【计算机类职业资格】数据库系统工程师-计算机专业英语(四)及答案解析.doc

1、数据库系统工程师-计算机专业英语(四)及答案解析(总分：45.00，做题时间：90 分钟)In object-oriented (51) , objects can be viewed as reusable components, and once the programmer has developed a (52) of these components, he can (53) the amount of new coding required. But (52) a (54) is no simple task because the integrity of the Origina

2、l software design is critical. Reusability can be a mixed blessing for user, too, as a programmer has to be able to find the object he needs. But if (55) is your aim, reusability is worth the risk.（分数：5.00）(1).A. complexity B. creating C. indisposingD. library E. maximize F. minimizeG. reading H. pr

3、ocedure I. productivityJ. programming K. security L. using（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.(2).A. complexity B. creating C. indisposingD. library E. maximize F. minimizeG. reading H. procedure I. productivityJ. programming K. security L. using（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.(3).A. complexity B. cre

4、ating C. indisposingD. library E. maximize F. minimizeG. reading H. procedure I. productivityJ. programming K. security L. using（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.(4).A. complexity B. creating C. indisposingD. library E. maximize F. minimizeG. reading H. procedure I. productivityJ. programming K. secu

5、rity L. using（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.(5).A. complexity B. creating C. indisposingD. library E. maximize F. minimizeG. reading H. procedure I. productivityJ. programming K. security L. using（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.For users, microkernel technology promises (90) , compact and sophist

6、icated operating systems that are typically (91) across a range of hardware platforms. These operating systems will be customizable to let users run multiple operating system and application “personalities“ on top of a single microkernel (92) .Microkernel based systems can provide this flexibility b

7、ecause the core operating system functions are (93) from the large number of utilities, features and extensions that are layered on top of them. As a result, updating and maintaining operating system is easier, since developers dont have to modify the (94) every time they must acid a new feature.（分数

8、5.00）(1).A. slow B. fast C. quickly D. speed（分数：1.00）A.B.C.D.(2).A. moveable B. made C. portable D. use（分数：1.00）A.B.C.D.(3).A. bases B. foundations C. systems D. foundation（分数：1.00）A.B.C.D.(4).A. separate B. connected C. compared D. selected（分数：1.00）A.B.C.D.(5).A. core B. center C. heart D. utility

9、分数：1.00）A.B.C.D.When most people refer to multimedia, they generally mean the combination of two or more continuous media, usually with some user (115) . In practice, the two media are normally audio and video, this is, (116) plus moving (117) .It should be obvious by now that transmitting multimed

10、ia material in uncompressed form is completely out of (118) . The only hope is that massive compression is possible. Fortunately, a large body of research over the past few decades has led to many compression techniques and algorithms that make multimedia transmission (119) .（分数：5.00）(1).A. display

11、B. games C. help D. interactionE. pictures F. sound G. web（分数：1.00）A.B.C.D.E.F.G.(2).A. display B. games C. help D. interactionE. pictures F. sound G. web（分数：1.00）A.B.C.D.E.F.G.(3).A. display B. games C. help D. interactionE. pictures F. sound G. web（分数：1.00）A.B.C.D.E.F.G.(4).A. impossible B. fearfu

12、l C. feasible D. programE. question F. ting（分数：1.00）A.B.C.D.E.F.(5).A. impossible B. fearful C. feasible D. programE. question F. ting（分数：1.00）A.B.C.D.E.F.WebSQL is a SQL-like (26) language for extracting information from the web. Its capabilities for performing navigation of web (27) make it a usef

13、ul tool for automating several web-related tasks that require the systematic processing of either ail the links in a (28) , all the pages that can be reached from a given URL through (29) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that ca

14、n be queried via the Common (30) Interface.（分数：5.00）(1).A. query B. transaction C. communication D. programming（分数：1.00）A.B.C.D.(2).A. browsers B. servers C. hypertexts D. clients（分数：1.00）A.B.C.D.(3).A. hypertext B. page C. protocol D. operation（分数：1.00）A.B.C.D.(4).A. paths B. chips C. tools D. dire

