","15KB","主机甲和主机乙已建立了TCP连接,甲始终以MSS=1KB大小的段发送数据,并一直有数据发送;乙每收到一个数据段都会发出一个接收窗口为10KB的确认段.若甲在t时刻发生超时时拥塞窗口为8KB,则从t时刻起,不再发生超时的情况下,经过10个RTT后,甲的发送窗口是( )",{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":28,"type":29},[],191584184,[78,79,80,81],"仅I","仅I、II","仅II、III","II、III","下列关于 UDP 协议的叙述中,正确的是( ).I. 提供无连接服务 II. 提供复用\u002F分用服务III. 通过差错校验,保障可靠数据传输",{"answer":84,"createTime":5,"id":85,"options":86,"question":89,"source":28,"type":29},[],191584185,[87,35,37,88],"1 KB","32 KB","主机甲和主机乙新建一个TCP连接,甲的拥塞控制初始阈值为32 KB,甲向乙始终以MSS=1 KB大小的段发送数据,并一直有数据发送;乙为该连接分配16 KB接收缓存,并对每个数据段进行确认,忽略段传输延迟.若乙收到的数据全部存入缓存,不被取走,则甲从连接建立成功时刻起,未发生超时的情况下,经过4个RTT后,甲的发送窗口是( )",{"answer":91,"createTime":5,"id":92,"options":93,"question":98,"source":28,"type":29},[],191584186,[94,95,96,97],"源端口号","目的端口号","长度","校验和","UDP 协议实现分用 (demultiplexing) 时所依据的头部字段是( )"]