Question 1

Section1Question 1:Part AGiven the competitive nature of the mobile telecommunications market analyse the likely advantages and disadvantages to Opal of establishing a partnership agreement with another company.12Advantages:Firstly, the partnership agreements can provide Opal with technology assistance. It allows Opal for the joint development of new products and the sharing of technology. Secondly, a Chinese partnership not only gives Opal access to local knowledge but also provides an air of acceptability that is important when conducting business in China. Thirdly, local firms’ well-reputation and wealth of experience will also help Opal to ensure that product development and customer service is specifically targeted at meeting the local needs and demands of the local market. Fourthly, companies in partnership can share the costs and reduce the risk.Disadvantages:As for the disadvantages, firstly, the own technology of Opal might be leaked because of the sharing of technology which may result in the loss of Opal’s competitive advantages. Secondly, in a partnership with others, the control power of Opal’s own company might be distributed because of the consideration of other partners’ benefits. Thirdly, firms need to share the profits and there might be conflicts since those companies are profitable organizations.PART BIdentify and justify possible options the senior management may have which will enable Opal to maintain its current levels of success and profitability. 8Firstly, since Chinese market has enormous potential, Opal needs continue to invest inChinese market to gain more market shares for its expansion.Secondly, Opal can sign the partnership agreements with more companies, to gain more comprehensive market information and share the technology and develop new products.Thirdly, in order to maintain the characteristics and good reputation, Opal needs to keep the strong stance in relation to the environment, use more green and environmental materials to produce ‘environmentally friendly’ products and services, and keep offering a comprehensive mobile phone recycling scheme.Fourthly, it is necessary to deepen the agreement with Huawei, since Huawei is a long established and well-respected player in the Chinese telecoms market. By doing so, Opal can achieve the further expansion.Question 2PART AAssess the strengths and weaknesses of Opal as they seek to expanding in the coming years. 12StrengthsFirstly, the further deregulation of the telecommunications markets enabled Opal to capitalize on a number of opportunities.Secondly, Opal has its core markets, and the recent ‘opening-up’ of the Chinese market is currently providing Opal with opportunities for further expansion. Thirdly, the mobile devices division has allowed Opal to sell their phones to competing networks allowing access to a much larger market.Fourthly, as their characteristic, Opal has adopted a strong stance in relation to the environment, and they were one of the first phone manufacturers in the world to offer a comprehensive mobile phone recycling scheme and offers environmentally friendly products and services.W eaknessesFirstly, the first hand-held phones were high priced because of the high research and development costs and the need for highly specialized production facilities. And this may cause the needs of a large amount of investment capital and the decrease in sales. Secondly, Opal is a medium sized producer of handsets, which means it owns limited produce resources and investment capital resources. It may not be able to meet the needs of cooperation with other companies.Thirdly, the regulatory complexities of operating within the Chinese market may hinder the development and expansion of Opal.Lastly, the regulatory complexities of operating within the Chinese market and the fierce competition may hinder the expansion of Opal and increase a certain level of risk.PART BChoose two Key values highlighted in Appendix 3 and for each, explain how it has impacted upon the company’s activities. 8Firstly, the customer deserves service excellence.Opal is a customer- focused organization. Enterprise's core value is to focus on customer service and its quality. By doing so, the customer satisfaction and loyalty can be established and then the growth of sales and profits can be achieved. According to the case, in order to enhance the quality and satisfaction of customer services, the Opal has established the Service Development Section and Customer Care Department. With the rapid development of technology, the Service Development Section is tasked to enhance the customer experience of the mobile and web-based services. And the Customer Care section is tasked to ensure that customer expectations are consistently met. Both of them are aim to provide customers with excellent services.Secondly, we accept that while we are driven by technology we will always aspire to drive technology.The development of technology can provide Opal with higher tech-competitiveness, and help it to develop new products and expand to larger market. As for Opal, they continue invest in other innovative products and market research, and has been very successful in identifying market trends and then using the latest technological developments to satisfy customer needs. And, there is a Special projects section in Opalwhich requires significant investment and provides the leading-edge technology required for mobile and others.Section 2Question1PART AEvaluate possible sources of finance that Gold could access as it seeks to expand its business operations.Firstly, issuing shares are a financing way that Opal can access. It can meet a part of the Opal’s capital needs during its expansion, even though the amount of share capital issued will be limited to the authorized share capital amount.Secondly, issuing debentures are a useful way too. Debentures are loans made to companies that carry a fixed rate of interest. However, the debenture holders need to repay the principles on time and they do not participate in the running of the company like shareholders do.Thirdly, even though both issuing shares and dividends are appropriate for Opal, there still some differences between them. The shareholders have the control right of the company, but the dividend holders do not. And, the dividends holders need to repay the principle on time, while it won’t be necessary for shareholders. Lastly, the shareholders can get benefits from the dividends while the debenture holders can get them from the interests.PART B找到一类可以同时满足Opal 公司股东和Opal 在中国市场合作伙伴用来检验企业效率的财务数据信息. 请解释这类数据是如何满足这些利益相关者要求的。

