2009年3月四级网工真题
到全国计算机四级网络工程师笔试真题及全部答案完整版
到全国计算机四级网络工程师笔试真题及全部答案HEN system office room 【HEN16H-HENS2AHENS8Q8-HENH1688】2009年9月全国计算机等级考试四级笔试试卷网络工程师（考试时间120分钟，满分100分）一、选择题（每小题1分，共40分）。
下列各题A）B）C）D四个选项中，只有一个选项是正确的，请将正确的选项涂写在答题卡相应位置上，答在试卷上不得分。
(1)下列关于宽带城域网技术的描述中，错误的是A）宽带城域网保证QoS的主要技术有RSVP、DiffServ和MPLSB）宽带城域网带内网络管理是指利用网络管理协议SNMP建立网络管理系统C）宽带城域网能够为用户提供带宽保证，实现流量工程D）宽带城域网可以利用NAT技术解决IP地址资源不足的问题(2)下列关于接入技术特征的描述中，错误的是A）远距离无线宽带接入网采用标准B）Cable Modem利用频分复用的方法，将信道分为上行信道和下行信道C）光纤传输系统的中继距离可达100km以上D）ADSL技术具有非对称带宽特性(3) 下列关于RPR技术的描述中，错误的是A）RPR环能够在50ms内实现自愈B）RPR环中每一个节点都执行DPT公平算法C）RPR环将沿顺时针方向传输的光纤环叫做外环D）RPR的内环与外环都可以传输数据分组与控制分组(4) ITU标准OC-12的传输速率为A ) B) C) D）(5)下列关于路由器技术指标的描述中，错误的是A）吞吐量是指路由器的包转发能力B）背板能力决定了路由器的吞吐量C）语音、视频业务对延时抖动要求较高D）突发处理能力是以最小帧间隔值来衡量的(6)一台交换机具有16个100/1000Mbps全双工下联端口，它的上联端口带宽至少应为A） B） C） D）(7)若服务器系统可用性达到%，那么每年的停机时间必须小于等于A）5分钟 B） 10分钟 C） 53分钟 D） 106分钟(8) 网络地址的子网掩码是A）. B）. 224.0 C）. D）.(9)下图是网络地址转换NAT的一个示例根据图中信息，标号为②的方格中的内容应为A） S=173,2012 B） S=D=2 D=） S= D） S=D= D=(10)某公司分配给人事部的IP地址块为59/27，分配给培训部的IP地址块为/ 28，分配给销售部的IP地址块为/28，那么这三个地址块经过聚合后的地址为A） /25 B） /25C） /26 D） /26(11)下列对IPv6地址表示中，错误的是A） ::601:BC:0:05D7 B）21DA:0:0:0:0:2A:F:FE08:3C） 21BC::0:0:1/48 D）EF60::2A90:FE:0:4CA2:9C5A(12) 下列关于BGP协议的描述中，错误的是A）当路由信息发生变化时，BGP发言人使用notification分组通知相邻自治系统B）一个BGP发言人通过建立TCP连接与其他自治系统中BGP发言人交换路由由信息C）两个属于不同自治系统的边界路由器初始协商时要首先发送open分组D）两个BGP发言人需要周期性地交换keepalive分组来确认双方的相邻关系(13) R1, R2是一个自治系统中采用RIP路由协议的两个相邻路由器，R1的路由表如下图(a)所示，当R1收到R2发送的如下图(b)的〔V, D）报文后，R1更新的五个路由表项中距离值从上到下依次为(b)A）0、3、4、3 、1 B）0、4、4、3、2 C）0、5、4、3、1 D）0、5、4、3、2(14)下列关于路由选择协议相关技术的描述中，错误的是A）最短路径优先协议使用分布式链路状态协议B）路由信息协议是一种基于距离向量的路由选择协议C）链路状态度量主要包括带宽、距离、收敛时间等D）边界网关协议可以在两个自治系统之间传递路由选择信息（15)下列关于集线器的描述中，错误的是A）集线器是基于MAC地址识别完成数据转发的B）连接到集线器的结点发送数据时，将执行CSMA/CD介质访问控制方法C）通过在网络链路中串接一个集线器可以监听该链路中的数据包D）连接到一个集线器的所有结点共享一个冲突域(16)下列关于工作区子系统适配配器的描述中，错误的是A）在设备与不同的信息插座连接时，可选用专用电缆或适配器B）当在单一信息插座上进行两项服务时，可采用“Y”型适配器C）在水平子系统中选用电缆类别不同于设备所需的设备类别时，宜采用适配器D）适配器不具有转换不同数据速率的功能(17)A）0.0.0B）C）0.0.0D）(18)在Catalyst 3524以太网交换机上建立名为hyzx204的VLAN ,正确的配置语句是A） vlan 1 name hyzx204 B） vlan 105 hyzx204C） vlan 500 name hyzx204 D） vlan 1005 name hyzx204(19)交换机优先级增量值是A）1024 B）2048 C）4096 D）8192(20)提高Catalyst 6500发生间接链路失效的收敛速度,正确配置STP可选功能的命令是A）set spantree backbonefast enable B）set spantree uplinkfast enableC）set spantree portfast 3/2 enable D）set spantree portfast bpdu-filter enable(21)Cisco路由器查看路由表信息的命令是A） show route B） show router C） show ip route D）show ip router(22)用标准访问控制列表封禁非法地址的数据包进出路由器的正确配置是A）access-list 110 denyaccess-list 110 permit anyB）access-list 10 denyaccess-list 10 permit anyC）access-list 50 permit anyaccess-list 50 denyD）access-list 99 denyaccess-list 99 permit any(23)配置DHCP服务器IP正确的配置语句是A0.0.0.255D(24)下列路由表中错误的路由表项是A）B）C）D）(25)在设计一个要求具有NAT功能的小型无线局域网时，应选用的无线局域网设备是A）无线网卡 B）无线接入点 C）无线网桥 D）无线路由器(26) 下列对Aironet 1100无线接入点进入快速配置页面的描述中，错误的是A）第一次配置无线接入点一般采用本地配置方式B）使用5类以太网电缆连接PC机和无线接入点，并给无线接入点加电C）在PC机获得10.0.0.×D）输入密码并按“回车”键后，出现接入点汇总状态页面，点击“Express Setup”进入快速配置页面(27)下列对SSID的描述中，错误的是A）SSID是无线网络中的服务集标识符B）SSID是客户端设备用来访问接入点的唯一标识C）快速配置页面中“Broadcast SSID in Beacon”选项，可用于设定允许设备不指定SSID而访问接入点D）SSID不区分大小写(28)下列关于Windows 2003系统下DNS服务器配置和测试的描述中，错误的是A）允许客户机在发生更改时动态更新其资源记录B）DNS服务器中的根DNS服务器需管理员手工配置C）转发器是网络上的DNS服务器，用于外部域名的DNS查询D）使用nslookup命令可以测试正向和反向查找区域(29)下列关于Windows 2003系统下DHCP服务器配置的描述中，错误的是A）不添加排除和保留时，服务器可将地址池内的IP地址动态指派给DHCP B）地址租约期限决定客户机使用所获得IP地址的时间长短C）添加排除和保留时确立需获得客户机的MAC地址信息D）保留是指DHCP服务器指派的永久地址租约(30)下列关于Windows 2003系统WWW服务器安装、配置的描述中，错误的是A）在一台服务器上可构建多个网站B）在Windows 2003中添加操作系统组件IIS就可实现Web服务C）在Web站点的主目录选项卡中，可配置主目录的读取和写入等权限D）Web站点必须配置静态的IP地址(31)下列关于Serv_U FTP服务器安装和配置的描述中，错误的是A）创建新域时输入的域名不必是合格的域名B）用户可在FTP服务器中自行注册新用户C）选择拦截“FTP BOUNCE”和FXP后，则不允许在两个FTP服务器间传输文件 D）添加用户时，若用户名为“anonymous”，系统会自动判定为匿名用户(32)下列关于Winmail邮件服务器描述中，错误的是A）Winmail邮件服务器支持支持基于Web方式的访问和管理B）Winmail邮件服务器管理工具包括系统设置、域名设置等C）在系统设置中可以通过增加新的域构建虚拟邮件服务服务器D）为建立邮件路由，需要在DNS服务器中建立邮件服务器主机记录和邮件交换器记录( 33 ) Cisco PIX 525防火干墙能够进行操作系统映象更新、口令恢复等操作的模式是A）特权模式 B）非特权模式 C）监视模式 D）配置模式(34 ) 下列入侵检测系统结构中，能够真正避免单点故障的是A）集中式 B）层次式 C）协作式 D）对等式(35)下列关于RAID的描述中，错误的是A）服务器需要外加一个RAID卡才能实现RAID功能B）RAID10是RAID0和RAID1的组合C）一些RAID卡可以提供SATA接口D）RAID卡可以提供多个磁盘接口通道(36)下列关于IPS的描述中，错误的是A）NIPS对攻击的漏报会导致合法的通信被阻断B）AIPS一般部署于应用服务器的前端C）HIPS可以监视内核的系统调用，阻挡攻击D）IPS工作在In-Line模式(37)能够得到下面信息的DOS命令是A）nbtstat B）tracert C）pathping D）netstat (38)当IP包头中TTL值减为0时，路由由器发出的ICMP报文类型为A）时间戳请求 B）超时C）目标不可达 D）重定向(39) 在某Cisco路由器上使用命令“snmp-server host 77.5 A）路由器上已用“snmp-server enable traps”设置了SNMP代理具有发出通知的功能B) 路由器向管理站按照团体字public发送通知C）D）路由器使用SNMP版本1向管理站发送通知(40)下列软件中不能用于网络嗅探的是A）TCPdump B） Wireshark C） Eghernet D） MRTG二、综合题(每空 2 分，共 40 分)。
全国计算机等级考试四级网络工程师真题2009年3月
全国计算机等级考试四级网络工程师真题2009年3月(总分：100.00，做题时间：120分钟)一、选择题(每题1 分，共40 分) (总题数：40，分数：40.00)1.下列关于光纤同轴电缆混合网HFC 的描述中，错误的是（分数：1.00）A.HFC 是一个单向传输系统√B.HFC 改善了信号传输质量，提高了系统可靠性C.HFC 光纤结点通过同轴电缆下引线可以为500 到2000 个用户服务D.HFC 通过Cable Modem 将用户计算机与同轴电缆连接起来解析：[解析] 随着有线电视网络CATV的双向传输改造，利用有线电视网络进行双向数据传输服务成为可能。
光纤同轴电缆混合网(HFC)是一个双向传输系统，光纤结点将光纤干线和同轴分配线相互连接。
由此可知，选项A的说法有误。
光纤结点通过同轴电缆下引线可以为500～2000个用户服务，但这些被连接在一起的用户共享同一根传输介质。
在客户端，HFC通过Cable MODEM将用户计算机与同轴电缆连接起。
HFC改善了信号质量，提高了系统可靠性，线路可以使用的带宽高达1 GHz。
2.下列关于无线局域网802.11 标准的描述中，错误的是（分数：1.00）A.802.11 标准定义了无线局域网的物理层与MAC 层协议B.802.11 标准定义了两类设备，即无线结点与无线接入点C.无线接入点在无线与有线网络之间起到桥接的作用D.802.11 标准在MAC 层采用了CSMA/CD 的访问控制方法√解析：[解析] IEEE 802.11标准定义了无线局域网(WLAN)的物理层与媒体访问控制(MAC)层协议的规范，允许WLAN及无线设备制造商在一定范围内建立互操作网络设备，使得无线结点在对等的基础上实现互连，或通过路由器或网桥等互连设备与Internet网关连接。
IEEE 802.11标准定义了两类设备，即无线结点与无线接入点。
无线结点通常是在一台接入设备上加上一块无线网络接口卡构成的。
全国计算机等级考试四级网络工程师历年真题及答案汇编4月3月
2008年4月全国计算机等级考试四级笔试试卷网络工程师（考试时间120分钟，满分100分）一、选择题（每小题1分，共40分）下列各题A）、B）、C）、D）四个选项中，只有一个选项是正确的，请将正确的选项涂写在答题卡相应位置上，答在试卷上不得分。
（1）、设计一个宽带城域网将涉及“三个平台一个出口”，即网络平台、业务平台、管理平台和A、广域网出口B、局域网出口C、城市宽带出口D、卫星通道出口（2）、下列关于宽带城域网核心交换层特点的描述中，错误的是A、将多个汇聚层连接起来B、为整个城域网提供一个高速、安全与具有QoS保障能力的数据传输环境C、提供宽带城域网的用户访问Internet所需要的路由服务D、根据接入层的用户流量进行本地路由、过滤、流量均衡（3）、ADSL上行速率在A、64Kbps~640 KbpsB、640Kbps~7MbpsC、7Mbps~10MbpsD、10Mbps~20Mbps（4）、下列关于IEEE802.16标准的描述中，错误的是A、提供宽带城域网用户访问Internet所需要的路由服务B、最高传输速率为234MbpsC、使用无线频段为10~66GHzD、与IEEE802.16标准工作组对应的论坛组织是WiMAX（5）、在网络需求详细分析中除包括网络总体需求分析、综合布线需求分析、网络可用性与可靠性分析、网络安全性需求分析，还需要做的工作是A、网络工程造价估算B、网络工程进度安排C、网络硬件设备选型D、网络带宽接入需求分析（6）、网络系统分层设计中层次之间的上联带宽与下一级带宽之比一般控制在A、1:1B、1:10C、1:20D、1:40（7）、一台交换机具有24个10/100Mbps全双工端口和2个1000Mbps全双工端口，如果所有端口都工作在全双工状态，那么该交换机总带宽应为A、4.4GbpsB、6.4 GbpsC、6.8 Gbps D8.8 Gbps（8）、某个IP地址的子网掩码为255.255.255.192，该掩码又可以写为A、/22B、/24C、/26D、/28（9）、将内部专用IP地址转换为外部公用IP地址的技术是A、RAPRB、NATC、DHCPD、ARP（10）、若某大学分配给计算机系的IP地址块为202.113.16.128/26，分配给自动化系的IP地址块为202.113.16.192/26，那么这两个地址块经过聚合后的地址为A、202.113.16.0/24B、202.113.16.0/25C、202.113.16.128/25D、202.113.16.128/24（11）、下列对IPv6地址FE80:0:0:0801:FE:0:0:04A1的简化表示中，错误的是A、FE8::801:FE:0:0:04A1B、FE80::801:FE:0:0:04A1C、FE80:0:0:801:FE::04A1D、FE80:0:0:801:FE::4A1(12)、下列关于路由信息协议RIP的描述中，错误的是A、路由刷新报文主要内容是由若干(V、D)组成的表B、矢量V标识该路由器可以到达的目的网络或目的主机的跳数C、路由器在接收到（V、D）报文后按照最短路径原则更新路由表D、要求路由器周期性地向外发送路由刷新报文（13）、下列关于OSPF协议的描述中，错误的是A、OSPF使用分布式链路状态协议B、链路状态协议“度量”主要是指费用、距离、延时、带宽等C、当链路状态发生变化时用洪泛法向所有路由器发送信息D、链路状态数据库中保存一个完整的路由表（14）、在不同AS之间使用的路由协议是A、RIPB、OSPFC、BGP-4D、ISIS（15）下列关于综合布线的描述中，错误的是A、终端有高速率要求时，水平子系统可采用光纤直接铺设到桌面B、多介质信息插座是用于连接双绞线C、干线线缆铺设经常采用点对点结合和分支结合两种方式D、采用在管理子系统中更改、增加、交换、扩展线缆的方式来改变线缆路由（16）网桥转发数据的依据是A、ARP表B、MAC地址表C、路由表D、访问控制列表（17）一台Cisco交换机和一台3COM交换机相连，相连端口都工作在VLAN trunk模式，这两个端口应使用的VLAN协议是A、ISL 和IEEE802.10B、ISL 和ISLC、ISL和 IEEE802.1QD、IEEE802.1Q和IEEE802.1Q（18）有3台交换机分别安装在办公楼的1~3层，同属于财务部门的6台PC机分别连接在这3台交换机的端口上，为了提高网络安全性和易管理性，最好的解决方案是A、改变物理连接，将6台PC机全部移动到同一层B、使用路由器，并用访问控制列表（ACL）控制主机之间的数据流C、产生一个VPN，并使用VTP通过交换机的Trunk传播给6台PC机D、在每台交换机上建立一个相同的VLAN,将连接6台PC机的交换机端口都分配到这个VLAN中（19）当交换机到根网桥的间接链路出现失效故障时（如图，链路L1失效），STP协议会将交换机C的阻塞端口的工作状态转换为转发状态，为了省去端口状态转换等待时间，让端口直接由侦听和学习状态转换为转发状态，需配置交换机 STP的可选功能是A、PortFastB、UplinkFastC、BackboneFastD、BPDU Filter（20）下列删除VLAN的命令中，无法执行的是A、no vlan 1B、no vlan 2C、no vlan 500D、no vlan 1000（21）当路由表中包含多种路由信息源时，根据缺省的管理距离值，路由器在转发数据包时，会选择的路由信息源是A、RIPB、IGRPC、OSPFD、Static（22）只封禁一台地址为193.62.40.230主机的access-list的正确配置是A、access-list 110 permit ip any anyaccess-list 110 deny ip host 193.62.40.230 anyaccess-list 110 deny ip any host 193.62.40.230B、access-list 110 deny ip host 193.62.40.230anyaccess-list 110 deny ip any host 193.62.40.230access-list 110 permit ip any anyC、access-list 110 deny ip host 193.62.40.230 anyaccess-list 110 deny ip any host 193.62.40.230D、access-list 110 deny ip host 193.62.40.230 anyaccess-list 110 permit ip any anyaccess-list 110 deny ip any host 193.62.40.230(23)在某园区网中，路由器R1的GE0/1(212.112.8.5/30)与路由器R2的GE0/1(212.112.8.6/30相连，R2的GE0/2(212.112.8.9/30)与R3的GE0/1(212.112.8.10/30)相连，R3的GE0/2(212.112.8.13/30)直接与Internet 上的路由器相连，路由器R1缺省路由的正确配置是A) ip route 0.0.0.0 0.0.0.0 212.112.8.6B) ip route 0.0.0.0 0.0.0.0 212.112.8.9C) ip route 0.0.0.0 0.0.0.0 212.112.8.10D) ip route 0.0.0.0 0.0.0.0 212.112.8.13(24)某局域网用一台路由器互连4个子网。
2009年英语专业四级考试真题及答案
PART III CLOZE [15 MIN]Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on Answer Sheet Two.Scientists around the world are racing to learn how to rapidly diagnose, treat and stop the spread of a new, deadly disease. SARS -- Severe Acute Respiratory Syndrome --- was (31) ____ for the first time in February 2003 in Hanoi, (32) _____ since then has infected more than 1,600 people in 15 countries, killing 63. At this (33) _____, there are more questions than answers surrounding the disease.Symptoms start (34) _____ a fever over 100.4 degrees F, chills, headache or body (35)____. Within a week, the patient has a dry cough, which might(36) _____ to shortness of breath. In 10% to 20% of cases, patients require(37)_____ ventilation to breathe. About 3.5% die from the disease. Symptoms (38)____ begin in two to seven days, but some reports suggest it (39) ____ take as long as 10 days. Scientists are close to (40) ____ a lab test to diagnose SARS. In the meantime, it is diagnosed by its symptoms. There is no evidence (41)____ antibiotics or anti-viral medicines help, (42) _____ doctors can offer only supportive care. Patients with SARS are kept in isolation to reduce the risk of(43) ____ Scientists aren't sure yet, but some researchers think it's a (44) ____ discovered coronavirus, the family of viruses that cause some common colds.Most cases appear to have been passed (45) ____ droplets expelled when infected patients cough or sneeze. Family members of infected people and medical workers who care (46) ____ them have been most likely to (47) ____ the illness. But recent developments in Hong Kong suggest that the (48) ____ might spread through air, or that the virus might (49) ____ for two to three hours on doorknobs or other (50)____. Health experts say it is unlikely, though, that sharing an elevator briefly with an infected person would be enough to pass the virus.