ch08_第八章_ 计算机专业考试类型.ppt

1、第八章 计算机专业考试类型,本章重点： 计算机专业考试的要点及结构； GRE专业考题实例分析； 全国软件人员水平考试英语试题实例分析； MCP专业考题实例分析； CCNA专业考题实例分析。,8.1.1 GRE专业考试简介 8.1.2 GMAT考试简介,81 专业考试的要点及结构,8.1.1 GRE专业考试简介,Committee of Examiners for the Computer Science Test Appointed with the advice of the Association for Computing Machinery（ACM）and the Computer S

2、ociety of the Institute of Electrical and Electronic Engineers（IEEE） The Graduate Record Examinations offers a General Test measuring verbal，quantitative，and ana1ytica1 abilities and Subject Tests measuring achievement in twenty fields。（Prior to the 19821983 testing year，these tests were known as th

3、e GRE Aptitude Test and Advanced Tests）the tests are administered by Educational Testing Service under policies determined by the Graduate record Examinations Board，an independent board affiliated with the Association of Graduate Schools and the Council of Graduate Schools in the United States. All

4、Graduate Record Examinations are confidential tests，administered under conditions signed to protect their security. Three sections of the General Test will become available for purchase. Beginning in July 1983, one edition of each of the following subject Tests will be available; Biology, Chemistry,

5、 Education, Engineering, Literature in English, Psychology. See the current GRE Information Bulletin for ordering information.,If, in taking a GRE Subject Test, you find what you consider to be an error or ambiguity in a test question that affects your response to the question, please tell the test

6、supervisor or write immediately after the test date to the GRE address given below. State in your letter the name and address of the center where you took the test，the test date，the name of the test, and the content of the question. Your comments will be reviewed by test specialists, and you wil1 re

7、ceive a written response.,8.1.2 GMAT考试简介,What is the GMAT? The Graduated Management Admission Test is designed to he1p graduate schoo1s of business assess the qualifications of applications for advanced study in business and management. GMAT scores are used by more than 800 graduate management progr

8、ams throughout the world, and about 600 schools require GMAT scores from each applicant. If you apply for admission to a graduate school of management, you will probably be asked to take the GMAT. GMAT scores are only one predictor of academic performance in the first year of graduate management sch

9、ool. The current GMAT test consists of eight separate1y timed sections, each containing 20 to 35 multiple-choice questionsThe total testing time is four hours. The GMAT measures general verbal and mathematical skills that are deve1oped over a long period of time and that are associated with success

10、in the first year of study at graduate schools of management.,8.2 GRE专业考题实例分析,8.2.1 计算机科学GRE专业考试内容 Content of the computer science test Content of the computer science test The test consists of about 80 multiple-choice questions，some of which are grouped in sets and based on such materials as diagra

11、ms，graphs，and program fragments. The approximate distribution of questions in each edition of the test according to content categories is indicated by the following outline. The percentage given are approximate; actual percentages wil1 slight1y form one edition of the test to another.,. Software Sys

12、tems and Methodology 35,A. Data organization Abstract data types（stacks，queues，lists，strings，trees，sets）; Imp1ementations of data types (pointers, hashing, encoding，packing，address arithmetic）；File organization (sequential, indexed, multilevel); Data models(hierarchical, relational，network） B. Organ

13、ization of Program Control Iteration and recursion; Functions, procedures, and exception handles; Concurrent process, interprocess communication, and synchronization. C. Programming Languages and Notation Applicative versus procedural languages；Control and data structure；scope，extent，and binding；Par

14、ameter passing；Expression evaluation D. Design and development Program specification；Development methodologies；Development tools E. Systems Examp1es（compilers，operating systems）；Performance models；Resource management（scheduling，storage allocation）；Protection and security, Computer Organization and A

15、rchitecture20,A. Logic Design Imp1ementation of combinational and sequential circuits；Functional properties of digital integrated circuits B. Processors and Control units Instruction sets，register and ALU organization； Control sequencing，register transfers microprogramming，pipelining C. Memories and

16、 their Hierarchies Speed ，capacity ，cost；Cache，main，secondary storage；Virtual memory， paging ，segmentation devices D. IO devices and interfaces Functiona1 characterization，data rate，synchronization；Access mechanism，interrupts E. Interconnection Bus and switch structures；Network principles and protoc

17、ols；Distributed resources, Theory一20,A. Automata and Language Theory Regu1ar languages (finite automata，nondeterministic finite automata，regular expressions)； Context-free languages（notations for grammars，properties such as emptiness，ambiguity）；Specia1 c1asses of context-free grammars；Turing machine

18、s and decidability；Processors for formal languages B. Correctness of programs Forma1 specifications and assertions；Verification techniques； C. Ana1ysis of a1gorithms Exact or asymptotic ana1ysis of the best，worst，or average case of the time and space comp1exity of specific a1gorithms；Upper and lower