剑桥雅思4Test3听力Section 1答案+解析谈话场景：租房场景。

人物关系：租房中介咨询员以及租房者。

谈话话题：交流租房信息，房源、客户要求、客户信息以及房租等问题交际与语言表达1. 租房场景是Section 1 的高频场景。

学生若住在学校公寓，离教室和图书馆都比较近，相对方便一些。

若住在当地人家里( host family)，房租一般比学校便宜，而且可以深入到当地人生活中，深入沟通，感受文化;若选择和同学或朋友一起在外租房，大家可以在生活上互相照应，在学习上经常一起交流心得体会，了解不同的文化和思维方式。

2. “I was studying general English in Adelaide and now I’m doing Academic English, because I’m trying to get into Medicine next year.”我在阿德莱德的时候学的是通用英语，现在我学的是专业英语，因为明年我准备开始学医了。

一部分没有过语言关的留学生会选择先读语言学校，然后再攻读学位。

有些攻读硕士学位并要更换专业的学生还需要读一些“bridge courses”( 衔接课程).3. “Would you like to live with a family or do you think that a single person would be better for you? Do you have any women living alone, retired women?”你喜欢和一个家庭一起住还是觉得一个人单独住更合适?你那儿有单独居住的退休女士吗?“single person”指“一个人”，“single”还有“单身”的意思，例如：Married people usually have a different view of life from single people. 已婚的人与单身的人通常有不同的人生观。

model test oneQuestions 1 and 2 will be based on the following news items.1.cation problems of American children.cation problems of Syrian children in Turkey.C. A statement published by Human Rights Watch.D.Many children in Turkey don’t receive education.2.A.They built long-lasting schools in Turkey.B.They established a huge school system in Turkey.C.They offered financial support to Turkey.D.They sent refugee children to refugee camps.Questions 3 and 4 will be based on the following news items.3.A.They killed no more than 50 people.B.They fired against NATO troops.C.They attacked an airport in Afghanistan.D.They killed 10 children, and two police officers.4.A.Withdrawal of combat troops from other countries.B.False claims of foreign military troops.C.Decline of the local troops’ strength.st year’s victory over foreign troops.Questions 5 and 7 will be based on the following news items.5.A.Violate the civil liberties in Australia.B.Increase the legal age to buy cigarettes.C.Introduce a plan called plain packaging.D.Raise the price of cigarettes in Australia.6.A.Details of anti-smoking policies.B.Pictures with olive trees.C.Health warnings including pictures.D.Data of cigarette sales worldwide.7.A.To follow the anti-smoking trend in Kuwait and Hawaii.B.To make Tasmania Australia’s healthiest city by 2025.C.To ease existing tough anti-smoking policies.D.To have more tough anti-smoking policies.Keys: BC CA BCBQuestions 1 and 2 will be based on the following news items.1.A.The number of adult girls is expected to double by 2050.B.Child marriage in Africa will be ended by 2050.C.Half woman will be married before reaching adulthood by 2050.D.The legal marriage age will set above 18 by 2050.2.A.Poverty and lack of education.B.Local culture that undervalues children.C.The low legal age for marriage.D.High risks of becoming teenage mothers.Questions 3 and 4 will be based on the following news items.3.A.Waste products of whisky could make biofuel.B.Scotland is the largest producer of whisky in the world.C. A new fuel called Biobutanol is found by a Scottish professor.D.There are many waste products in making whisky.4.A.Corn and sugar cane.B.Rye and corn.C.Strong beer and wheat.D.Rice and wheat.Questions 5 and 7 will be based on the following news items.5.A.Getting high skilled people.B.Promoting company’s technology.C.Finding enough employees.D.Increasing members of immigrants.6.A.The number of them decreases dramatically.B.They mainly move from south states.C.They come to Chicago without work visa.D.The number of them increases after the recession.7.A.The law of immigrants.B.The environment for companies.C.The number of work visas.D.Higher salary and better titles.Keys: CA AC AABModel test three Questions 1 and 2 will be based on the following news items.1.A.The asset of the US that has been frozen.B.The conflict that threatens the US national security.C.Rallies are planned to protest the war there.D.The UN Security Council is involved in the issue there.2.A.Four Sudanese.B.The US president.C.ReportersD.George Clooney.Questions 3 and 4 will be based on the following news items.3.A.Consumers give up motorcycles.B.Some politicians suggest cutting down prices of gasoline.C.Oil companies are not satisfied with it.D.Some congressmen think oil companies should be examined.4.A.It might not work.B.Consumers will finally benefit from it.C.It is good for oil industry.D.It should also be imposed on other industry.Questions 5 and 7 will be based on the following news items.5.A.At 4:35 pm local time.B.At 4:35 am local time.C.At 4:25 am local time.D.At 4:25 pm local time.6.A.The US Geological Survey first reported the earthquake.B.India’s Ｍeteorological Department has predicted the earthquake.C. A newly-built building collapsed in the earthquake.D.Three thousand people were reported dead in the earthquake.7.A.Because he had a heart attack after the earthquake.B.Because he jumped from a fourth-floor balcony.C.Because he was badly injured during the quake.D.Because he suffered a stroke after the earthquake.KEYS: BD DA BCDQuestions 1 and 2 will be based on the following news items.1.A.Their health becomes worse.B.They don’t fight as hard as before.C.They won’t get the benefit of pension.D.They receive less education.2.A.In the late 1970s.B.In the early 1970s.C.During World War II.D.In the late 1960s.Questions 3 and 4 will be based on the following news items.3.A.Nobody was injured in it.B.It was caused by an error.C.It killed 27 miners.D.It affected national electricity supply.4.A.Extraordinary expansion of mine companies.B.The laws requiring federal mine inspections.C.The decline of coal supply in the world.D.An accident causing thousands of death.Questions 5 and 7 will be based on the following news items.5.A.An express company that delivers food.B. A meal replacement diet.C. A report on fast weight-loss diet category.D.An annual ranking of best diet plans.6.A.The food is made by medical workers.B.The food is healthier than made-at-home meal.C.The food is delivered to dieters directly.D.Dieters can order a variety of food.7.A.It is tough to achieve.B.It may change our lifestyle.C.It is unhealthy and unsustainable.D.It can lead to future diseases.KEYS: CA BB BCCNews reportModel test 5Question 1and 2 will be based on the following news item.1.A.18000.B.80000.C.60000.D.160002.A.Meet the miners' original demandB.Improve the miners' working conditionsC.Offer more benefits to poor black minersD.Offer a 10% pay riseQuestion 3 and 4 will be based on the following news item.3.A.Chances of guessing the correct lotto numbersB.Rossi's dreams about winning the lottoC.People's madness for lotto games in ItalyD.Foreigners' visit to Italy for the lotto drawings4.A. A huge amount of moneyB.Free flight to ItalyC. A free tour in EuropeD.Tickets for the lotto gamesQuestion 5 and 7 will be based on the following news item.5.A.Stopping renewing an agreementB.Blocking an agreementC.Renewing an agreementD.Blocking the renewal of a contract6.A.It provided sufficient privacy safeguardsB.It can't protect privacy sufficientlyC.It failed to safeguard people's interestsD.It provided insufficient safeguards7.A.The Swift Money Transfer SystemB.The Brussels TreatyC.The Lisbon TreatyD.The Swift SystemKEYS: B D C B A B CModel test 6Question 1and 2 will be based on the following news item.1.A.On the first Monday in NovemberB.On the first Tuesday in NovemberC.On the first Tuesday in DecemberD.On the first Monday in December2.A.Frans BaleniB.Ken CuccinelliC.Terry McAuliffeD.Chris ChristieQuestion 3 and 4 will be based on the following news item.3.A.The general US economic activityB.Consumer spending in US economyC.The lower saving rate in AmericaD.The government's effort on economy4.A.The lower saving rate in four yearsB.The spending boost by AmericansC.Special payments by the governmentD.PNC Financial Services Group's supportQuestion 5 and 7 will be based on the following news item.5.bor Department officialsB.CivilianswmakersD.The army6.A.0.3％B.3％C.9.7％D.10％7.A.NegativeB.PositiveC.HopelessD.EnlighteningKEYS: B D B C C A B。