(31) A. detected B. caught C. disclosed D. revealed(32) A. but B. and C. or D. yet(33) A. time B. point C. aspect D. instance(34) A. from B. over C. upon D. with(35) A. hurt B. sore C. aches D. feelings(36) A. process B. advance C. progress D. convert(37) A. automatic B. artificial C. mechanical D. controlled(38) A. regularly B. ordinarily C. traditionally D. generally(39) A. will B. might C. should D. must(40) A. cultivating B. fostering C. developing D. designing(41) A. which B. that C. whether D. what(42) A. so B. but C. still D. yet(43) A. communication B. transportation C. transformation D. transmission(44) A. lately B. newborn C. newly D. renewed(45) A. under B. through C. beneath D. from(46) A. for B. over C. after D. about(47) A. acquire B. receive C. obtain D. contract(48) A. ailment B. ill-health C. disease D. infection(49) A. continue B. linger C. delay D. persist(50) A. exteriors B. outside C. surfaces D. coveringsPART IV GRAMMAR & VOCABULARY [15 MIN]There are thirty sentences in this section. Beneath each sentence there are four words or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentence. Mark your answers on Answer Sheet Two.51. What a nice day! How about the three of us _____ a walk in the park nearby?A. to takeB. takeC. takingD. to be taking52. If there were no subjunctive mood, English _____ much easier to learn.A. could have beenB. would'beC. will beD. would have been53. She _____ fifty or so when I first met her at a conference.A. had beenB. must beC. has beenD. must have been54. _____ the boss says, it is unreasonable to ask me to work overtime without pay.A. WhateverB. WheneverC. WhicheverD. However55. A new laptop costs about _____ of a second-hand one.A. the price of three timesB. three times the priceC. as much as the three times priceD. three times more than the price56. I was very interested in _____ she told me.A. all thatB. all whichC. all whatD. that57. We consider ______ he should have left without telling anyone beforehand.A. strange whyB. it strange whatC. it strange thatD. that strange58. It is going to be fine tomorrow. _______.A. So is it.B. So it is.C. So it does.D. So does it.59. Little _____ about her own safety, though she herself was in great danger.A. she caredB. she may careC. may she careD. did she care60. The couple had no sooner got to the station _____ the coach left.A. whenB. asC. untilD. than61. Aren't you tired? I ____ you had done enough for today.A. should have thoughtB. must have thoughtC. might have thoughtD. could have thought62. "It seems that she was there at the conference." The sentence means thatA. she seems to be there at the conference.B. she seemed to be there at the conference.C. she seems to have been there at the conference.D. she seemed to being there at the conference.63. Which of the following adverbs can NOT be used to complete " _____ everybody came"?A. NearlyB. QuiteC. PracticallyD. Almost64. In "How much do you think he earns?" how much is ______ of the sentence.A. the subjectB. the adverbialC. the objectD. the complement65. "The man preparing the documents is the firm's lawyer" has all the following possible meanings EXCEPTA. the man who has prepared the documents...B. the man who has been preparing the documents...C. the man who is preparing the documents...D. the man who willprepare the documents...66. During the TV interview, the singer announced that he was going to _____ his new album soon.A. releaseB. renewC. relieveD. rehearse67. Afterworking for the firm for ten years, he finally _____ the rank of deputy director.A. achievedB. approachedC. attainedD. acquired68. Winter is the _____ season at most hotels in this seaside town, because very few tourists come to stay.A. slowB. slackC. lowD. quiet69. Come on, Jack, tell me the story. Don't keep me in ______.A. suspenseB. suspendingC. suspensionD. suspender70. The football match was _____ because of the heavy rain.A. called overB. called upC. called outD. called off71. We had a good time there, and the food was plentiful and _____.A. conduciveB. wholesomeC. helpfulD. appreciative72. It was strange that she would _____ such an absurd idea.A. allowB. stickC. takeD. entertain73. The scientists have made an _____ study of the viruses that cause the disease.A. exhaustedB. exhaustingC. exhaustiveD. exhaustion74. Do you own your apartment or are you a ______ ?A. tenantB. customerC. clientD. proprietor75. Representatives from the companies indicated that they should go on working together in _____.A. unityB. entityC. partnersD. partnership76. We all know that Mary has had a strict _____.A. growthB. upbringingC. developmentD. cultivation77. The drink was packaged in champagne bottles and was being _____ as the real stuff.A. passed outB. passed byC. passed overD. passed off78. Last Sunday she came to visit us out of the blue. The italicized phrase meansA. unexpectedlyB. unhappilyC. untidilyD. unofficially79. The person he interviewed was _____ his former schoolmate.A. no other thanB. no more thanC. none other thanD. none the less80. The young employee has a(n)______ quality - he is totally honest.A. respectableB. admirableC. decentD. approachablePART V READING COMPREHENSION [25 MIN]In this section there are four passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the one that you think is the best answer. Mark your answers on Answer Sheet Two.TEXT ADo you realize that every time you take a step, the bones in your hip are subjected to forces between four and five times your body weight? When you are running, this force is increased further still. What happens if through disease a hip-joint ceases to be able to resist such forces? For many years hip-joints and other body joints have been replaceable either partially or completely. It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment. Any engineer will recognize these ascharacteristic of a typical engineering problem, which doctors and engineers have worked together to solve, in order to bring a fresh lease of life to people who would otherwise be disabled.This typifies the way in which engineers work to help people and create a better quality of life. The fact that this country has the most efficient agricultural industry in the world is another good example. Mechanical engineers have worked with farmers and biologists to produce fertilizers, machinery and harvesting systems. This team effort has now produced crops uniformly waist high or less so that they are better suited to mechanical harvesting. Similar advances with other crops have released people from hard and boring jobs for more creative work, whilst machines harvest crops more efficiently with less waste. Providing more food for the rapidly increasing population is yet another role for the mechanical engineer.81. According to the passage, when would most weight be imposed onhip-joints?A. When one is walking.B. When one is running.C. When one is standing.D. When one is lying down.82. Engineers regard the replacement of hip-joints as a(n) ____ Problem.A. mechanicalB. medicalC. healthD. agricultural83. According to the passage, how do engineers contribute to increasing efficiency of theagricultural industry?A. By working with farmers.B. By working in teams.C. By growing crops of the same height.D. By making agricultural machinery.84. According to the context, "This team effort'" in Paragraph Two refers toA. mechanical engineers.B. doctors and engineers.C. biologists, doctors and farmers.D. farmers, biologists and engineersTEXT BNowadays, a cellphone service is available to everyone, everywhere. Probably thousands of people have already been using it, but I just discovered it, so I'm going to claim it and also name it: Fake Foning.The technology has been working well for me at the office, but there are infinite applications. Virtually in any public space.Say you work at a big university with lots of talky faculty members buzzing about. Now, say you need to use the restroom. The trip down the hall will take approximately one hour, because a person can't walk into those talky people without getting pulled aside for a question, a bit of gossip, a new read on a certain line of Paradise Lost.So, a cellphone. Any cellphone. Just pick it up. Don't dial. Just hold that phone to your face and start talking. Walk confidently down the hall engaged in fake conversation, making sure to tailor both the topic and content to the person standing before you whom you are trying to evade. For standard colleague avoidance, I suggest fake chatting about fake business:"Yes, I'm glad you called, because we really need to hammer out the details. What's that? Yes, I read Page 12, but if you look at the bottom of 4, I think you can see the problem begins right there."Be animated. Be engaged in your fake fone conversation. Make eye contact with the people passing, nod to them, gesture keen interest in talking to them at a later time, point to your phone, shrug and move on.Shoppers should consider fake foning anytime they spot a talky neighbor in the produce departmentpinching (用手捏) unripe peaches. Without your phone at your face, you'd be in for a 20-minute speech on how terrible the world is.One important caution about fake foning. The other day I was fake foning my way past a colleague, and he was actually following me to get my attention. I knew he wanted to ask about a project I had not yet finished.I was trying to buy myself some time, so I continued fake foning with my doctor. "So I don't need the operation? Oh, doctor, that is the best news."And then: Brrrrrrng! Brrrrrmg! Brrrrrmg! My phone started ringing, right there while it was planted on my face. My colleague looked at me, and I at him, and naturally I gasped. "What is the matter with this thing?" I said, pulling the phone away to look at it, and then putting it back to my ear."Hello? Are you still there?"Oops.85. Which of the following statements is INCORRECT?A. Cellphone service is popular among people.B. Cellphone has much use in office.C. Fake foning is a new cellphone service.D. Fake foning is a new discovery.86. What is fake foning?A. A strategy to avoid people.B. A device newly produced.C. A service provided everywhere.D. A skill of communication.87. In the author's opinion, in order to make fake foning look real one