[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f4jXM6twoU9Ejxnp6A6dvZGM4vbEobKSww5mg7eIxObI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":22,"type":23},[],"2024-01-09 21:27:34",129803662,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},38,"c0c999413df34bc3603f3ae0908cdbee","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F778816004863ef23e36d75bedd01c0ca.jpg","【23秋】计算机网络","work_32002932","作业06 期末复习(计算-填空)","现有一个B类网络地址160.18.0.0,如要划分子网,每个子网最少允许40台主机,则划分时容纳最多子网时, 其子网掩码为( )",[17,24,27,32,37,42,47,52,57,62],{"answer":18,"createTime":5,"id":19,"options":20,"question":21,"source":22,"type":23},[],129803658,[],"对于带宽为50kHz的信道,若有8种不同的物理状态来表示数据,信噪比为20DB.问按奈奎斯特定理,最大数据速率是( )Kbps","v1",2,{"answer":25,"createTime":5,"id":6,"options":26,"question":15,"source":22,"type":23},[],[],{"answer":28,"createTime":5,"id":29,"options":30,"question":31,"source":22,"type":23},[],129803663,[],"设要发送的二进制数据为10110011﹐若采用CRC校验方法﹐生成多项式X^4+X^3+1﹐试求出实际发送的二进制数字序列",{"answer":33,"createTime":5,"id":34,"options":35,"question":36,"source":22,"type":23},[],129803665,[],"假设使用调制解调器,并采用1位起始位﹑1位停止位,无校验位的异步传输模式﹐在1分钟内传输7200个汉字(双字节). 调制解调器至少应达到的传输速率为( )bps",{"answer":38,"createTime":5,"id":39,"options":40,"question":41,"source":22,"type":23},[],129803666,[],"调制解调器的传输速率为4800bps,并采用1位起始位,1位停止位,1位奇偶校验位的异步传输模式.求传输2400个汉字所需要的时间为( )秒",{"answer":43,"createTime":5,"id":44,"options":45,"question":46,"source":22,"type":23},[],129803668,[],"C类网络192.168.10.0,每个子网要求22台主机,最多划分( )个子网? 子网掩码是( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":51,"source":22,"type":23},[],129803671,[],"假定某信道受奈氏准则限制的最高码元速率为2000波特.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是( )bps",{"answer":53,"createTime":5,"id":54,"options":55,"question":56,"source":22,"type":23},[],129803674,[],"一个速度为2Gbps、跨距为2km的CSMACD 网络,假设不使用中继器,信号传播速率为5km\u002Fus, 请问该网络的最小帧长是( )字节",{"answer":58,"createTime":5,"id":59,"options":60,"question":61,"source":22,"type":23},[],129803677,[],"假设在采用广播链路的10Mbps以太网中,回答下列问题: (1)某结点连续第5次冲突后,按二进制指数退避算法,选择K=4的概率是【 1 】?(填分数:如1\u002F5). 相应地延迟多久再次重新尝试发送帧?【 2 】(单位us,保留一位小数) (2)如果连续第12次冲突,该结点最多延迟多久再次重新尝试发送帧?【 3 】单位ms,保留4位小数 答题说明:只填写结果",{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":22,"type":23},[],129803683,[],"一台主机的IP地址为10.10.10.10\u002F18,则该主机位于的网络地址为( )"]