剑桥雅思4Test1听力Listening Section 1答案+解析谈话场景：咨询旅游事宜场景，电话交谈。

人物关系：学校社会活动咨询员和学生。

谈话话题：咨询学校组织的旅游线路、旅游费用和旅行地点。

交际与语言表达1. 在这个旅游场景讨论中，学生就英国某学校组织的旅游活动事宜向学校负责人进行咨询。

2. 为帮助国际留学生更好地感受英国文化，英国大学通常为他们提供类似的旅游活动，游览地点多为英国的著名城市和名胜古迹，如：本题中提到的伦敦塔( Tower of London) 以及 Salisbury 平原上的史前巨石柱( Stonehenge)。

国际留学生办公室( International Office) 会将游览的安排事宜先公布，学生需要提前报名，并交纳一定的费用。

学校负责当天的游览交通，学生可以自行活动，也可参加有导游的游览。

若想了解更多的旅游信息，可以上网搜索一些不错的旅游网站，这样就可以在出国前订下自己的旅游计划。

3. “Yes, we run five every month: three during weekends and two Wednesday afternoon trips.”是的，我们每个月组织 5 次旅行活动，其中 3 次是在周末， 2 次是在周三下午。

“ run”在此句中表示“组织，运营”和“ organize”是同义转换。

4. “Well, obviously it varies, but always places of historical interests….”很明显，他们是不一样的，但肯定都是历史古迹，“ vary”做不及物动词表示“( 使) 变化, 改变”，“ vary from… to…”表示“从……到……不等”, 例如： The sword hardly varied in form from the 12th to the 15th century. 剑的样式从 12 世纪到 15 世纪几乎没有什么改变。