has toA. talk about interesting matters.B. behave politely to people passing by.C. hold the phone while walking.D. appear absorbed in conversation.88. What does the last example show?A. One effective way is to fake fone one's doctor.B. One has to be careful while fake foning.C. Fake foning may not deceive people.D. Fake foning is always quite successful.89. After his phone suddenly began ringing, the authorA. immediately started talking to the caller.B. immediately started talking to his colleague.C. put the phone away and stopped talking.D. continued with his fake conversation.90. What is the tone of the passage?A. Critical.B. Humorous.C. Serious.D. Unclear.TEXT CIt was late in the afternoon, and I was putting the final touch on a piece of writing that I was feeling pretty good about. I wanted to save it, but my cursor had frozen. I tried to shut the computer down, and it seized up altogether. Unsure of what else todo, I yanked (用力猛拉) the battery out.Unfortunately, Windows had been in the midst of a delicate and crucial undertaking. The next morning, when I turned my computer back on, it informed me that a file had been corrupted and Windows would not load. Then, it offered to repair itself by using the Windows Setup CD.I opened the special drawer where I keep CDs. But no Windows CD in there.I was forced to call the computer company's Global Support Centre. My call was answered by a woman in some unnamed, far-off land. I find it annoying to make small talk with someone when I don't know what continent they're standing on. Suppose I were to comment on the beautiful weather we've been having when there was a monsoon at the other end of the phone? So I got right to the point."My computer is telling me a file is corrupted and it wants to fix itself, but I don't have the Windows Setup CD.""So you're having a problem with your Windows Setup CD." She has apparently been dozing and, having come to just as the sentence ended, was attempting to cover for her inattention.It quickly became clear that the woman was not a computer technician. Her job was to serve as a gatekeeper, a human shield for the technicians. Her sole duty, as far as I could tell, was to raise global stress levels.To make me disappear, the woman gave me the phone number for Windows' creator, Microsoft. This is like giving someone the phone number for, I don't know, North America. Besides, the CD worked; I just didn't have it. No matter how many times I repeated my story, we came back to the same place. She was calm and resolutely polite.When my voice hit a certain decibel (分贝), I was passed along, like a hot, irritable potato, to a technician."You don't have the Windows Setup CD, ma'am, because you don't need it," he explained cheerfully."Windows came preinstalled on your computer!""But I do need it.""Yes, but you don't have it." We went on like this for a while. Finally, he offered to walk me through the use of a different CD, one that would erase my entire system. "Of course, you'd lose all your e-mail, your documents, your photos." It was like offering to drop a safe on my head to cure my headache. "You might be able to recover them, but it would be expensive." He sounded delighted. "And it's not covered by the warranty (产品保证书)!" The safe began to seem like a good idea, provided it was full.I hung up the phone and drove my computer to a small, friendly repair place I'd heard about. A smart, helpful man dug out a Windows CD and told me it wouldn't be a problem. An hour later, he called to let me know it was ready. I thanked him, and we chatted about the weather, which was the same outside my window as it was outside his.91. Why did the author shut down her computer abruptly?A. She had saved what she had written.B. She couldn't move the cursor.C. The computer refused to work.D. The computer offered to repair itself.92. Which of the following is the author's opinion about the woman at the Global Support Centre?A. She sounded helpful and knowledgeable.B. She was there to make callers frustrated.C. She was able to solve her computer problem.D. She was quick to pass her along to a technician.93. According to the passage, the solution offered by the technician wasA. effective.B. economical.C. unpractical.D. unacceptable.94. "It was like offering to drop a safe on my head to cure my headache" in the last but one paragraph means thatA. the technician's proposal would make things even worse.B. the technician's proposal could eventually solve the problem.C. files stored on her computer were like a safe.D. erasing the entire system was like curing a headache.95. It can be inferred from the passage that the differences between the Global Support Centre and the local repair shop lie in all the following EXCEPTA. efficiency.B. location.C. setup CDs.D. attitudeTEXT DNot long ago, a mysterious Christmas card dropped through our mail slot. The envelope was addressed to a man named Raoul, who, I was relatively certain, did not live with us. The envelope wasn't sealed, so I opened it. The inside of the card was blank. Ed, my husband, explained that the card was both from and to the newspaper deliveryman. His name was apparently Raoul, and Raoul wanted a holiday tip. We were meant to put a check inside the card and then drop the envelope in the mail. When your services are rendered at 4 a.m., you can't simply hang around, like a hotel bellboy expecting a tip. You have to be direct.So I wrote a nice holiday greeting to this man who, in my imagination, fires The New York Times from his bike aimed at our front door, causing more noise with mere newsprint than most people manage with sophisticated black market fireworks.With a start, I realized that perhaps the reason for the 4 a.m. wake-up noise was not ordinary rudeness but carefully executed spite: I had not tipped Raoul in Christmases past. I honestly hadn't realized I was supposed to. This was the first time he'd used the card tactic. So I got out my checkbook. Somewhere along the line, holiday tipping went from an optional thank-you for a year of services to a Mafia-style protection racket (收取保护费的黑社会组织).Several days later, I was bringing our garbage bins back from the curb when I noticed an envelope taped to one of the lids. The outside of the envelope said MICKEY. It had to be another tip request, this time from our garbage collector. Unlike Raoul, Mickey hadn't enclosed his own Christmas card from me. In a way, I appreciated the directness. "I know you don't care how merry my Christmas is, and that's fine," the gesture said. "I want $30, or I'll 'forget' to empty your garbage bin some hot summer day."I put a check in the envelope and taped it back to the bin. The next morning, Ed noticed that the envelope was gone, though the trash hadn't yet been picked up: "Someone stole Mickey's tip!" Ed was quite certain. He made me call the bank and cancel the check.But Ed had been wrong. Two weeks later, Mickey left a letter from the bank on our steps. The letter informed Mickey that the check, which he had tried to cash, had been cancelled. The following Tuesday morning, when Ed saw a truck outside, he ran out with his wallet. "Are you Mickey?"The man looked at him with scorn. "Mickey is the garbageman. I am the recycling." Not only had Ed insulted this man by hinting that he was a garbageman, but he had obviously neglected to tip him. Ed ran back insidefor more funds. Then he noticed that the driver of the truck had been watching the whole transaction. He peeled off another twenty and looked around, waving bills in the air. "Anyone else?"Had we consulted the website of the Emily Post Institute, this embarrassing breach of etiquette (礼节) could have been avoided. Under "trash/recycling collectors" in the institute's Holiday Tipping Guidelines, it says: "$10 to $30 each." You may or may not wish to know that your pet groomer, hairdresser, mailman and UPS guy all expect a holiday tip.96. The newspaper deliveryman put a blank card inside the envelope becauseA. he forgot to write a few words on it.B. he wanted the couple to send it back.C. he used it to ask for a Christmas tip.D. he was afraid of asking for a tip in person.97. From the passage, we learn that the authorA. didn't like Raoul's way of delivering the paper.B. didn't realize why Raoul delivered the paper that way.C. didn't know that Raoul came very early in the morning.D. didn't feel it necessary to meet Raoul when he came.98. According to the passage, the author felt ____ to give Raoul a holiday tip.A. excitedB. delightedC. embarrassedD. forced99. Which of the following is CORRECT about Mickey, the garbage collector?A. He wrote a letter to the couple afterwards.B. He failed to collect the money from the bank.C. He wanted the couple to send him a Christmas card.D. He collected both the cheek and the garbage that day.100. Ed's encounter with the recycling team shows thatA. Ed was desperate to correct his mistake.B. Ed only wanted to give money to Raoul.C. Ed was unwilling to tip the truck driver.D. Ed no longer wanted to give them money.PART VI WRITING [45 MINI]SECTION A COMPOSITION [35 MIN]Tourism is a booming business in China. However, some people worry that too many tourists may bring harm to the environment, while others don'tthink so. What is your opinion? Write on ANSWER SHEET THREE a composition of about 200 words on the following topic:Will Tourism Bring Harm to the Environment?You are to write in three parts.In the first part, state specifically what your opinion is.In the second part, provide one or two reasons to support your opinion. In the last part, bring what you have written to a natural conclusion or make a summary.Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.SECTION B NOTE-WRITING [10 MIN]Write on ANSWER SHEET THREE a note of about 50-60 words based on the following situation:Lily, your roommate, is looking for a part-time job in the coming summer vacation. You saw an ad for a private English tutor for a schoolboy. Write her a note, telling her what the job is and strongly recommending it to her.Marks will be awarded for content, organization, grammar and appropriateness参考答案DICTATIONFor many people in the west, New Year’s Eve is the biggest party of the year. It’s time to get togethor with friends or family and welcome in the coming year. New Year’s parties can take place in different places. Some people hold a house party; others attend street parties, while some just go for a few drinks with their friends. Big cities have large and spectacularfireworks displays. There is one thing that all New Year’s Eve parties have in common, the countdown to midninght. When the clock strikes 12, people give a loud cheer and sing songs. It’s also popular to make a promise in the New Year. This is called a New Year’s resolution. Typical resolutions include giving up smoking and keeping fit. However the promise is often broken quite quickly and people are back into their bad habits within weeks or days.1. B2.C3.D4.C5. A6.D7.B8.C9. A 10.D11.C 12.A 13.B 14. B 15. D16.A. 17.D 18.C 19.D 20.A21.B 22.C 23.A 24.B 25.A26.A 27.B 28.C 29.A 30.C31. A detected 32. B and 33. B point 34. D with 35. C aches36. A progress 37. C mechanical 38. D generally 39. B might 40. C developing41. B that 42. A so 43. D transmission 44. C newly 45. B through46. A for 47. D contract 48. C disease 49. B linger 50. C surfaces51. C 52. B 53. D 54. A 55. B56. A 57. C 58. A 59. D 60. D61. A 62. C 63. B 64. C 65. D66. A 67. C 68. B 69. A 70. D71. B 72. D 73. C 74. A 75. D76. B 77. D 78. A 79. C 80. CText A81. B When one is running82. A Mechanical83. D By making agricultural machinery84. D Farmers, biologists and engineersText B85. C Fake foning is a new cellphone service86. A A strategy to avoid people87. D Appoeared absorded in conversation88. B One has to be careful while fake foning89. B Immediately started tallking to his colleague.90. B HumorousText C91. B She couldn't move the cursor92. B She was there to make the callers frustrated93. D Unacceptable94. A The technician's proposal would make things even worse95. C setup CDsText D96. C He used it to ask for a Christmas tip97. B Didn't realize why Raoul delivered the paper that way98. D Forced99. B He failed to collect the money from the bank100.A ED was desperate to correct his mistake。
2009年英语专业四级考试真题及答案2
PART IV GRAMMAR & VOCABULARY [15 MIN]There are thirty sentences in this section. Beneath each sentence there are four words or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentence. Mark your answers on Answer Sheet Two.51. What a nice day! How about the three of us _____ a walk in the park nearby?A. to takeB. takeC. takingD. to be taking52. If there were no subjunctive mood, English _____ much easier to learn.A. could have beenB. would'beC. will beD. would have been53. She _____ fifty or so when I first met her at a conference.A. had beenB. must beC. has beenD. must have been54. _____ the boss says, it is unreasonable to ask me to work overtime without pay.A. WhateverB. WheneverC. WhicheverD. However55. A new laptop costs about _____ of a second-hand one.A. the price of three timesB. three times the priceC. as much as the three times priceD. three times more than the price56. I was very interested in _____ she told me.A. all thatB. all whichC. all whatD. that57. We consider ______ he should have left without telling anyone beforehand.A. strange whyB. it strange whatC. it strange thatD. that strange58. It is going to be fine tomorrow. _______.A. So is it.B. So it is.C. So it does.D. So does it.59. Little _____ about her own safety, though she herself was in great danger.A. she caredB. she may careC. may she careD. did she care60. The couple had no sooner got to the station _____ the coach left.A. whenB. asC. untilD. than61. Aren't you tired? I ____ you had done enough for today.A. should have thoughtB. must have thoughtC. might have thoughtD. could have thought62. "It seems that she was there at the conference." The sentence means thatA. she seems to be there at the conference.B. she seemed to be there at the conference.C. she seems to have been there at the conference.D. she seemed to being there at the conference.63. Which of the following adverbs can NOT be used to complete " _____ everybody came"?A. NearlyB. QuiteC. PracticallyD. Almost64. In "How much do you think he earns?" how much is ______ of the sentence.A. the subjectB. the adverbialC. the objectD. the complement65. "The man preparing the documents is the firm's lawyer" has all the following possible meanings EXCEPTA. the man who has prepared the documents...B. the man who has been preparing the documents...C. the man who is preparing the documents...D. the man who willprepare the documents...66. During the TV interview, the singer announced that he was going to _____ his new album soon.A. releaseB. renewC. relieveD. rehearse67. Afterworking for the firm for ten years, he finally _____ the rank of deputy director.A. achievedB. approachedC. attainedD. acquired68. Winter is the _____ season at most hotels in this seaside town, because very few tourists come to stay.A. slowB. slackC. lowD. quiet69. Come on, Jack, tell me the story. Don't keep me in ______.A. suspenseB. suspendingC. suspensionD. suspender70. The football match was _____ because of the heavy rain.A. called overB. called upC. called outD. called off71. We had a good time there, and the food was plentiful and _____.A. conduciveB. wholesomeC. helpfulD. appreciative72. It was strange that she would _____ such an absurd idea.A. allowB. stickC. takeD. entertain73. The scientists have made an _____ study of the viruses that cause the disease.A. exhaustedB. exhaustingC. exhaustiveD. exhaustion74. Do you own your apartment or are you a ______ ?A. tenantB. customerC. clientD. proprietor75. Representatives from the companies indicated that they should go on working together in _____.A. unityB. entityC. partnersD. partnership76. We all know that Mary has had a strict _____.A. growthB. upbringingC. developmentD. cultivation77. The drink was packaged in champagne bottles and was being _____ as the real stuff.A. passed outB. passed byC. passed overD. passed off78. Last Sunday she came to visit us out of the blue. The italicized phrase meansA. unexpectedlyB. unhappilyC. untidilyD. unofficially79. The person he interviewed was _____ his former schoolmate.A. no other thanB. no more thanC. none other thanD. none the less80. The young employee has a(n)______ quality - he is totally honest.A. respectableB. admirableC. decentD. approachable。
2024年3月计算机等级考试四级笔试真题与答案
机密★启用前 2009年3月全国计算机等级考试四级笔试试卷 网络工程师 （考试时间120分钟，满分100分） 一、选择题《每小题1分.共想分） 下列各题A）、BXC）>D）四个选项中，只有一个选项是正谈的，请将正确选项涂写在答器卡相应竹置上，答 在试卷上不得分“ （I）下列关乎光舒同轴电缆混合网HFC灼描述中，惜误的毡 HFC是一个单向传输系统 HFC改善了信号传硅王鬣，提高了系统可非性 HFC光纤结点通过同轴电缆卜引线可以为500到2000个用户服务 D>HFC通过CableModem将用户计算机与同轴电缆连接起来 F列关于无线局域网802.11标准的描述中，错误的是 802Jl标准定义了无线冏域网的物理层与MAC层协议 802.11标准定义了两类设备，即无线结点与无线接入点 C）无线接入点在无线与有戏网络之间起到桥接的作用
D）建立邮IT路由时，要在DNS服务器中建立郃件服务器主机记录
（33）Windows2003对已备份文件在备份后不做标记的备份方法是
A）正常备份 B）差异备价 C）增量备份 D）副本备份
〈34）CiscoHX525防火墙川于实现内部和外部地址商定映射的配置命令是
A>nat
B）static
C>globalD）fixup
（29）下列关于Wind。WS2003系统DHCP服务器安装、配置和使用的描述中，结识的是A）地坨租均期限的 母小可调整单位是分钟
B）客户机的地址租约续订是由客户端软件自动完成的 C）添加排除时必须输入起始IP地址和结束IP地址 D）新建作用域后必须激活才可为客户机分配地址 （30）下列关于Wind。Ws2003笈统WCb服务器安装、配置和使用的描述中，错误的是 A）建立WCb站点时必须为该站点指定一个书目录 B）访问Web站点时必须使用站点的域名 若WCb站点未设置鼠认内容文档，访向站点时必须提供首页内容的文件名D）Web站点的性能选项包括影响带 宽使用的属性和客户端Web连接的数月 （31）下列关于SCrVJJFTP服务粹安装、配置和使用的描述中，错误的是 FTP服务黯可以设置般大上传速度 FTP那务相的域创建完成后，客户端即可使用匿名用户访问 对用户数大于500的域，将域存放在注册表中可提供更布的性能 D）通过设HIP访问可以控制某些IP地址对ITP服务器的访问
2009年大学英语四级（CET-4）真题答案
2009年大学英语四级（CET-4）真题答案2009年大学英语四级(CET-4)真题答案真题试卷A卷Part I Writing (30 minutes)注意：此部分试题在答题卡1上。
Directions: For this part, you are allowed 30 minutes to write a short essay on the topic of Free Admission to Museums. You should write at least 120 words following the outline given below:1. 越来越多的博物馆免费开放的目的是什么？2. 也会带来一些问题3. 你的看法Part II Reading Comprehension (Skimming and Scanning) (15 minutes)Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1-7, choose the best answer from the four choices marked A),B),C )and D). For questions 8-10, complete the sentences with the information given in the passage.How Do You See DiversityAs a manager, Tiffany is responsible for interviewing applicants for some of the positions with her company. During one interview, she noticed that the candidate never made direct eye contact. She was puzzled and somewhat disappointed because she liked the individual otherwise.He had a perfect resume and gave good responses to her questions, but the fact that he never looked her in the eye said “untrustworthy,” so she decided to offer the job to her second choice. “It wasn?t u ntil I attended a diversity workshop that I realized the person we passed over was the per fect person,”Tiffany confesses. What she hadn?t known at the time of the interview was Opt the candidate?s “different” behavior was simply a cultural misunderstanding. He was an Asian-American raised in a household where respect for those in authority was shown by averting(避开) your eyes.“I was just thrown off by the lack of eye contact; not realizing it was cultural,” Tiffany says. “I missed out, but will not miss t hat opportunity again.”Many of us have had similar encounters with behaviors we perceive as different. As the world becomes smaller and our workplaces more diverse, it is becoming essential to expand our understanding of others and to reexamine some of our false assumptions.Hire AdvantageAt a time when hiring qualified people is becoming more difficult, employers who can eliminate invalid biases(偏见) from the process have a distinct advantage. My company, Mindsets LLC, helps organizations and individuals see their own blind spots.A real estate recruiter we worked with illustrates the positive difference suchtraining can make.“During my Mindsets coa ching session, I was taught how to recruit a diversified workforce. I recruited people from different cultures and skill sets. The agents were able to utilize their full potential and experiences to build up the company. When the real estate teethes began to change, it was because we had a diverse agent pool that we were able to say in the real estate market much longer than others in the same profession.”…Blinded by GenderDale is an account executive who attended one of my workshops on supervising a dive rse workforce. “Through one of the sessions, I discovered my personal bias,” he recalls. “I learned I had not been looking at a person as a whole person, and being open to differences.” In his case, the blindness was not about culture but rather gender.