15、ctories（分数：1.00）A.B.C.D.(5).A. Router B. Device C. Computer D. Gateway（分数：1.00）A.B.C.D.Programming is a (46) that has various engineering and (47) aspects. Although most of these aspects are interrelated, each of them covers a number of (48) and goals winch are very specific. The progress being made

16、 in teaching (49) is reflected by the fact that most (50) science curricula contain a broad spectrum of programming courses, each emphasizing a different aspect of programming.（分数：5.00）(1).A. notation B. physical C. functionD. discipline E. philosophy F. software engineeringG. characteristics H. mat

17、hematical I. mathematicalJ. program K. method L. computer（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.(2).A. notation B. physical C. functionD. discipline E. philosophy F. software engineeringG. characteristics H. mathematical I. mathematicalJ. program K. method L. computer（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.(3).A

18、 notation B. physical C. functionD. discipline E. philosophy F. software engineeringG. characteristics H. mathematical I. mathematicalJ. program K. method L. computer（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.(4).A. notation B. physical C. functionD. discipline E. philosophy F. software engineeringG. charact

19、eristics H. mathematical I. mathematicalJ. program K. method L. computer（分数：1.00）A.B.C.D.E.F.G.H.I.J.K.L.(5).A. notation B. physical C. functionD. discipline E. philosophy F. software engineeringG. characteristics H. mathematical I. mathematicalJ. program K. method L. computer（分数：1.00）A.B.C.D.E.F.G.

20、H.I.J.K.L.Most computer systems are (165) to two different groups of attacks: Insider attacks and outsider attacks. A system that is known to be (166) to an outsider attack by preventing (167) from outside can still be vulnerable to the insider attacks accomplished by abusive usage of (168) users. D

21、etecting such abusive usage as well as attacks by outsides not only provides information on damage assessment, but also helps to prevent future attacks. These attacks are usually (169) by tools referred to as Intrusion Detection Systems.（分数：5.00）(1).A. vulnerable B. week C. sensitively D. helpless（分

22、数：1.00）A.B.C.D.(2).A. reliable B. secure C. indestructible D. steady（分数：1.00）A.B.C.D.(3).A. visit B. access C. I/O D. read/write（分数：1.00）A.B.C.D.(4).A. power B. rights C. authorized D. common（分数：1.00）A.B.C.D.(5).A. searched B. checked C. tested D. detected（分数：1.00）A.B.C.D.In recent years, one of the

23、 more popular topics for panel discussions at computer conferences and trade (61) has been the “RISC versus CISC“ debate.RISC processors feature a small number of instructions that each executes in (62) machine cycle. CISC processors use complex instructions that can take several cycles to execute.T

24、he RISC versus CISC debate wont be decided by panel discussion; it will be won in the marketplace. And the deciding factor may have little to do with (63) of instructions and registers and more to do with parallelism.Since their conception, RISC processors have been evolving toward micro parallelism

25、 incorporating parallel-processing features (64) the processor, RISC processors feature pipelining, whereby many instructions can be decoded while one instruction executes. RISC processors, however, are moving toward pipelines for each unit of the processor.CISC processors also employ pipelining. T

26、hey have many integer instructions that execute in one cycle, but the varying execution times of CISC instructions (65) the effectiveness of parallelism.（分数：5.00）(1).A. union B. two C. numbers D. betweenE. limit F. contents G. shows H. oneI. within J. enhance（分数：1.00）A.B.C.D.E.F.G.H.I.J.(2).A. union

27、 B. two C. numbers D. betweenE. limit F. contents G. shows H. oneI. within J. enhance（分数：1.00）A.B.C.D.E.F.G.H.I.J.(3).A. union B. two C. numbers D. betweenE. limit F. contents G. shows H. oneI. within J. enhance（分数：1.00）A.B.C.D.E.F.G.H.I.J.(4).A. union B. two C. numbers D. betweenE. limit F. content

