思科计算机网络题目及翻译3.doc

实验报告用纸 课程 计算机网络基础 日期 2014 年 5 月4日 班级 学号 姓名 成绩 实验题目: 实验4：第六七八章测试 实验目的 掌握Frame定义 掌握以太网的相关知识 实验内容 1.What does a switch build as it reads MAC addresses that pass through it?交换机构建下列哪张表，通过它可以读取MAC地址？ 选择一项： a. Routing Topology table路由拓扑表 b. Store and Forward list存储和转发列表 c. MAC Route Address table MAC地址表 d. Content Addressable Memory table内容可寻址存储表 e. Cut-through domain直通域 正确答案是： Content Addressable Memory table Which switching mode results in the lowest amount of latency and provides no error checking?下面哪种交换转发模式具有最低的延迟，但不提供错误的检查？ 选择一项： a. synchronous同步 b. fragment-free c. cut-through 贯通转发 d. store-and-forward存储转发 正确答案是：cut-through What will a bridge do if it receives a frame with a MAC address that is not within the table?如果网桥收到一个MAC地址并不在表内的数据帧，将会如何处理？ 选择一项： a. ignore frame b. send frame to appropriate port 发送到适当的端口 c. discard frame丢弃帧 d. send frame to all ports except source port 泛洪到除源端口外的其他端口 正确答案是：send frame to all ports except source port Which of the following is a term associated with replacing hubs with switches to increase the number of collision domains?下列哪项是长期与，以增加冲突域的数量代替集线器相联？ 选择一项： a. extended扩展 b. encapsulation?封装 c. layered model分层模型 d. latency e. broadcast domain广播域 f. segmentation 分割 正确答案是：segmentation Which of the following are not to be exceeded when implementing the 5-4-3-2-1 Rule? (Choose three.)下列哪项是实施5-4-3-2-1规则时不超过？ （选择三项。） 选择一项或多项： a. one collision domain一个冲突域 b. four repeater4中继器 c. three routers 三台路由器 d. three host segments 三大主机段 e. five broadcast domains 5广播域 正确答案是：four repeater, one collision domain , three host segments Which of the following describes the concept of full-duplex mode?列哪一项描述全双工模式的概念？ 选择一项： a. traffic passing equally in both directions with no collisions b. traffic passing faster downstream than upstream下行流量比上行流量传递的快 c. traffic passing faster upstream than downstream上行流量比下行流量传递的快 d. traffic passing in one direction at a time with no collisions流量在同一时间在一个方向上传递没有冲突 正确答案是：traffic passing e