“I had a management position open in toy department; and the two finalists were a man and a woman. lied I not attended this workshop, I would have automatically assumed the man was the best candidate because the position required quite a bit of extensive travel. My reasoning would have been that even though both candidates were great and could have been successful in the position, I assumed the woman would have wanted to he home with her children and not travel.” Dale?s assumptions are another example of the well-Intentioned but incorrect thinking that limits an organization?s ability to tap into the full potential of a diverse workforce.“I learned from the class that instead of imposing my gender biases into the situation.I needed to present the full range of duties, responsibilities and expectations to all candidates and allots them to make an informed dec ision.” Dale credits the workshop, “because it helped me make decisions based on fairness.”Year of the Know-It-AllDoug is another supervisor who attended one of my workshops. Fie recalls a major lesson learned from his own employee.“One of my most embar rassing moments was when I had a Chinese-American employee put in a request to take time off to celebrate Chinese New Year. In my ignorance, I assumed he hadhis dates wrong?, as the first of January had just passed. When I advised him of this, I gave him a tong talking-to about turning in requests early with the proper dates.“He patiently waited, then when I was done, he said he would like Chinese New Yea r off, not the Western New Year. He explained politely that in his culture the new year did not begin January first, and that Chinese New Year, which is tied to the lunar cycle, is one of the most celebrated holidays on the Chinese calendar. Needless to say, I felt very embarrassed in assuming he had his dates mixed up. But I learned a great deal about assumptions, and that the timing of holidays varies considerably from culture to culture.“Attending the diversity workshop helped me realize how much I coul d learn by simply asking questions and creating dialogues with toy employees, rather than making assumptions and trying to be a know-it-all,” Doug admits. “The biggest thing I took away from the workshop is learning how to be more …inclusive? to differences.”A Better Bottom LineAn open mind about diversity not only improves organizations internally, it is profitable as well. These comments from a customer service representative show how an inclusive attitude can improve sales. “Most of my customers speak English as a second language. One of the best things my company has done is to contract with a language service that offers translations over the phone. It wasn?t until my boss received Mindsets? training that she was able to understand how importantinclu siveness was to customer service. As a result, Oct customer base has increased.”Once we start to se e people asindividuals, and discard the stereotypes, we can move positively toward inclusiveness for everyone. Diversity is about coming together and taking advantage of our differences and similarities. It is about building better communities and organizations that enhance us as individuals and reinforce our shared humanity.When we begin to question our assumptions and challenge what we think we have learned from Oct past, from the media, peers, family, friends, etc., toe begin to realize that some of our conclusions are flawed(有缺陷的) or contrary to our fundamental values. We need to van) ourselves to think differently, shift our mindsets and realize that diversity opens doors for all of us, creating opportunities in organizations and communities that benefit everyone.注意：此部分试题请在答题卡1上作答。
2009英语专业四级考试试题及参考答案
2009英语专业四级考试试题及参考答案Listen to the following passage. Altogether the passage will be read to you four times. Durin g the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase b y phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given 2 minutes to check throug h your work once more.Please write the whole passage on ANSWER SHEET ONE.PART II LISTENING COMPREHENSION [20 MIN]In Sections A B and C you will hear everything ONCE ONLY. Listen carefully and then ans wer the questions that follow. Mark the correct answer to each question on Answer Sheet Two.SECTION A CONVERSATIONSIn this section you will hear several conversations. Listen to the conversations carefully and t hen answer the questions that follow.Questions 1 to 3 are based on the following conversation. At the end of the conversation, y ou will be given 15 seconds to answer the questions. Now, listen to the conversation.1. Mark is unhappy because ofA. his Chemistry homework.B. a girl in his class.C. Linda’s words.D. Friday night’s party.2. Which of the following is CORRECT?A. Linda is Jane’s friend.B. Mark is Jane’s boyfriend.C. John is Jane’s boyfriend.D. Mark and John are good friends.3. Did Mark eventually take Linda’s advice?A. No.B. Partly.C. Completely.D. Not mentioned.Questions 4 to 7 are based on the following conversation. At the end of the conversation, y ou will be given 20 seconds to answer the questions. Now, listen to the conversation.4. About the scratch on the product, the shop assistant thinks thatA. the customer made it himself.B. there was definitely not one then.C. the customer should have checked.D. the customer was making trouble.5. The customer was ______ when told he might not have worn the headphones properly.A. annoyedB. surprisedC. indifferentD. worried6. How many complaints did the customer make about the product altogether?A. Five.B. Four.C. Three.D. Two.7. The shop could exchange the product if the customerA. makes no more complaints.B. can produce the receipt.C. is still unhappy with it.D. brings it back within a week.Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation.8. Joe Smith telephoned Victoria forA. the menu.B. the place.C. the reception.D. the campaign.9. When will the lunch be held?A. Friday next week.B. Thursday next week.C. April 30th.D. This week.10. All the following information is new to Victoria EXCEPTA. how many people to attend it.B. why to hold it.C. where to hold it.D. what to cook.SECTION B PASSAGESIn this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.Questions 11 to 13 are based on the following passage. ,4t the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.11. People choose London for post-Christmas shopping becauseA. shops open early in the morning.B. shops stay open for longer hours.C. they can buy really cheap things.D. they can shop with their friends.12. We learn from the passage thatA. people are very keen on sales.B. post-Christmas sales start at 3:30am.C. post-Christmas sales last for a day.D. sales include only a few items.13. Which of the following is NOT mentioned in the passage?A. Some people buy Christmas presents in the sales.B. Some people shop online during the sales.C. Some people buy presents for next Christmas.D. Online retailers offer better post-Christmas sales.Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now, listen to the passage.14. Ballroom dancing used to be associated withA. TV shows.B. old people.C. celebrities.D. professional dancers.15. According to the passage, recent popularity of ballroom dancing is the result ofA. the participation of celebrities.B. the designing of colourful costumes.C. the benefits it brings.D. a TV programme.16. Which of the following is NOT mentioned about the TV show?A. Performers have to be formally dressed on the show.B. Each professional dancer dances with a celebrity.C. People on the show perform a different dance every week.D. The show runs for about four months.17. According to the passage, the TV show has the greatest impact onA. old people.B. middle-aged people.C. kids and young people.D. all of the above.Questions 18 to 20 are based on the following passage. At the end of the passage, you will be give n 15 seconds to answer the questions. Now, listen to the passage.18. According to New Zealand’s rules about naming children, which of the following names isNOT acceptable?A. Spiderman.B. Gandalf.C. 2win.D. Arsenal.19. According to the passage, unusual names come fromA. popular culture.B. parents’ invention.C. sports.D. all of the above.20. All of the following countries have strict rules about naming children EXCEPTA. Algeria.B. Germany.C. Japan.D. Argentina.SECTION C NEWS BROADCASTIn this section, you will hear several news items. Listen to them carefully and then answer the quest ions that follow.Questions 21 to 23 are based on the following news. At the end of the news item, you will be giv en 15 seconds to answer the questions. Now. listen to the news.21. Why were the fishing crew stranded on Oct. 10th?A. They went to a remote area.B. Their fishing boats collided.C. They tried to repair their boats.D. They decided to stay in the boats.22. How did they survive during those three months?A. On supplies they brought with them.B. On supplies sent to them by rescue teams.C. On supplies left at the military base.D. Not mentioned in the passage.23. How were the crew rescued eventually?A. By helicopter.B. By boat.C. By radio contact.D. By a search team.Questions 24 and 25 are based on the following news. At the end of the news item, you will be gi ven 10 seconds to answer the questions. Now, listen to the news.24. Juan Carlos has been King of SpainA. since 1981.B. for 32 years.C. for 70 years.D. for 17 years.25. What is the news item mainly about?A. The King’s birthday.B. The stability of the monarchy.C. Criticism from both the left and the right.D. The King’s public defence of his reign.Questions 26 and27 are based on the following news. At the end of the news item, you will be giv en 10 seconds to answer the questions. Now, listen to the news.26. The three suicide bombings occurred inA. November and December.B. October and November.C. November.D. December.27. Did people die in the bombings?A. No one died in the bombings.B. Yes. In one of the bombings.C. Yes. In two of the bombings.D. Yes. In all the bombings.Questions 28 to 30 are based on the following news. At the end of the news item, you will be giv en 15 seconds to answer the questions. Now, listen to the news.28. What is the purpose of the national survey?A. To collect data on sources of pollution.B. To identify pollution in rivers and lakes.C. To help control environmental pollution.D. To help control industrial wastes.29. According to the news item, efforts of environmental protection are especially affected byA. lack of technology.B. rapid