[]CNTB v1.0.121q QUESTION 1在计算机网络中处理通信控制功能的计算机是哪种？A. 通信线路B. 终端C. 主计算机D. CCPAnswer: DQUESTION 2当通信子网采用哪种方式时，我们首先要在通信双方之间建立起逻辑链路？A. 线路连接B. 虚电路C. 数据报D. 无线连接Answer: BQUESTION 3在OSI参考模型中，哪个处于模型的最低层？A. 传输层B. 网络层C. 数据链路层D. 物理层Answer: DQUESTION 4FDDI技术可以使用具有很好容错能力的？A. 单环结构B. 双环结构C. 复合结构D. 双总线结构Answer: BQUESTION 510BASE-T标准规定连接结点与集线器的非屏蔽双绞线的距离最长为多少？A. 50mB. 500mC. 100mD. 185mAnswer: CQUESTION 6以太网交换机的100Mbps全双工端口的带宽为多少？A. 1000MbpsB. 50MbpsC. 100MbpsD. 200MbpsAnswer: DQUESTION 7目前常用的网络操作系统（例如Windows NT Server）是什么结构的？A. 层次B. 对等C. 非层次D. 非对等Answer: DQUESTION 8在网络互连的层次中，哪种是在数据链路层实现互连的设备？A. 网关B. 中继器C. 网桥D. 路由器Answer: CQUESTION 9WWW服务是Internet上最方便与最受用户欢迎的_______？A. 数据计算方法B. 信息服务类型C. 数据库D. 费用方法Answer: BQUESTION 10在可信计算机系统评估准则中，计算机系统安全等级要求最高的是哪一级？A. DB. C1C. B1D. A1Answer: DQUESTION 11如果要将一个建筑物中的几个办公室进行连网，一般应采用什么方案？A. 互联网B. 局域网C. 城域网D. 广域网Answer: BQUESTION 12通过改变载波信号的频率来表示数字信号1，0的方法叫做什么？A. 绝对调相B. 振幅键控C. 相对调相D. 移频键控Answer: DQUESTION 13ATM采用信元作为数据传输的基本单位，它的长度为多少？A. 43字节B. 5字节C. 48字节D. 53字节Answer: DQUESTION 14在OSI参考模型中，数据链路层的数据服务单元是哪个？A. 分组B. 报文C. 帧D. 比特序列Answer: CQUESTION 15在共享介质以太网中，采用的介质访问控制方法是哪种？A. 并发时间连接B. 令牌方法C. 时间片方法D. CDMA/CD方法Answer: DQUESTION 16如果使用粗缆来连接两个集线器，使用双绞线来连接集线器与结点，粗缆单根缆段最大距离为500m，那么网中两个结点最大距离可以达到多少米？A. 870mB. 1000mC. 700mD. 650mAnswer: CQUESTION 17如果有多个局域网需要互连，并且希望将局域网的广播信息能很好地隔离开来，那么最简单的方法是采用哪种？A. 中继器B. 网桥C. 路由器D. 网关Answer: CQUESTION 18IP地址能够唯一的确定Internet上每台计算机与每个用户的______？A. 距离B. 时间C. 位置D. 费用Answer: CQUESTION 19哪种服务用来确认网络中信息传送的源结点与目的结点的用户是否真实？A. 认证B. 数据完整性C. 防抵赖D. 访问控制Answer: AQUESTION 20哪种功能用来保护网络资源安全的网络管理功能域？A. 计费管理B. 安全管理C. 性能管理D. 配置管理Answer: BQUESTION 21在计算机网络中作为承载信息传递媒介的设备是哪种？A. 通信线路B. 终端C. 主计算机D. CCPAnswer: AQUESTION 22当通信子网采用线路交换方式时，首先的步骤是哪个？A. 数据交换B. 线路建立C. 差错检测D. 线路释放Answer: BQUESTION 23根据IEEE 802的规则，非屏蔽双绞线的有效传输距离一般为多少米？A. 50mB. 100mC. 500mD. 185mAnswer: BQUESTION 24采用同轴电缆作为传输介质的总线型局域网的标准传输带宽为多少？A. 100MbpsB. 20MbpsC. 10MbpsD. 1MbpsAnswer: CQUESTION 25Telnet服务是Internet上的一种_____？A. 远程登陆方式B. 信息服务类型C. 数据库D. 费用方法Answer: AQUESTION 26在OSI参考模型中，哪个处于模型的最高层？A. 应用层B. 网络层C. 数据链路层D. 物理层Answer: AQUESTION 27在主要使用文本相互通信的两个或多人之间，他们使用的哪种通信形式属于基本文本的实时通信?A. 网络日志B. 维基C. 即时消息D. 博客Answer: CQUESTION 28哪种网络为客户提供对企业数据（如库存，部件列表订单）的有限访问?A. 内部网B. 外联网C. 网际网络D. InternetAnswer: BQUESTION 29出于管理数据的目的，需要使用什么来权衡通信的重要性及其特征?A. 网络管理B. 网络流量C. QoS策略D. 网络评估Answer: CQUESTION 30对网络通信采取哪些处理后才能使服务质量策略正常发挥作用?(选二项)A. 根据服务质量要求对通信分类B. 对应用程序数据的每个分类分配优先级C. 始终对Web通信分配高优先级处理队列D. 始终对数字电影分配高优先级处理队列E. 始终对电子邮件通信分配低优先级队列Answer: ABQUESTION 31网络体系结构有哪两个部分?(选二项)A. 构成以人为本网络的人B. 通过网络传输消息的编程服务和协议C. 通过网络传输的数据D. 支持网络通信的技术E. 