[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fXVl95zurVAxyoOhBMnWGVEebk14vIxWWtBanHPbtpUU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":22,"type":23},[],"2025-01-05 22:16:57",176472209,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},11,"c6d6071a8ef16aeee7910af5a6afa291","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F30d38a2a9a15728b64ab9546954f4631.jpeg","计算机网络","exam_147306106","计算机网络测试题","某单位分配到一个地址块136.23.12.64\u002F26.现在需要进一步划分为4个一样大的子网.试问: (1)每一个子网的网络前缀有多长? (2)每一个子网中有多少个地址? (3)每一个子网的地址是什么? (4)每一个子网可分配给主机使用的最小地址和最大地址是什么",[17,24,29,34,39,44,49,54,59,62],{"answer":18,"createTime":5,"id":19,"options":20,"question":21,"source":22,"type":23},[],176472201,[],"收发两端之间的传输距离为1000 km,信号在媒体上的传播速率为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F30f624fb045e7f24933f138311544e75.webp\">m\u002Fs,试分别计算 (1)当数据长度为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F77c4ee2cf4e7ae2cded546e4fed65648.webp\"> bit,数据发送速率为100 kbit\u002Fs 时的发送时延和传播时延. (2)当数据长度为103 B,数据发送速率为1Gbit\u002Fs 时的发送时延和传播时延","v1",4,{"answer":25,"createTime":5,"id":26,"options":27,"question":28,"source":22,"type":23},[],176472202,[],"假设信号在媒体上的传播速率为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F65f63f3331d1e74f87865e0681710868.webp\">\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F73f2d05f424e1212eea075c16a2197de.webp\"> m\u002Fs,媒体长度为10 cm.试计算当数据率为10 Gbit\u002Fs 时在该媒体上正在传播的比特数",{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":22,"type":23},[],176472203,[],"假定某信道受奈氏准则限制的最高码元速率为 20000 码元\u002F秒.如果采用振幅调制,把码元的振幅划分为 16 个不同等级来传送,那么可以获得多高的数据率(b\u002Fs)",{"answer":35,"createTime":5,"id":36,"options":37,"question":38,"source":22,"type":23},[],176472204,[],"PPP 协议使用同步传输技术传送比特串 0110111111111100.试问经过零比特填充后变成怎样的比特串?若接收端收到的 PPP 帧的数据部分是 0001110111110111110110,问删除发送端加入的零比特后变成怎样的比特串",{"answer":40,"createTime":5,"id":41,"options":42,"question":43,"source":22,"type":23},[],176472205,[],"有 10 个站连接到以太网上.试计算一下三种情况下每一个站所能得到的带宽. (1)10 个站都连接到 一个 10Mb\u002Fs 以太网集线器; (2)10 个站都连接到一个 100Mb\u002Fs 以太网集线器; (3)10 个站都连接到一个 10Mb\u002Fs 以太网交换机",{"answer":45,"createTime":5,"id":46,"options":47,"question":48,"source":22,"type":23},[],176472206,[],"要发送的数据为 1101011011.采用 CRC 的生成多项式是 P(X)=X^4+X+1.试求应添加在数据后面的余数",{"answer":50,"createTime":5,"id":51,"options":52,"question":53,"source":22,"type":23},[],176472207,[],"试辨认以下 IP 地址的网络类别,并说明该地址是否可分配,如果不能,说明原因. (1)128.36.199.3 (2)21.0.0.0 (3)183.194.76.253 (4) 192.12.69.255 (5)89.3.0.1 (6)200.3.6.2",{"answer":55,"createTime":5,"id":56,"options":57,"question":58,"source":22,"type":23},[],176472208,[],"已知地址块中的一个地址是167.199.170.82\u002F27,求这个地址块的地址数、首地址以及末地址各是多少?这个地址的地址掩码是多少?这个地址的二进制表示是多少",{"answer":60,"createTime":5,"id":6,"options":61,"question":15,"source":22,"type":23},[],[],{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":22,"type":23},[],176472210,[],"一UDP用户数据报的首部十六进制表示是:06 32 00 45 00 1C E2 17.UDP首数的长度是多少?试求源端口、目的端口、用户数据报的总长度、数据部分长度.这个用户数据报是从客户发送给服务器还是服务器发送给客户?使用UDP的这个服务器程序是什么"]