economic growth.C. unknown pollution sources.D. shortage of manpower.30. Which of the following details is CORRECT according to the news item?A. Census offices are set up by government departments.B. A main centre receives reports from provinces.C. A database is set up for each province.D. Data will be reviewed and analyzed in mid-2009.PART III CLOZE [15 MIN]Decide which of the choices given below would best complete the passage if inserted in the corresp onding blanks. Mark the best choice for each blank on Answer Sheet Two.Scientists around the world are racing to learn how to rapidly diagnose, treat and stop the spread of a new, deadly disease. SARS -- Severe Acute Respiratory Syndrome --- was (31) ____ for the first tim e in February 2003 in Hanoi, (32) _____ since then has infected more than 1,600 people in 15 countries, killing 63. At this (33) _____, there are more questions than answers surrounding the disease.Symptoms start (34) _____ a fever over 100.4 degrees F, chills, headache or body (35)____. Within a week, the patient has a dry cough, which might (36) _____ to shortness of breath. In 10% to 20% of cases, patients require (37)_____ ventilation to breathe. About 3.5% die from the disease. Symptoms (38)____ begin in two to seven days, but some reports suggest it (39) ____ take as long as 10 days. Scie ntists are close to (40) ____ a lab test to diagnose SARS. In the meantime, it is diagnosed by its sympt oms. There is no evidence (41)____ antibiotics or anti-viral medicines help, (42) _____ doctors can offeronly supportive care. Patients with SARS are kept in isolation to reduce the risk of(43) ____ Scientists aren’t sure yet, but some researchers think it’s a (44) ____ discovered coronavirus, the family of viruses that cause some common colds.Most cases appear to have been passed (45) ____ droplets expelled when infected patients cough or sneeze. Family members of infected people and medical workers who care (46) ____ them have been mo st likely to (47) ____ the illness. But recent developments in Hong Kong suggest that the (48) ____ mig ht spread through air, or that the virus might (49) ____ for two to three hours on doorknobs or other (5 0)____. Health experts say it is unlikely, though, that sharing an elevator briefly with an infected person would be enough to pass the virus.(31) A. detected B. caught C. disclosed D. revealed(32) A. but B. and C. or D. yet(33) A. time B. point C. aspect D. instance(34) A. from B. over C. upon D. with(35) A. hurt B. sore C. aches D. feelings(36) A. process B. advance C. progress D. convert(37) A. automatic B. artificial C. mechanical D. controlled(38) A. regularly B. ordinarily C. traditionally D. generally(39) A. will B. might C. should D. must(40) A. cultivating B. fostering C. developing D. designing(41) A. which B. that C. whether D. what(42) A. so B. but C. still D. yet(43) A. communication B. transportation C. transformation D. transmission(44) A. lately B. newborn C. newly D. renewed(45) A. under B. through C. beneath D. from(46) A. for B. over C. after D. about(47) A. acquire B. receive C. obtain D. contract(48) A. ailment B. ill-health C. disease D. infection(49) A. continue B. linger C. delay D. persist(50) A. exteriors B. outside C. surfaces D. coveringsPART IV GRAMMAR & VOCABULARY [15 MIN]There are thirty sentences in this section. Beneath each sentence there are four words or phrases mar ked A, B, C and D. Choose one word or phrase that best completes the sentence. Mark your answers o n Answer Sheet Two.51. What a nice day! How about the three of us _____ a walk in the park nearby?A. to takeB. takeC. takingD. to be taking52. If there were no subjunctive mood, English _____ much easier to learn.A. could have beenB. would’beC. will beD. would have been53. She _____ fifty or so when I first met her at a conference.A. had beenB. must beC. has beenD. must have been54. _____ the boss says, it is unreasonable to ask me to work overtime without pay.A. WhateverB. WheneverC. WhicheverD. However55. A new laptop costs about _____ of a second-hand one.A. the price of three timesB. three times the priceC. as much as the three times priceD. three times more than the price56. I was very interested in _____ she told me.A. all thatB. all whichC. all whatD. that57. We consider ______ he should have left without telling anyone beforehand.A. strange whyB. it strange whatC. it strange thatD. that strange58. It is going to be fine tomorrow. _______.A. So is it.B. So it is.C. So it does.D. So does it.59. Little _____ about her own safety, though she herself was in great danger.A. she caredB. she may careC. may she careD. did she care60. The couple had no sooner got to the station _____ the coach left.A. whenB. asC. untilD. than61. Aren’t you tired? I ____ you had done enough for today.A. should have thoughtB. must have thoughtC. might have thoughtD. could have thought62. "It seems that she was there at the conference." The sentence means thatA. she seems to be there at the conference.B. she seemed to be there at the conference.C. she seems to have been there at the conference.D. she seemed to being there at the conference.63. Which of the following adverbs can NOT be used to complete " _____ everybody came"?A. NearlyB. QuiteC. PracticallyD. Almost64. In "How much do you think he earns?" how much is ______ of the sentence.A. the subjectB. the adverbialC. the objectD. the complement65. "The man preparing the document s is the firm’s lawyer" has all the following possible meanings EXCEPTA. the man who has prepared the documents...B. the man who has been preparing the documents...C. the man who is preparing the documents...D. the man who willprepare the documents...66. During the TV interview, the singer announced that he was going to _____ his new album soo n.A. releaseB. renewC. relieveD. rehearse67. Afterworking for the firm for ten years, he finally _____ the rank of deputy director.A. achievedB. approachedC. attainedD. acquired68. Winter is the _____ season at most hotels in this seaside town, because very few tourists come to stay.A. slowB. slackC. lowD. quiet69. Come on, Jack, tell me the story. Don’t keep me in ______.A. suspenseB. suspendingC. suspensionD. suspender70. The football match was _____ because of the heavy rain.A. called overB. called upC. called outD. called off71. We had a good time there, and the food was plentiful and _____.A. conduciveB. wholesomeC. helpfulD. appreciative72. It was strange that she would _____ such an absurd idea.A. allowB. stickC. takeD. entertain73. The scientists have made an _____ study of the viruses that cause the disease.A. exhaustedB. exhaustingC. exhaustiveD. exhaustion74. Do you own your apartment or are you a ______ ?A. tenantB. customerC. clientD. proprietor75. Representatives from the companies indicated that they should go on working together in _____.A. unityB. entityC. partnersD. partnership76. We all know that Mary has had a strict _____.A. growthB. upbringingC. developmentD. cultivation77. The drink was packaged in champagne bottles and was being _____ as the real stuff.A. passed outB. passed byC. passed overD. passed off78. Last Sunday she came to visit us out of the blue. The italicized phrase meansA. unexpectedlyB. unhappilyC. untidilyD. unofficially79. The person he interviewed was _____ his former schoolmate.A. no other thanB. no more thanC. none other thanD. none the less80. The young employee has a(n)______ quality - he is totally honest.A. respectableB. admirableC. decentD. approachablePART V READING COMPREHENSION [25 MIN]In this section there are four passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the one that you think is the best answer. Mark you r answers on Answer Sheet Two.TEXT ADo you realize that every time you take a step, the bones in your hip are subjected to forces betwe en four and five times your body weight? When you are running, this force is increased further still. Wh at happens if through disease a hip-joint ceases to be able to resist such forces? For many years hip-join ts and other body joints have been replaceable either partially or completely. It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contai n materials suitable for the working environment. Any engineer will recognize these as characteristic of a typical engineering problem, which doctors and engineers have worked together to solve, in order to bri ng a fresh lease of life to people who would otherwise be disabled.This typifies the way in which engineers work to help people and create a better quality of life. Th e fact that this country has the most efficient agricultural industry in the world is another good example. Mechanical engineers have worked with farmers and biologists to produce fertilizers, machinery and harv esting systems. This team effort has now produced crops uniformly waist high or less so that they are b etter suited to mechanical harvesting. Similar advances with other crops have released people from hard a nd boring jobs for more creative work, whilst machines harvest crops more efficiently with less waste. Pr oviding more food for the rapidly increasing population is yet another role for the mechanical engineer.81. According to the passage, when would most weight be imposed on hip-joints?A. When one is walking.B. When one is running.C. When one is standing.D. When one is lying down.82. Engineers regard the replacement of hip-joints as a(n) ____ Problem.A. mechanicalB. medicalC. healthD. agricultural83. According to the passage, how do engineers contribute to increasing efficiency of the agricultural industry?A. By working with farmers.B. By working in teams.C. By growing crops of the same height.D. By making agricultural machinery.84. According to the context, "This team effort’" in Paragraph Two refers toA. mechanical engineers.B. doctors and engineers.C. biologists, doctors and farmers.D. farmers, biologists and engineers.TEXT BNowadays, a cellphone service is available to everyone, everywhere. Probably thousands of people ha ve already been using it, but I just discovered it, so I’m going to claim it and also name it: Fake Fonin g.The technology has been working well for me at the office, but there are infinite applications. Virtu ally in any public space.Say you work at a big university with lots of talky faculty members buzzing about. Now, say you need