运营和维护数据网络的企业Answer: BDQUESTION 32在当初开发Internet时，放弃面向连接的电路交换技术出于哪三个原因?(选三项)A. 电路交换技术要求将单个消息划分为包含编址信息的多个消息块B. 早期的电路交换网络在电路出现故障时不能自动建立被动电路C. 电路交换技术要求即使两个位置之间当前并未传输数据，也必须在网络之间建立开放电路D. 通过面向连接的电路交换网络传输信息无法保证质量和一致性E. 建立多路并发开放电路获得容错能力成本高昂Answer: BCEQUESTION 33开发Internet时使用数据包交换无连接数据通信技术出于哪三个原因?(选三项)A. 它能快速适应数据传输设备的丢失B. 它能有效利用网络基础架构传输数据C. 数据包可同时通过网络采取多条路径传输D. 支持按建立连接的时间收取网络使用的费用E. 传输数据之前需要在原设备和目的设备之间建立数据电路Answer: ABCQUESTION 34QoS在融合网络中的作用是什么?A. 确保丢弃高于可用带宽水平的所有通信B. 确定网络中不同通信的传输优先级C. 针对所有网络通信确定精确的优先级D. 允许网络中的其他组织共享未使用的带宽Answer: BQUESTION 35下面哪个术语描述了一个公共平台适合于不同通信类型?A. 可扩展性B. 融合C. 容错能力D. 服务质量Answer: BQUESTION 36下面哪个选项符合网络基础架构安全?A. 竞争者通过不安全的无线网络访问敏感信息B. 建造者不小心切断了网络线缆C. 不满的职员改变了消费者数据库信息D. 秘书发送保密信息来回复没有明确显示来自她老板的邮件Answer: BQUESTION 37OSI哪一层与IP编址相关?A. 1B. 2C. 3D. 4Answer: CQUESTION 38OSI第二层采用哪种编址方式?(选二项)A. 逻辑B. 物理C. MAC地址D. IPE. 端口Answer: BCQUESTION 39当服务器相应Web请求时，将网页数据格式化并划分为TCP数据段，封装过程接下来会发生什么?A. 客户端解封装数据段并打开网页B. 客户端向数据段添加适当的物理地址以便服务器转发数据C. 服务器将数据转换成比特，以便通过介质传输D. 服务器向每个数据段报头添加源IP地址和目的IP地址，将数据包传送到目的设备E. 服务器向数据段报头添加源物理地址和目的物理地址Answer: DQUESTION 40哪个术语描述的特定规则集决定了用于转发数据的消息格式和封装过程?A. 分段B. 协议C. 多路复用D. QoSE. 重组Answer: BQUESTION 41哪项与OSI模型的第四层相关联?A. IPB. TCPC. FTPD. TFTPAnswer: BQUESTION 42下面哪个术语定义了将数据分割成适合传输的小片?A. 协议B. 多路复用C. 分段D. 封装Answer: CQUESTION 43下面哪个过程是在一条共享的信道或网络介质上混合多个数据流?A. 多播B. 多路复用C. 封装D. 多方向Answer: BQUESTION 44下面什么与网络层相关联?A. IP地址B. 帧C. MAC地址D. 物理地址Answer: AQUESTION 45OSI模型各层从最高层到最底层的正确顺序如何?A. 应用层、表示层、会话层、网络层、传输层、数据链路层、物理层B. 应用层、表示层、会话层、传输层、网络层、数据链路层、物理层C. 应用层、会话层、表示层、传输层、网络层、数据链路层、物理层D. 应用层、表示层、会话层、网路层、数据链路层、传输层、物理层Answer: BQUESTION 46OSI模型的哪一层与在网络上的端到端的消息传送相关?A. 网络B. 传输C. 数据链路D. 应用Answer: BQUESTION 47应用层是OSI模型的第______层.A. 第1B. 第3C. 第4D. 第7Answer: DQUESTION 48OSI模型的哪三层构成了TCP/IP模型的应用层?(选三项)A. 应用层，会话层，传输层B. 应用层，表示层，会话层C. 应用层，传输层，网络层D. 应用层，网络层，数据链路层Answer: BQUESTION 49HTTP用来做什么?A. 将Internet名称转换成IP地址B. 提供远程访问服务器和网络设备C. 传送组成WWW网页的文件D. 传送邮件消息和附件Answer: CQUESTION 50邮局协议(POP)使用什么端口号?A. TCP/UDP端口53B. TCP端口80C. TCP端口25D. UDP端口110Answer: DQUESTION 51什么是GET?A. 客户端数据请求B. 上传资源或连接Web服务器的协议C. 以可以被截取并阅读的明文方式向服务器上传信息的协议D. 服务器响应Answer: AQUESTION 52哪一种是最常用的网络层服务?A. HTTPB. FTPC. TelnetD. E-mailAnswer: DQUESTION 53为成功的在客户端与服务器之间传送文件，FTP需要______个连接.A. 1B. 2C. 3D. 4Answer: BQUESTION 54DHCP能为网络上的客户端做什么?A. 有不受限的电话会话B. 播放视屏流C. 获得IP地址D. 跟踪间歇性的拒绝服务攻击Answer: CQUESTION 55Linux的UNIX操作系统使用SAMBA，协议的版本是?A. SMBB. HTTPC. FTPD. SMTPAnswer: AQUESTION 56下面什么连接使用Telnet?A. 文件传输协议(FTP)会话B. 简单文件传输协议(TFTP)会话C. 虚拟终端(VTY)会话D. 辅助(AUX)会话Answer: CQUESTION 57HTTP使用哪个端口号?A. 23B. 80C. 53D. 110Answer: BQUESTION 58SMTP使用哪个端口号?A. 20B. 23C. 25D. 143Answer: CQUESTION 59哪些是TCP的部分特性?