28、s G. shows H. oneI. within J. enhance（分数：1.00）A.B.C.D.E.F.G.H.I.J.(5).A. union B. two C. numbers D. betweenE. limit F. contents G. shows H. oneI. within J. enhance（分数：1.00）A.B.C.D.E.F.G.H.I.J.Mobile computers-which (71) laptops, notebooks, subnotebooks and handhelds- (72) so ubiquitous in such a sho

29、rt time, no surprise to hear who say: “It will define the leading edge (73) the next five years or so.“ The most remarkable (74) mobile computers is the amount of data storage and memory packed (75) their tiny boxes. These devices not only handle windows easily but also run storage-hungry programs.（

30、分数：5.00）(1).A. included B. include C. have includedD. have become E. had become（分数：1.00）A.B.C.D.E.(2).A. included B. include C. have includedD. have become E. had become（分数：1.00）A.B.C.D.E.(3).A. from B. for C. about D. atE. on F. into（分数：1.00）A.B.C.D.E.F.(4).A. from B. for C. about D. atE. on F. int

31、o（分数：1.00）A.B.C.D.E.F.(5).A. from B. for C. about D. atE. on F. into（分数：1.00）A.B.C.D.E.F.Many word processing programs include spell checker. It checks the spelling of every word in a (120) by looking up each word in its dictionary. If the word does not appear in the dictionary the user is (121) to

32、possible misspelling and possible corrections are often (122) . Spell checker does not recognize unusual people names or specialized terms, but it will often allow you to create your own personal dictionary of specialized words you often use. Spell checker is a valuable aid to proofreading, but it c

33、an not catch the (123) of one correctly spelled word for another (such as form for from). Thus it does not (124) a document is free of spelling errors.（分数：5.00）(1).A. document B. equipmentC. program D. statement（分数：1.00）A.B.C.D.(2).A. alerted B. alternate C. guessed D. guidedE. suggested F. surprise

34、d（分数：1.00）A.B.C.D.E.F.(3).A. alerted B. alternate C. guessed D. guidedE. suggested F. surprised（分数：1.00）A.B.C.D.E.F.(4).A. addition B. conditionC. notation D. substitution（分数：1.00）A.B.C.D.(5).A. committee B. correct C. guarantee D. prove（分数：1.00）A.B.C.D.数据库系统工程师-计算机专业英语(四)答案解析(总分：45.00，做题时间：90 分钟)In

35、 object-oriented (51) , objects can be viewed as reusable components, and once the programmer has developed a (52) of these components, he can (53) the amount of new coding required. But (52) a (54) is no simple task because the integrity of the Original software design is critical. Reusability can

36、be a mixed blessing for user, too, as a programmer has to be able to find the object he needs. But if (55) is your aim, reusability is worth the risk.（分数：5.00）(1).A. complexity B. creating C. indisposingD. library E. maximize F. minimizeG. reading H. procedure I. productivityJ. programming K. securi

37、ty L. using（分数：1.00）A.B.C.D.E.F.G.H.I.J. K.L.解析：(2).A. complexity B. creating C. indisposingD. library E. maximize F. minimizeG. reading H. procedure I. productivityJ. programming K. security L. using（分数：1.00）A.B.C.D. E.F.G.H.I.J.K.L.解析：(3).A. complexity B. creating C. indisposingD. library E. maxim

38、ize F. minimizeG. reading H. procedure I. productivityJ. programming K. security L. using（分数：1.00）A.B.C.D.E.F. G.H.I.J.K.L.解析：(4).A. complexity B. creating C. indisposingD. library E. maximize F. minimizeG. reading H. procedure I. productivityJ. programming K. security L. using（分数：1.00）A.B. C.D.E.F.