19、 bounds on the complexity of specific problems；NP-completeness,Computational Mathematics一20,A. Discrete structures Basic e1ements of abstract a1gebra，mathematical logic，Boolean algebra，Combinatories，Graph theory，Set theory，Discrete probability， Recurrence relations B. Numerical mathematics Computer

20、arithmetic，Classical numerical algorithms，Linear algebra,. Special Topics5,A. Modeling and simulation B. Information retrieval C. Artificial intelligence D. Computer graphics E. Data communications,8.2.2 GRE计算机专业考试实际例题,1）Which of the following is true of interrupts？ （A）They are generated when memory

21、 cyc1es are “stolen”. （B）They are used in place of data channels. （C）They can indicate completion of an IO operation. （D）They cannot be generated by arithmetic operation. （E）None of the above. （2） If the grammar is ABC Ba|Ba CB|D Db|Eb Ec The nonterminal alphabet of the grammar is （A） A，B，C，D，E （B）

22、B，C，D，E （C） A，B，C, D，E，a，b, c（D） a，b, c （E） c Which of the following is not a sentence that is generated by grammar? （A） ab （B） aacb （C） abc （D）aaaab （E） aaa,（3）A certain computer represents floating point numbers by means of a signed magnitude fractional mantissa and an excess 16 base 4 exponent. T

23、he floating point format is illustrated below. Sign Exponent Mantissa 110010111000The decimal value of the number shown above is （A）-0.0546875 （B-0.5 （C）-2 （D）-3.5 （E）-14 （4）The word “complement” is frequently used to represent the negative of the given quantity. Provided that radix is n, thus, 1) A

24、 complement on n, obtained by subtracting each digit of the given quantity from n-1, adding unity to the least significant digit, and performing all resultant carries. 2) A complement on n-1, obtained by subtracting each digit of the given quantity from n-1. Try to solve： For 1），the complement of bi

25、nary ll010 is ，of decimal 465 is ,of octal 3516 is . For 2），the complement of binary l0001 is ，of decimal 654 is ，of octal 6153 is . （5）Which three types of information can processed by a message service？ （Answer ： ABC ） A. Text B. Audio C. Interactive D. video (6) Besides a11owing access to Novell

26、Resources，the Windows 95 NetWare Network Provider and print Provider provide which two additional functions？（Answer : CD） Provide Internet Access. B. Manages Security Levels. C. Logging on and of Netware Servers. D. Queuing Print Jobs.,8.2.3 TOEFL考试中的专业文体,0uestions l5 are based on the following： The

27、re are basically two kinds of printer worth considering these days for use with a small home or business computer，both of them of the impact variety，that is， those which strike through an inked ribbon in order to deposit the impression on the paper. The first，and by far the most popular，is the dot m

28、atrix variety，which is cheaper and faster than the second type，the formed character printer. This latter type，characterized by its use of a “daisywheel”arrangement， while suffering from the disadvantages mentioned，as well as from a lack of ability to reproduce graphics，is the only kind so far which

29、can offer quick changes of type style or size and which gives professional quality printing. What is an impact printer？ （A）the only printers available for home computers （B）a printer which uses business computers （C）a printer which uses an inked ribbon （D）a printer which makes impressionable deposit

30、s, It may be inferred from the passage that （A）some computer printers are not impact printers. （B）all impact printers are cheap. （C）dot-matrix printers were the first impact printers. （D）impact printers can only be used with small computers. Formed-character printers have the advantage over dot-matr

31、ix printers of （A）graphics production. （B）printing excellence. （C）cost （D）speed. With a“daisywheel”arrangement，the user can （A） Use a dot-matrix printer. （B）do without a formed-character printer （C） reproduce graphics. （D）vary his typeface. What would be the most suitable title for this passage？ （A）

32、Small computer printers: some considerations （B）The impact of printers on computer sales （C）Sma11 home and business computers （D）Dot-matrix printers superior to formed-character printers Questions 67 are based on the following： Based upon the Windows 95 operation，if you want to add new tape device a

33、nd SCSI card, what to do? (Answer: D) A. Use Windows NT setup add tape appropriate driver. B. Use Windows NT setup add SCSI appropriate driver. C. Reinstall Windows NT. D. Reboot Windows NT and the system can automatically detect. Color depth is dependent upon the number of bits used to display the

34、color of each pixel in video memory. This is referred to as bits per pixel or BPP. How many BPP are required to display 256 colors? (Answer：D） A. 4 B. 15 C. 16 D. 8,8.3 全国软件人员水平考试英语试题实例分析 8.3.1 全国软件人员水平考试简介,8.3 全国软件人员水平考试实例分析,初级程序员试题实例分析 (1) 1995年初级程序员试题 10 ATTRIB Displays or changes file attributes

35、. This command displays, sets or removes the Read-Only, Archive, System, and Hidden attributes assigned to files or directories. Syntax ATTRIB +R| -R+A|-A+S|-S+H|-Hdrive:path filename/s To display all attributes of all files in the current directory, use the following syntax: ATTRIB Parameter drive:

36、path filename Switches +R Sets the Read-Only file attribute. -R Clears the Read-Only file attribute. +A Sets the Archive file attribute. -A Clears the Archive file attribute. +S Sets the file as a System file. -S Clears the System file attribute. +H Sets the file as a Hidden file. -H Clears the Hidd

37、en file attribute. /S Processes files in the current directory and all of its subdirectories.,(2) 1995年初级程序员试题 11,以下各段叙述是对计算机专业术语的英文解释。从供选择的答案中，选出应填入内的正确术语，把编号写在答卷对应栏内。 A The basic unit of information in computer. It usually consists of eight binary bits. B It contains the programs the CPU executing

38、 and the data programs operate. C To add text or data to a file while editing. D The process of ordering data items by keys. E A language translator that converts a program written in a high-level language into machine code form. 供选择的答案: A: Bit Byte Word Data B: Programming Run Memory Operating syst

39、em C: Filename Insert Delete Database D: Input Keyboard Processor Sort E: Compiler Input Run Load,2. 程序员试题实例分析,1995年程序员试题 11 从供选择的答案中，选出应填入下面英语文句中 内的正确答案，把编号写在答卷的对应栏内。 Structured programming practices A rise to Pascal， in which constructs were introduced to make programs more readable and better B .

40、 C provided a combination of assembly language and high-level structure to create a general- purpose language that could be used from system to C programming. Next came object orientation, which is D of a methodology and design philosophy than a language issue. This is E by the addition of so-called

41、 OO extensions to current languages, such as C. 供选择的答案: A: giving given gave gives B: structure structured constructs structures C: logic function flexible application D: more little a matter important E: evidence evidenced evidences evidencing,(2) 1995年程序员试题 12,Although parallel server hardware has

42、 been available for some time, commercially available parallel versions of database A are just now arriving from B database makers to take advantage of the hardwares speed. Parallel hardware and database C are probably overkill for some applications, such as small departmental systems, analysts say.

43、 But user at large sites now installing parallel systems say they can D improve database response E for large decision-support, order-entry, and data warehouse applications. 供选择的答案: A: hardware software firmware NetWare B: leading lead leader leadering C: combination collection combinations collecti

44、ons D: differently drastically importance good E: action condition space time,3. 高级程序员试题分析解答,(1) 1995年高级程序员试题材11 从供选择的答案中，选出应填入下面英语文句中 内的正确答案，把编号写在答卷的对应栏内。 For users, microkernel technology promises A , compact, and sophisticated operating systems that are typically B across a range of hardware plat

45、forms. These operating systems will be customizable to let users run multiple operating system and application “personalities” on top of a single microkernel C . Microkernel-based systems can provide this flexibility because the core operating system functions are D from the large number of utilitie

46、s, 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 E every time they must add a new feature. 供选择的答案： A: slow fast quickly speed B: moveable made portable use C: bases foundations syste

47、ms foundation D: separate connections compared selected E: core center heart utility,(2) 1995年高级程序员试题材12,从供选择的答案中，选出应填入下面英语文句中 内的正确答案，把编号写在答卷的对应栏内。 Application development increasingly means Windows development, and the popularity of visual development tools has A in tandem with Windows itself. Thes

48、e tools create beautiful windowing B , and their fast development cycles and easy learning curves make them a good C for many types of PC development projects. Todays developers are leveraging these tools and the abundance of cheap, powerful PCs to shift the balance of power to the desktop. As the w

49、orld moves inexorably toward Window and other D user interfaces, developers can choose from an abundance of E oriented tools. Popular examples include Microsoft Corp.s Visual Basic, PowerSoft Corp.s PowerBuilder, Gupta Technology Corp.s SQL Windows, and so on. 供选择的答案： A: rise risen rised rising B: i

50、nterfaces pictures graphs books C: choose selections choice select D: graphics graph graphitic graphical E: visually lively quickly specially,8.4 MCP专业考题实例分析,8.4.1 微软MCP高级技术认证简介 8.4.2 MPC专业考试实例分析,MCSE考题实例分析,1. You are the administrator of Coho Vineyard network. The network consists of 10 windows 200

51、0 Advanced Server computer and 250 Windows 2000 Professional computers. You company has two domains and . You want to configure the Windows 2000 Professional computers in the domain to access the intranet site. You want users to be able to connect to the intranet site by using the URL http:/server A

52、 rather than its fully qualified domain name. What should you do? Add to the domain suffix search order on the computers. Add to the domain suffix search orders on the computers. Add to the exceptions list in the Proxy server settings on the computers. Configure the Proxy server settings on the comp

53、uters to bypass the proxy server for intranet addresses.,分析,Answer: A Explanation: Server A is located in the domain . If you add to the domain suffix then http:/ServerA,which would resolve this problem. This configuration can be done by opening TCP/IP properties, selecting the Advanced Button, selecting DNS Tab, selecting append these DNS Suffixes (in order), selecting Add, and entering .,MCSE考题实例分析,2. Your desktop computer has Windows 2000 Professional installed. You create a new dial-up connection to connect to the Internet. You configure the Internet