(选二项)A. 可靠B. 无连接C. 没有流控D. 重传没有收到的任何内容Answer: ADQUESTION 60在传输层，哪种流量控制能使发送主机保持接受主机避免缓冲过载?A. 尽力传输B. 封装C. 流控D. 拥塞避免Answer: CQUESTION 61终端系统使用端口号选择适当的应用程序.什么是主机可以动态指派的最低的端口号?A. 1B. 128C. 256D. 1024Answer: DQUESTION 62在数据传输的过程中，接收主机负责什么?(选二项)A. 封装B. 带宽C. 分段D. 确认E. 重组Answer: DEQUESTION 63TCP头中的序列号是做什么用的?A. 重组分段成数据B. 标志应用层协议C. 标识下一个期待的字节D. 显示在一个会话中容许的最大数量的字节Answer: AQUESTION 64下面哪个决定了运行TCP/IP的主机在必需收到确认之前可以发送多少数据?A. 分段大小B. 传输速率C. 带宽D. 窗口大小Answer: DQUESTION 65TCP/UDP端口号的用处?A. 表明三次握手的开始B. 重组数据段到正确的顺序C. 标志发送者没有确认的情况下可以发送的数据包的数量D. 跟踪同时通过网络的不同的会话Answer: DQUESTION 66哪个协议提供了无连接的网络层服务?A. IPB. TCPC. UDBD. OSIAnswer: AQUESTION 67选择路由表中包含的三条信息.(选三项)A. 下一跳B. 源地址C. 度量D. 目的网络地址E. 最后一跳F. 默认网关Answer: ACDQUESTION 68在网络分段上过量的广播流量会引起哪项问题?(选三项)A. 消耗带宽B. 增加网络开销C. 需要复杂的地址结构D. 影响其它主机功能E. 依据所有权划分网络F. 更高的硬件要求Answer: ABDQUESTION 69以下哪项不是网络层的作用?(选二项)A. 路由B. 用IP地址编址数据包C. 传输的可靠性D. 应用数据分析E. 封装F. 解封装Answer: CDQUESTION 70对IP哪项是正确的?(选二项)A. IP代表International ProtocolB. 是最常用的网络层协议C. 它分析表示层数据D. 运行于OSI第2层E. 封装传输层数据分段Answer: BEQUESTION 71有关IP下列哪项是正确的?A. 它是面向连接的B. 它使用应用数据确定最佳路径C. 用于路由器和主机D. 它是可靠的Answer: CQUESTION 72有关网络层封装哪一项是正确的?(选二项)A. 为数据分段添加报头B. 在通往目的主机的路径中会发生很多次C. 由路径上的最后一台路由器执行D. 要添加源和目的地址E. 将传输成信息转换为帧Answer: ADQUESTION 73有关TCP和IP下面哪项是正确的?(选二项)A. TCP是无连接的，IP是面向连接的B. TCP是可靠的，IP是不可靠的C. IP是无连接的，TCP是面向连接的D. TCP是不可靠的，IP是可靠的E. IP运行于传输层Answer: BCQUESTION 74为什么IP“与介质无关”?A. 它封装一层指令B. 在所有的第一层介质上的运行都一样C. 可以运载视频和语音数据D. 不用一层介质就可工作Answer: BQUESTION 75有关静态和动态路由以下哪些是正确的?（选二项）A. 静态路由需要像RIP这样的路由协议B. 默认路由是动态路由C. 动态路由增加数据包处理开销D. 用静态路由将降低管理开销E. 路由可以同时使用静态和动态路由Answer: CEQUESTION 76哪个IP地址是网络地址?(选二项)A. 64.104.3.7/28B. 192.168.12.64/26C. 192.135.12.191/26D. 198.18.12.16/28E. 209.165.200.254/27F. 220.12.12.33/27Answer: BDQUESTION 77网络管理员正在建立包含22台主机的小型网络.ISP只分配了可路由的IP地址.网管员可以使用下面哪个地址块?A. 10.11.12.16/28B. 172.31.255.128/27C. 192.168.1.0/28D. 209.165.202.128/27Answer: BQUESTION 78以下哪个子网掩码可用于128.107.176.0/22网络中的主机?A. 255.0.0.0B. 255.248.0.0C. 255.255.252.0D. 255.255.255.0E. 255.255.255.252Answer: CQUESTION 79已经分配了地址块10.255.255.254/28给点到点WAN链路.这个地址块可以支持多少WAN?A. 1B. 4C. 7D. 14Answer: BQUESTION 80网络管理员建立有14台计算机和2个路由器接口的新网络.哪个是正确的子网掩码以使地址最少浪费?A. 255.255.255.128B. 255.255.255.192C. 255.255.255.224D. 255.255.255.240E. 255.255.255.248F. 255.255.255.252Answer: CQUESTION 81在南部分支机构的一台主机不能访问地址为192.168.254.222/224的服务器.检查主机时，你确定IPv4地址是169.254.11.15/16，有什么明显的问题?A. 主机使用链路本地地址B. 服务器的子网掩码无效C. 主机分配了一个广播地址D. 服务器认为主机在与服务器相同的逻辑网络上Answer: AQUESTION 82如果节点接受了帧并计算了CRC，但与FCS中的CRC不匹配，该节点将如何做?A. 丢弃帧B. 