to use the restroom. The trip down the hall will take approximately one hour, because a person ca n’t walk into those talky people without getting pulled aside for a question, a bit of gossip, a new read on a certain line of Paradise Lost.So, a cellphone. Any cellphone. Just pick it up. Don’t dial. Just hold that phone to your face and st art talking. Walk confidently down the hall engaged in fake conversation, making sure to tailor both the topic and content to the person standing before you whom you are trying to evade.For standard colleague avoidance, I suggest fake chatting about fake business:"Yes, I’m glad you called, because we really need to hammer out the details. What’s that? Yes, I r ead Page 12, but if you look at the bottom of 4, I think you can see the problem begins right there."Be animated. Be engaged in your fake fone conversation. Make eye contact with the people passing, nod to them, gesture keen interest in talking to them at a later time, point to your phone, shrug and m ove on.Shoppers should consider fake foning anytime they spot a talky neighbor in the produce department pinching (用手捏) unripe peaches. Without your phone at your face, you’d be in for a 20-minute speech on how terrible the world is.One important caution about fake foning. The other day I was fake foning my way past a colleague, and he was actually following me to get my attention. I knew he wanted to ask about a project I had not yet finished. I was trying to buy myself some time, so I continued fake foning with my doctor. "So I don’t need the operation? Oh, doctor, that is the best news."And then: Brrrrrrng! Brrrrrmg! Brrrrrmg! My phone started ringing, right there while it was planted on my face. My colleague looked at me, and I at him, and naturally I gasped. "What is the matter with this thing?" I said, pulling the phone away to look at it, and then putting it back to my ear."Hello? Are you still there?"Oops.85. Which of the following statements is INCORRECT?A. Cellphone service is popular among people.B. Cellphone has much use in office.C. Fake foning is a new cellphone service.D. Fake foning is a new discovery.86. What is fake foning?A. A strategy to avoid people.B. A device newly produced.C. A service provided everywhere.D. A skill of communication.87. In the author’s opinion, in order to make fake foning look real o ne has toA. talk about interesting matters.B. behave politely to people passing by.C. hold the phone while walking.D. appear absorbed in conversation.88. What does the last example show?A. One effective way is to fake fone one’s doctor.B. One has to be careful while fake foning.C. Fake foning may not deceive people.D. Fake foning is always quite successful.89. After his phone suddenly began ringing, the authorA. immediately started talking to the caller.B. immediately started talking to his colleague.C. put the phone away and stopped talking.D. continued with his fake conversation.90. What is the tone of the passage?A. Critical.B. Humorous.C. Serious.D. Unclear.TEXT CIt was late in the afternoon, and I was putting the final touch on a piece of writing that I was feeli ng pretty good about. I wanted to save it, but my cursor had frozen. I tried to shut the computer down, and it seized up altogether. Unsure of what else todo, I yanked (用力猛拉) the battery out.Unfortunately, Windows had been in the midst of a delicate and crucial undertaking. The next morni ng, when I turned my computer back on, it informed me that a file had been corrupted and Windows w ould not load. Then, it offered to repair itself by using the Windows Setup CD.I opened the special drawer where I keep CDs. But no Windows CD in there. I was forced to call the computer company’s Global Support Centre. My call was answered by a woman in some unnamed, f ar-off land. I find it annoying to make small talk with someone when I don’t know what continent they’re standing on. Suppose I were to comment on the beautiful weather we’ve been having when there was a monsoon at the other end of the phone? So I got right to the point."My computer is tellin g me a file is corrupted and it wants to fix itself, but I don’t have the Wind ows Setup CD.""So you’re having a problem with your Windows Setup CD." She has apparently been dozing and, having come to just as the sentence ended, was attempting to cover for her inattention.It quickly became clear that the woman was not a computer technician. Her job was to serve as a gatekeeper, a human shield for the technicians. Her sole duty, as far as I could tell, was to raise global stress levels.To make me dis appear, the woman gave me the phone number for Windows’ creator, Microsoft. Thi s is like giving someone the phone number for, I don’t know, North America. Besides, the CD worked;I just didn’t have it. No matter how many times I repeated my story, we came back to the same place. She was calm and resolutely polite.When my voice hit a certain decibel (分贝), I was passed along, like a hot, irritable potato, to a te chnician."You don’t have the Windows Setup CD, ma’am, because you don’t need it," he explain ed cheerfull y."Windows came preinstalled on your computer!""But I do need it.""Yes, but you don’t have it." We went on like this for a while. Finally, he offered to walk me thro ugh the use of a different CD, one that would erase my entire system. "Of course, you’d lose all your e -mail, your documents, your photos." It was like offering to drop a safe on my head to cure my headac he. "You might be able to recover them, but it would be expensive." He sounded delighted. "And it’s no t covered by the warranty (产品保证书)!" The safe began to seem like a good idea, provided it was ful l.I hung up the phone and drove my computer to a small, friendly repair place I’d heard about. A s mart, helpful man dug out a Windows CD and told me it wouldn’t be a problem. An hour later, he call ed to let me know it was ready. I thanked him, and we chatted about the weather, which was the same outside my window as it was outside his.91. Why did the author shut down her computer abruptly?A. She had saved what she had written.B. She couldn’t move the cursor.C. The computer refused to work.D. The computer offered to repair itself.92. Which of the following is the author’s opinion about the woman at the Global Support Centre?A. She sounded helpful and knowledgeable.B. She was there to make callers frustrated.C. She was able to solve her computer problem.D. She was quick to pass her along to a technician.93. According to the passage, the solution offered by the technician wasA. effective.B. economical.C. unpractical.D. unacceptable.94. "It was like offering to drop a safe on my head to cure my headache" in the last but one parag raph means thatA. the technician’s proposal would make things even worse.B. the technician’s proposal could even tually solve the problem.C. files stored on her computer were like a safe.D. erasing the entire system was like curing a headache.95. It can be inferred from the passage that the differences between the Global Support Centre and t he local repair shop lie in all the following EXCEPTA. efficiency.B. location.C. setup CDs.D. attitude.TEXT DNot long ago, a mysterious Christmas card dropped through our mail slot. The envelope was address ed to a man named Raoul, who, I was relatively certain, did not live with us. The envelope wasn’t seale d, so I opened it. The inside of the card was blank. Ed, my husband, explained that the card was both f rom and to the newspaper deliveryman. His name was apparently Raoul, and Raoul wanted a holiday tip. We were meant to put a check inside the card and then drop the envelope in the mail. When your ser vices are rendered at 4 a.m., you can’t simply hang around, like a hotel bellboy expecting a tip. You ha ve to be direct.So I wrote a nice holiday greeting to this man who, in my imagination, fires The New York Times from his bike aimed at our front door, causing more noise with mere newsprint than most people mana ge with sophisticated black market fireworks.With a start, I realized that perhaps the reason for the 4 a.m. wake-up noise was not ordinary ruden ess but carefully executed spite: I had not tipped Raoul in Christmases past. I honestly hadn’t realized I was supposed to. This was the first time he’d used the card tactic. So I got out my checkbook. Somewh ere along the line, holiday tipping went from an optional thank-you for a year of services to a Mafia-sty le protection racket (收取保护费的黑社会组织).Several days later, I was bringing our garbage bins back from the curb when I noticed an envelope taped to one of the lids. The outside of the envelope said MICKEY. It had to be another tip request, thi s time from our garbage collector. Unlike Raoul, Mickey hadn’t enclosed his own Christmas card from。
【IT认证】09下半年软考网络工程师上午试题及答案(共24页)
2009年下半年网工考试上午试卷参考答案与解析●以下关于CPU的叙述中，错误的是（1）。
（1）A．CPU产生每条指令的操作信号并将操作信号送往相应的部件进行控制B．程序控制器PC除了存放指令地址，也可以临时存储算术/逻辑运算结果C．CPU中的控制器决定计算机运行过程的D．指令译码器是CPU控制器中的部件试题解析：PC不可以存储算术/逻辑运算结果。
答案：（1）B●以下关于CISC（Complex Instruction Set Computer，复杂指令集计算机）和RISC（Reduced Instruction Set Computer，精简指令集计算机）的叙述中，错误的是（2）。
（2）A．在CISC中，其复杂指令都采用硬布线逻辑来执行B．采用CISC技术的CPU，其芯片设计复杂度更高C．在RISC中，更适合采用硬布线逻辑执行指令D．采用RISC技术，指令系统中的指令种类和寻址方式更少试题解析：CISC 的指令系统对应的控制信号复杂，大多采用微程序控制器方式。
答案：（2）A●以下关于校验码的叙述中，正确的是（3）。
（3）A．海明码利用多组数位的奇偶性来检错和纠错B．海明码的码距必须大于等于1C．循环冗余校验码具有很强的检错和纠错能力D．循环冗余校验码的码距必定为1试题解析：海明码使用多组数位进行异或运算来检错和纠错。
不过，异或也可以当做是奇偶计算，因此A可以算是正确的。
B的错误在于码距不能等于1。
C的错误在于CRC不具有纠错能力。
取两个相近的码字，如0和1，再随便用个生成多项式（如101）进行计算，可以看出即使要传输的码字的码距为1，但整个编码（原数据+CRC校验码）的码距必定大于1。
如果码距可以等于1的话，那么就意味着CRC编码可能无法检查出一位的错误。
因此D也是错误的。
不过，D的表达存在不严谨的地方。
如果将题目中的“循环冗余校验码”定为整个编码（原数据+CRC校验码），则D是错误的。
如果将题目中的“循环冗余校验码”定为CRC校验码，则D是正确的。
全国计算机等级考试四级网络工程师标准样题及答案
2009年3月全国计算机等级考试四级笔试试卷网络工程师〔考试时间120分钟，总分值100分〕一、选择题〔每题1分，共40分〕。
以下各题A〕B〕C〕D四个选项中，只有一个选项是正确的，请将正确的选项涂写在答题卡相应位置上，答在试卷上不得分。