39、G.H.I.J.K.L.解析：(5).A. complexity B. creating C. indisposingD. library E. maximize F. minimizeG. reading H. procedure I. productivityJ. programming K. security L. using（分数：1.00）A.B.C.D.E.F.G.H.I. J.K.L.解析：解析 在面向对象的程序设计中，对象可被看做是一种可重用的构件。一旦程序员开发了一个构件库，就可以使新程序需要的代码数量最小化。但是，建立一个构件库却并非易事，因为最初的软件设计的完整性是很重要

40、的。当程序员能找到所需要的对象时，对用户来说，可重用性是一个好坏参半的事情。但是，如果效率是你追求的目标，那么可重用性还是值得一用的。For users, microkernel technology promises (90) , compact and sophisticated operating systems that are typically (91) across a range of hardware platforms. These operating systems will be customizable to let users run multiple operat

41、ing system and application “personalities“ on top of a single microkernel (92) .Microkernel based systems can provide this flexibility because the core operating system functions are (93) from the large number of utilities, features and extensions that are layered on top of them. As a result, updati

42、ng and maintaining operating system is easier, since developers dont have to modify the (94) every time they must acid a new feature.（分数：5.00）(1).A. slow B. fast C. quickly D. speed（分数：1.00）A.B. C.D.解析：(2).A. moveable B. made C. portable D. use（分数：1.00）A.B.C. D.解析：(3).A. bases B. foundations C. syst

43、ems D. foundation（分数：1.00）A.B.C.D. 解析：(4).A. separate B. connected C. compared D. selected（分数：1.00）A. B.C.D.解析：(5).A. core B. center C. heart D. utility（分数：1.00）A. B.C.D.解析：解析 对用户而言，微内核技术有希望实现快速、紧凑和复杂的操作系统，这种操作系统能在许多硬件平台上方便地移植，还可以定制，以使用户可在单个微内核基础亡运行多个操作系统和应用程序。基于微内核的系统之所以能够提供如此的灵活性，是因为核心的操作系统功能与基于它之

44、上的大量应用工具程序、特征和扩展功能是分离的。这样，更新和维护操作系统变得更加容易，因为开发人员不必在每次加入一个新特征时都修改核心。When most people refer to multimedia, they generally mean the combination of two or more continuous media, usually with some user (115) . In practice, the two media are normally audio and video, this is, (116) plus moving (117) .It s

45、hould be obvious by now that transmitting multimedia material in uncompressed form is completely out of (118) . The only hope is that massive compression is possible. Fortunately, a large body of research over the past few decades has led to many compression techniques and algorithms that make multi

46、media transmission (119) .（分数：5.00）(1).A. display B. games C. help D. interactionE. pictures F. sound G. web（分数：1.00）A.B.C.D. E.F.G.解析：(2).A. display B. games C. help D. interactionE. pictures F. sound G. web（分数：1.00）A.B.C.D.E.F. G.解析：(3).A. display B. games C. help D. interactionE. pictures F. soun

47、d G. web（分数：1.00）A.B.C.D.E. F.G.解析：(4).A. impossible B. fearful C. feasible D. programE. question F. ting（分数：1.00）A.B.C.D.E. F.解析：(5).A. impossible B. fearful C. feasible D. programE. question F. ting（分数：1.00）A.B.C. D.E.F.解析：解析 大多数人谈论多媒体时往往指的是两种或多种连续媒体的组合，通常还融合一些用户的交互。实际上，这两种媒体通常是指音频和视频，也就是声音加上运动着的画

48、面。现在人们已经知道使用非压缩方式传输多媒体信息是完全不可能的，惟一的手段就是进行大幅度的压缩。幸运的是，过去几十年进行的很多研究已经产生了很多压缩技术和算法，从而使多媒体传送成为可能。WebSQL is a SQL-like (26) language for extracting information from the web. Its capabilities for performing navigation of web (27) make it a useful tool for automating several web-related tasks that require

49、the systematic processing of either ail the links in a (28) , all the pages that can be reached from a given URL through (29) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (30) Interface.（分数：5.00）(1).A. query B. transaction C. communication D. programming（分数：1.00）A. B.C.D.解析：(2).A. browsers B. servers C. hypertexts D. clients（分数：1.00）A.B.C. D.解析：(3).A. hypertext B. page C. protocol D. operation（分数：1.00）A.B. C.D.解析：(4).A. paths B. chips C. tools D. directories（分数：1.00）A