从CRC中重建帧C. 将帧转发到下一节点D. 关闭帧到达的接口Answer: AQUESTION 83下面哪种协议用于WAN?(选二项)A. 802.11B. EthernetC. HDLCD. PPPAnswer: CDQUESTION 84帧的数据字段内容是什么?A. 64字节B. 网络层PDUC. 第2层源地址D. 从应用层直接产生的数据Answer: BQUESTION 85以下哪项是基于竞争的MAC的特性?A. 无共享介质中使用B. 节点竞争对介质的使用C. 将MAC给上层D. 每个节点有特定时间使用介质Answer: BQUESTION 86下面哪项是LAN中数据链路子层?(选二项)A. 协议数据单元B. 逻辑链路控制C. MACD. 网络接口卡E. 载波多路访问Answer: BCQUESTION 87下面哪项描述了虚电路?A. 是一种错误检查技术B. 提供一种封装技术C. 仅用于点到点物理拓扑中D. 在两台网络设备间建立逻辑连接Answer: DQUESTION 88数据链路层执行下面哪项功能?A. 提供用户接口B. 确保主机间端到端的数据传输C. 将网络软件与硬件连接D. 在应用间建立并维护会话Answer: CQUESTION 89有关网络的逻辑拓扑下面哪项是正确的?A. 都是多路访问B. 提供物理编址C. 确定网络中节点如何连接D. 影响网络中使用的MAC类型Answer: DQUESTION 90编码的目的是什么?A. 标识帧中开始和结束的比特B. 用于表示计算机与网络介质连接所用的物理层连接器C. 在数据链路层控制帧放置于介质上的方法D. 在将数据比特送到介质上时,利用不同的电压、光模式或电磁波的表示方法Answer: DQUESTION 91以下哪项最好的描述了物理层的功能?A. 确保通过物理链路的可靠数据传输B. 确定两个端系统间的连通性和路径选择C. 实现物理地址、网络拓扑和介质接入D. 确定两个端系统之间链路功能规范和电气、光学和无线电信号Answer: DQUESTION 92UTP电缆通过哪个过程可以避免串扰?A. 电缆屏蔽B. 线对双绞C. 端点接地D. 电缆中的覆层Answer: BQUESTION 93相比铜缆,光缆有哪些优点?(选三项)A. 铜缆更贵B. 不受电磁干扰C. 更要小心处理D. 更大的线缆长度E. 比电流更高的传输效率F. 更大的带宽Answer: BDFQUESTION 94光纤中覆层的作用是什么?A. 包裹电缆B. 消除噪音C. 防止光损失D. EMI防护Answer: CQUESTION 95有关直通电缆下面哪项是正确的?(选二项)A. 用于思科控制台接口B. 可是是568A或568BC. 用于连接主机和交换机D. 不能连接两台交换机Answer: BCQUESTION 96以下哪项用于测量通过介质的实际数据传输速率?A. 带宽B. 输出C. 吞吐量D. 实际吞吐量Answer: CQUESTION 97以下哪项不对?A. 1Gbit/s=1 000 000 000bit/sB. 1Kbit/s=1 000bit/sC. 1Mbit/s=100 000bit/sD. 1Tbit/s=1 000 000 000 000bit/sAnswer: CQUESTION 98什么是同步?A. 在所有网络设备上保持相同的时间B. 传输数据时，设备所使用的时间机制C. 设备以相同的速度将比特传输到数据链路层D. 整个网络一致的比特时间Answer: BQUESTION 99关于比特时间哪项是正确的?A. 将应用数据封装为比特分段的时间B. 网卡将一个比特从数据链路层传到一层介质上的时间C. IEEE标准约定，所有网卡都相同D. 沿铜缆或光缆传输一个字节的时间Answer: BQUESTION 100以下哪项描述了传统以太网技术的局限?A. 缺乏可扩展性B. 介质昂贵C. 无冲突D. 与当前以太网帧格式不兼容Answer: AQUESTION 101以太网帧中的哪个字段用于错误检测?A. 类型B. 前导码C. 帧校验序列D. 目的MAC地址Answer: CQUESTION 102以太网MAC地址有多少位?A. 12B. 32C. 48D. 256Answer: CQUESTION 103以下哪个地址是用于以太网广播帧的目的地址的?A. 0.0.0.0B. 255.255.255.255C. FF-FF-FF-FF-FF-FFD. 0C-FA-94-24-EF-00Answer: CQUESTION 104在CSMA/CD中拥塞信号的目的是什么?A. 允许介质恢复B. 确保所有节点看到冲突C. 向其它节点通报这个节点将要发送D. 标识帧的长度Answer: BQUESTION 105历史上和传统的以太网的共同特点是什么?A. 相同的电缆类型B. 相同的网段长度C. 相同的逻辑拓扑D. 相同的安装成本Answer: CQUESTION 106以下哪项描述了到交换机接口的连接?A. 隔离广播B. 分割冲突域C. 使用交换机的MAC地址作为目的D. 交换机的每个接口重新生成比特Answer: BQUESTION 107哪项是以太网交换机建立MAC地址表条目的运行阶段?A. 过期B. 过滤C. 泛洪D. 学习Answer: DQUESTION 108如果到达交换机的帧中包含的源MAC地址没有列在MAC地址表中，将如何处理?A. 过期B. 过滤C. 泛洪D. 学习Answer: DQUESTION 109如果到达交换机的帧中包含的目的MAC地址没有列在MAC地址表中，将如何处理?A. 过期B. 过滤C. 泛洪D. 学习Answer: CQUESTION 110为什么高速以太网更容易产生噪音?A. 更多冲突B. 更短的比特时间C. 全双工运行D. UTP取代光纤Answer: BQUESTION 111给定网络178.5.0.0/16，请建立尽可能多的子网，每个子网至少100台主机。