(1)以下关于光纤同轴电缆混合网HFC的描述中，错误的选项是A〕HFC是一个单向传输系统B〕HFC改善了信号传输质量，提高了系统可靠性C〕HFC光纤结点通过同轴电缆下引线可以为500到2000个用户效劳D〕HFC通过Cable Modem将用户计算机与同轴电缆连接起来(2)以下关于无线局域网802.11标准的描述中，错误的选项是A〕802.11标准定义了无线局域网的物理层与MAC层协议B〕802.11标准定义了两类设备，即无线结点与无线接入点C〕无线接入点在无线与有线网络之间起到桥接的作用D〕802.11标准在MAC层采用了CSMA/CD的控制方法(3)目前宽带城域网保证QoS要求的技术主要有RSVP, DiffServ和A〕ATM B〕MPLS C〕SDH D〕Ad hoc(4)以下关于RPR技术的描述中，错误的选项是A 、RPR的内环用于传输数据分组，外环用于传输控制分组B 、RPR是一种用子直接在光纤上高效传输IP分组的传输技术C 、RPR环可以对不同的业务数据分配不同的优先级D〕RPR能够在50ms内隔离出现故障的节点和光纤段(5)以下关于跻由器技术的描述毕，错误的选项是A〕吞吐量是指路由器的包转发能力B〕高性能路山器一般采用交换式构造C`语音视频业务对路由器延时抖动要求不高D〕路由器的冗余是为了保证设备的可靠性与可用性(6)一台交换机具有24个10/100Mbps电端口和4个1000Mbps光端日，如果所有端口都工作在全双工状态，那么交换机总带宽应为A 、6.4Gbps B〕10.4bps C〕12.8Gbps D〕28Gbps(7)假设效劳器系统年停机时间为6小时，那么系统可用性至少到达A〕99% B〕99.9% C〕99.99% D〕99.999%(8) IP地址块168.192.33.125/27的子网掩码可写为A〕255.255.255.192B〕255.255.255.224 C〕255.255.255.240 D〕255.255.255.248(9)以下图是网络地址转换NAT的一个例如根据图XX息，标号为①的方格中的内容应为A〕S=192.168.1.1,3105 B〕S=59.67.148.3,5234D=202.113.64.2,8080 D=202.113.64.2,8080C〕S=192.168.1.1,3105 D〕5=59.67.148.3,5234D=59.67.148.3,5234 D=192.168.1.1,3105(10)某企业分配给人事部的IP地址块为I0.0.11.0/27，分配给企划部的IP地址块为10.0.11 .32/ 27，分配给市场部的IP地址块为10.0.11.64/26，那么这三个地址块经过聚合后的地址为A〕10.0.11.0/25 B〕10.0.11.0/26 C〕10.0.11.64/25 D〕10.0. I1.64/26(11)以下对IPv6地址FE60:0:0:050D:BC:0:0:03F7的简化表示中，错误的选项是A〕FF60::50D:BC:0:0:03F7 B〕FE60:0:0:050D:BC::03F7C〕PE60:0:0:50D;BC;03F7; D〕FE60::50D;BC::03F7(12) BGP路由选择协议的四种分如中不包括A〕hello B〕notification C〕open D〕update(13) R1, R2是一个自治系统中采用RIP路由协议的两个相邻路由器，R1的路由表如以下图(A〕所示，当R1收到R2发送的如以下图(B〕的〔V, D〕报文后，RI更新的四个路由表项中距离值从上到下依次为A〕0、4、2、3 B〕0、4、3、3 C〕0、5、3、3 D〕0、5、3、4(14)以下关于OSPF协议分区的描述中，错误的选项是A〕OSPF协议要求当链路状态发生变化时用洪泛法向全网路由器发送此信息B〕OSPF每个路由器的链路状态数据库包含着本区域的拓扑构造信息C〕每一个区域OSPF拥有一个32位的区域标识符D〕OSPF划分区域能提高路由更新收敛速度〔15)不同逻辑子网间通信必须使用的设备是A〕二层交换机B〕三层交换机C〕网桥D〕集线器(16)以下关于综合布线部件的描述中，错误的选项是A〕双绞线扭绞可以减少电磁干扰B〕与UTP相比，STP防止对外电磁辐射的能力更强C〕多介质插座是用来连接UTP和STP的D〕作为水平布线系统电缆时，UTP电缆长度通常应该在90米以内(17)包含配置信息的配置BPDU数据包的长度不超过A〕4字节B〕15字节C〕25字节D〕3s字节(18) Cisco Catalyst 6500交换机的3/1端口与一台其他厂商的交换机相连，并要求该端口工作在VLAN Trunk模式.这两台交换机的trunk端口都应封装的协议和Cisco Catalyst6500设置trunk模式的正确配置语句是A〕ISL和set 3/1 trunk on islB〕ISL和set trunk 3/1 on islC〕IEEE802.1Q和set trunk 3/1 on dotlqD〕IEEE802.1Q和set 3/1 trunk on dotlq(19)以下对VTP工作模式的描述中，错误的选项是A〕VTP Server可将VLAN的配置信息传播到本域内其他所有的交换机B〕VTP Client不能建立、删除和修改VLAN配置信息C〕VTP Transparent不传播也不学习其他交换机的VLAN配置信息D〕在一个VTP域内，可设多个VTP Server, VTP Client和VTP Transparent(20)以下是优先级值一样的四台核心交换机的MAC地址，STP根据这些地址确定的根交换机是A) 00-d0-01-84-a7-e0 B) 00-d0-02-85-a7-f0C) 00-d0-03-86-a7-fa D) 00-d0-04-87-a7-fc(21)如一F图所示，网络站点A发送数据包给站点B，当R1将数据包转发给R2时，被转发数据包中封装的目的IP地址和目的MAC地址是A〕222.4.57.2 00-d0-02-85-cd-3fB〕222.4.57.2 00-ff-2a-3a-4b-5bC〕222.4.59.2 00-d0-02-85-cd-3fD〕222.4.59.2 00-ff-2a-3a-4b-5b(22) Cisco路由器存储当前使用的操作系统映像文件和一些微代码的内存是A〕ROM B〕RAM C〕Flash D〕NVRAM(23)调整DHCF客户的地址租用时间为3小时30分，Cisco路由器的正确配置语句是A〕Iease 3.30 B〕lease 0 3 30 C〕lease 30 3 0 D〕1eas} 0 30 3(24)在Cisco路由器匕用扩展控制列表封禁1P地址为211.102.33.24的主机，正确的配置语句是A〕access-list 99 deny ip host 211.102.33.24 anyaccess-list 99 deny ip any host 211.102.33.24access-list 99 permit ip any anyB〕access-list 100 permit ip any anyaccess-list 100 deny ip host 211.102.33.24 anyaccess-list 100 deny ip any host 211.102.33.24C〕access-list 199 deny ip host 211.102.33.24 anyaccess-list 199 deny ip any host 211.102.33.24access-list 199 permit ip any anyD〕access-list 166 deny ip host 211.102.33.24 anyaccess-list 166 permit ip any any(25)以下对802.11b无线局域网的多蜂窝漫游工作方式的描述中，错误的选项是A〕在部署无线网络时，可以布置多个接入点构成一个微蜂窝系统B〕微蜂窝系统允许一个用户在不同的接入点覆盖区域内任意漫游C〕随着位置的变换，信号会由一个接入点自动切换到另外一个接入点D〕无线结点漫游时始终保持数据传输速率为11Mbps(26)以下关于802.11b根本运行模式与接入点设备的描述中，错误的选项是A〕无线与有线网络并存的通信方式属于根本运行模式B〕无线接入点具有频道与结点漫游管理功能C〕按根本模式配置，一个接入点最多可连接256台PCD〕Aironet 1100系列接入点设备使用Cisco IOS操作系统(27)以下关于配置无线接入点Aironet 1100的描述中，错误的选项是A〕第一次配置无线接入点一般采用本地配置模式B〕可使用以太网电缆将无线接入点与一台PC机连接C〕确认Pc机获得了10.0.0.x网段的地址D〕在接入点汇总状态页面点击“SSID〞命令进入快速配置页面(28)以下关于Windows 2003系统DNS效劳器安装、配置的描述中，错误的选项是A〕缺省情况下Windows 2003系统没有安装DNS效劳B〕为方便DNS效劳器配置，可以使用DHCP效劳器动态分配IP地址C〕IShiS效劳器的根本配置包括创立正向和反向查找区域、增加资源记录等D〕在反向查找区域中可以手工增加主机的指针记录(29)以下关于Windows 2003系统DHCP效劳器安装、配置和使用的描述中，错误的选项是A〕地址租约期限的最小可调整单位是分钟B〕客户机的地址租约续订是由客户端软件自动完成的C〕添加排除时必须输入起始1P地址和完毕IP地址D〕新建作用域后必须激活才可为客户机分配地址(30)以下关于Windows 2003系统Web效劳器安装、配置和使用的描述中，错误的选项是A〕建立Web站点时必须为该站点指定一个主目录B〕Web站点时必须使用站点的域名C〕假设Web站点未设置默认内容文档，站点时必须提供首页内容的文件名D〕Web站点的性能选项包括影响带宽使用的属性和客户端Web连接的数量(31)以下关于Serv_U FTP效劳器安装、配置和使用的描述中，错误的选项是A〕F'TP效劳器可以设置最大上传速度B〕FTP效劳器的域创立完成后，客户端即可使用匿名用户C〕对用户数大于500的域，将域存放在注册表中可提供更高的性能D〕通过设置IP可以控制某些1P地址对FTP效劳器的(32)假设用户在Winmail效劳器注册的是usermail.xyz.，那么以下描述中错误的选项是A〕发送给该用户时，发方效劳器使用SMTP协议发送至mail.xyz.B〕发送给该用户时，收方效劳器根据user将收到的存储在相应的信箱C〕Winmail效劳器允许用户自行注册新D〕建立路由时，要在DNS效劳器中建立效劳器主机记录( 33 ) Windows 2003对己备份文件在备份后不做标记的备份方法是A〕正常备份B〕差异备份C〕增量备份D〕副本备份34 ) Cisco PIX525防火墙用于实现内部和外部地址固定映射的配置命令是A〕nat B〕static C〕global D〕fixup35)以下关于入侵检测系统探测器获取网络流量的方法中，错误的选项是A〕利用交换设备的镜像功能B〕在网络链路中串接一台分路器C〕在网络链路中串接一台集线器D〕在网络链路中串接一台交换机(36)以下Windows命令中，可以用于检测本机配置的域名效劳器是否工作正常的命令是A〕netstat B〕tracert C〕ipconfig D〕nbstal(37)在一台主机上用浏览器无法到域名为.的，并且在这台主机上执行Pig命令时有如下信息C:1>ping .Pinging . [162.105.131.113] with 32 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 162.105.131.113:P:}ckets: Sent=4, Received=0, Lost=4 (100% loss)分析以上信息，可以排除的故障原因是A〕网络链路出现故障B〕该计算机的浏览器工作不正常C〕效劳器.工作不正常D〕该计算机设置的DNS效劳器工作不正常(38)攻击者无需伪造数据包中IP地址就可以实施的攻击是A〕DDoS攻击B〕Land攻击C〕Smurf攻击D〕SYN Flooding攻击(39)以下工具中不能用作平安评估的是A〕ISS B〕MBSA C〕WSUS D〕X-Scanner(40)以下关于恶意代码的描述中，错误的选项是A〕木马能够通过网络完成自我复制B)电子图片中也可以携带恶意代码C〕JavAscript... VBscript..等脚本语言可被用干编写网络病毒D〕蠕虫是一个独立程序，它不需要把自身附加在宿主程序上二、综合题(每空2 分，共40 分)。
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2009年3月全国计算机等级考试四级笔试试卷网络工程师（考试时间120分钟，满分100分）一、选择题（每小题1分，共40分）下列各题A）、B）、C）、D）四个选项中，只有一个选项是正确的，请将正确的选项涂写在答题卡相应的位置上，答在试卷上不得分。
（1）下列关于光纤同轴电缆混合网HFC的描述中，错误的是A）HFC是一个单向传输系统B）HFC改善了信号传输质量，提高了系统可靠性C）HFC光纤结点通过同轴电缆下引线可以为500到2000个用户服务D）HFC通过Cable Modem将用户计算机与同轴电缆连接起来（2）下列关于无线局域网802.11标准的描述中，错误的是A）802.11标准定义了无线局域网的物理层与MAC层协议B）802.11标准定义了两类设备，即无线结点与无线接入点C）无线接入点在无线与有线网络之间起到桥接的作用D）802.11标准在MAC层采用了CSMA/CD的访问控制方法（3）目前宽带城域网保证QoS要求的技术主要有RSVP, DiffServ和A）ATM B）MPLS C）SDH D）Ad hoc（4）下列关于RPR技术的描述中，错误的是A）RPR的内环用于传输数据分组，外环用于传输控制分组B）RPR是一种用于直接在光纤上高效传输IP分组的传输技术C）RPR环可以对不同的业务数据分配不同的优先级D）RPR能够在50ms内隔离出现故障的节点和光纤段（5）下列关于路由器技术的描述中，错误的是A）吞吐量是指路由器的包转发能力B）高性能路由器一般采用交换式结构C）语音、视频业务对路由器延时抖动要求不高D）路由器的冗余是为了保证设备的可靠性与可用性（6）一台交换机具有24个10/100Mbps电端口和4个1000Mbps光端日，如果所有端口都工作在全双工状态，那么交换机总带宽应为A）6.4Gbps B）10.4bps C）12.8Gbps D）28Gbps（7）若服务器系统年停机时间为6小时，那么系统可用性至少达到A）99% B）99.9% C）99.99% D）99.999%（8）IP地址块168.192.33.125/27的子网掩码可写为A）255.255.255.192 B）255.255.255.224 C）255.255.255.240 D）255.255.255.248（9）下图是网络地址转换NAT的一个示例根据图中信息，标号为①的方格中的内容应为A）S=192.168.1.1,3105D=202.113.64.2,8080B）S=59.67.148.3,5234D=202.113.64.2,8080C）S=192.168.1.1,3105D=59.67.148.3,5234D）5=59.67.148.3,5234D=192.168.1.1,3105（10）某企业分配给人事部的IP地址块为10.0.11.0/27，分配给企划部的IP地址块为10.0.11.32/27，分配给市场部的IP地址块为10.0.11.64/26.那么这三个地址块经过聚合后的地址为A）10.0.11.0/25 B）10.0.11.0/26 C）10.0.11.64/25 D）10.0. I1.64/26（11）下列对IPv6地址FE60:0:0:050D:BC:0:0:03F7的简化表示中，错误的是A）FF60::50D:BC:0:0:03F7 B）FE60:0:0:050D:BC::03F7C）FE60:0:0:50D:BC:03F7 D）FE60::50D:BC::03F7（12）BGP路由选择协议的四种分如中不包括A）hello B）notification C）open D）update（13）R1, R2是一个自治系统中采用RIP路由协议的两个相邻路由器，R1的路由表如下图（a）所示，当R1收到R2发送的如下图（b）的〔V, D）报文后，RI更新的四个路由表项中距离值从上到下依次为A）0、4、2、3 B）0、4、3、3 C）0、5、3、3 D）0、5、3、4（14）下列关于OSPF协议分区的描述中，错误的是A）OSPF协议要求当链路状态发生变化时用洪泛法向全网路由器发送此信息B）OSPF每个路由器的链路状态数据库包含着本区域的拓扑结构信息C）每一个区域OSPF拥有一个32位的区域标识符D）OSPF划分区域能提高路由更新收敛速度（15）不同逻辑子网间通信必须使用的设备是A）二层交换机B）三层交换机C）网桥D）集线器（16）下列关于综合布线部件的描述中，错误的是A）双绞线扭绞可以减少电磁干扰B）与UTP相比，STP防止对外电磁辐射的能力更强C）多介质插座是用来连接UTP和STP的D）作为水平布线系统电缆时，UTP电缆长度通常应该在90米以内（17）包含配置信息的配置BPDU数据包的长度不超过A）4字节B）15字节C）25字节D）35字节（18）Cisco Catalyst 6500交换机的3/1端口与一台其他厂商的交换机相连，并要求该端口工作在VLAN Trunk模式。
这两台交换机的trunk端口都应封装的协议和Cisco Catalyst6500设置trunk模式的正确配置语句是A）ISL和set 3/1 trunk on isl B）ISL和set trunk 3/1 on islC）IEEE802.1Q和set trunk 3/1 on dotlq D）IEEE802.1Q和set 3/1 trunk on dotlq（19）下列对VTP工作模式的描述中，错误的是A）VTP Server可将VLAN的配置信息传播到本域内其他所有的交换机B）VTP Client不能建立、删除和修改VLAN配置信息C）VTP Transparent不传播也不学习其他交换机的VLAN配置信息D）在一个VTP域内，可设多个VTP Server, VTP Client和VTP Transparent（20）下列是优先级值相同的四台核心交换机的MAC地址，STP根据这些地址确定的根交换机是A）00-d0-01-84-a7-e0 B）00-d0-02-85-a7-f0C）00-d0-03-86-a7-fa D）00-d0-04-87-a7-fc（21）如下图所示，网络站点A发送数据包给站点B，当R1将数据包转发给R2时，被转发数据包中封装的目的IP地址和目的MAC地址是A）222.4.57.2 00-d0-02-85-cd-3f B）222.4.57.2 00-ff-2a-3a-4b-5bC）222.4.59.2 00-d0-02-85-cd-3f D）222.4.59.2 00-ff-2a-3a-4b-5b（22）Cisco路由器存储当前使用的操作系统映像文件和一些微代码的内存是A）ROM B）RAM C）Flash D）NVRAM（23）调整DHCP客户的地址租用时间为3小时30分，Cisco路由器的正确配置语句是A）lease 3 30 B）lease 0 3 30 C）lease 30 3 0 D）lease 0 30 3（24）在Cisco路由器上，用扩展访问控制列表封禁IP地址为211.102.33.24的主机，正确的配置语句是A）access-list 99 deny ip host 211.102.33.24 anyaccess-list 99 deny ip any host 211.102.33.24access-list 99 permit ip any anyB）access-list 100 permit ip any anyaccess-list 100 deny ip host 211.102.33.24 anyaccess-list 100 deny ip any host 211.102.33.24C）access-list 199 deny ip host 211.102.33.24 anyaccess-list 199 deny ip any host 211.102.33.24access-list 199 permit ip any anyD）access-list 166 deny ip host 211.102.33.24 anyaccess-list 166 permit ip any any（25）下列对802.11b无线局域网的多蜂窝漫游工作方式的描述中，错误的是A）在部署无线网络时，可以布置多个接入点构成一个微蜂窝系统B）微蜂窝系统允许一个用户在不同的接入点覆盖区域内任意漫游C）随着位置的变换，信号会由一个接入点自动切换到另外一个接入点D）无线结点漫游时始终保持数据传输速率为11Mbps（26）下列关于802.11b基本运行模式与接入点设备的描述中，错误的是A）无线与有线网络并存的通信方式属于基本运行模式B）无线接入点具有频道与结点漫游管理功能C）按基本模式配置，一个接入点最多可连接256台PCD）Aironet 1100系列接入点设备使用Cisco IOS操作系统（27）下列关于配置无线接入点Aironet 1100的描述中，错误的是A）第一次配置无线接入点一般采用本地配置模式B）可使用以太网电缆将无线接入点与一台PC机连接C）确认Pc机获得了10.0.0.x网段的地址D）在接入点汇总状态页面点击“SSID”命令进入快速配置页面（28）下列关于Windows 2003系统DNS服务器安装、配置的描述中，错误的是A）缺省情况下Windows 2003系统没有安装DNS服务B）为方便DNS服务器配置，可以使用DHCP服务器动态分配IP地址C）DNS服务器的基本配置包括创建正向和反向查找区域、增加资源记录等D）在反向查找区域中可以手工增加主机的指针记录（29）下列关于Windows 2003系统DHCP服务器安装、配置和使用的描述中，错误的是A）地址租约期限的最小可调整单位是分钟B）客户机的地址租约续订是由客户端软件自动完成的C）添加排除时必须输入起始1P地址和结束IP地址D）新建作用域后必须激活才可为客户机分配地址（30）下列关于Windows 2003系统Web服务器安装、配置和使用的描述中，错误的是A）建立Web站点时必须为该站点指定一个主目录B）访问Web站点时必须使用站点的域名C）若Web站点未设置默认内容文档，访问站点时必须提供首页内容的文件名D）Web站点的性能选项包括影响带宽使用的属性和客户端Web连接的数量（31）下列关于Serv_U FTP服务器安装、配置和使用的描述中，错误的是A）FTP服务器可以设置最大上传速度B）FTP服务器的域创建完成后，客户端即可使用匿名用户访问C）对用户数大于500的域，将域存放在注册表中可提供更高的性能D）通过设置IP访问可以控制某些1P地址对FTP服务器的访问（32）若用户在Winmail邮件服务器注册的邮箱是user@，则下列描述中错误的是A）发送邮件给该用户时，发方邮件服务器使用SMTP协议发送邮件至B）发送邮件给该用户时，收方邮件服务器根据user将收到的邮件存储在相应的信箱C）Winmail邮件服务器允许用户自行注册新邮箱D）建立邮件路由时，要在DNS服务器中建立邮件服务器主机记录（33）Windows 2003对已备份文件在备份后不做标记的备份方法是A）正常备份B）差异备份C）增量备份D）副本备份（34）Cisco PIX525防火墙用于实现内部和外部地址固定映射的配置命令是A）nat B）static C）global D）fixup（35）下列关于入侵检测系统探测器获取网络流量的方法中，错误的是A）利用交换设备的镜像功能B）在网络链路中串接一台分路器C）在网络链路中串接一台集线器D）在网络链路中串接一台交换机（36）下列Windows命令中，可以用于检测本机配置的域名服务器是否工作正常的命令是A）netstat B）tracert C）ipconfig D）nbtstat（37）在一台主机上用浏览器无法访问到域名为的网站，并且在这台主机上执行Pig 命令时有如下信息C:\>ping Pinging [162.105.131.113] with 32 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 162.105.131.113:Packets: Sent=4, Received=0, Lost=4 （100% loss）分析以上信息，可以排除的故障原因是A）网络链路出现故障B）该计算机的浏览器工作不正常C）服务器工作不正常D）该计算机设置的DNS服务器工作不正常（38）攻击者无需伪造数据包中IP地址就可以实施的攻击是A）DDoS攻击B）Land攻击C）Smurf攻击D）SYN Flooding攻击（39）下列工具中不能用作安全评估的是A）ISS B）MBSA C）WSUS D）X-Scanner（40）下列关于恶意代码的描述中，错误的是A）木马能够通过网络完成自我复制B）电子图片中也可以携带恶意代码C）JavaScript. VBScript等脚本语言可被用于编写网络病毒D）蠕虫是一个独立程序，它不需要把自身附加在宿主程序上二、综合题（每空2分，共40分）请将每一个空的正确答案写在答题卡【1】-【20】序号的横线上，答在试卷上不得分。