catti英语一级考试真题及答案CATTI英语一级考试真题及答案1. 单选题：Which of the following words is spelled incorrectly?A. AccomodateB. AccommodateC. AccomodateD. Accommodate答案：A2. 阅读理解：Read the following passage and answer the questions that follow.Passage: The rapid development of technology has changed the way we live and work. With the advent of smartphones and the internet, communication has become faster and more efficient. People can now stay connected with friends and family across the globe with just a few taps on their devices.Question 1: What has the development of technology primarily affected?A. The way we travelB. The way we live and workC. The way we eatD. The way we exercise答案：BQuestion 2: What is one of the benefits of smartphones and the internet mentioned in the passage?A. They make communication slowerB. They make communication fasterC. They make communication more expensiveD. They make communication less efficient答案：B3. 完形填空：Fill in the blanks with the appropriate words from the options provided.In today's world, environmental issues have become a growing concern. Many people are now aware of the importance of_______ (A. protecting / B. polluting) the environment. Governments and organizations are taking steps to reduce pollution and promote _______ (C. sustainability / D. unsustainability) in various sectors.答案：A. protecting, C. sustainability4. 翻译题：Translate the following sentence from English to Chinese."The company's new policy has been met with mixed reactions from employees."答案：公司的新政策遭到了员工的不同反应。

2018年12月英语四级听力真题College English Test – Band 4大学英语四级考试Part II Listening Comprehension第二部分，听力理解Section A: Directions: In this section, you will hear three news reports.第一部分：在本节中，你将听到三则新闻报道。

At the end of each news report, you will hear two or three questions.每则新闻结束后，你将会听到两或三个问题。

Both the news report and the questions will be spoken only once.新闻和问题都将只放一遍。

After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D).听到问题后，从标记为A)、B)、C)和D)的四个选项中选出最佳答案。

Then mark the corresponding letter on Answer Sheet 1 with a single line through the center. 并在答题纸1的对应位置上填涂相应的字母。

News report 1新闻报道一A device that weighs less than one kilogram is part of a mission that will allow scientiststo deliver fourth generation or 4G mobile coverage to the moon in 2019.一个重量不足一千克的设备将在2019年助力科学家完成向月球提供第四代或4G移动通讯覆盖任务。