【计算机类职业资格】系统分析师-专业英语及答案解析.doc

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1、系统分析师-专业英语及答案解析(总分：175.00，做题时间：90 分钟)OOP languages that create objects, such as (1) and (2) are beginning to take hold as viable tools for programmers. To effectively reuse objects, programmers need a place to store them such as an ODBMS or a RDBMS with object oriented extensions.Databases that hand

2、le object data not only let user store and retrieve (3) data, but also let them store objects created by OOP languages, to facilitate rapid software development and reuse, and let them (4) new multimedia applications combining multiple data types.RDBMS vendors have developed new extensions to existi

3、ng DB technology to accommodate the most common forms of (5) data.（分数：5.00）A.C+B.BASICC.PASCALD.CA.C+B.SMALLTALKC.PASCALD.CA.C+B.BASICC.PASCALD.structuredA.numericB.structuredC.buildD.buildA.numericB.FORTRANC.buildD.unstructuredFuture Computer Trends:The components of a PC will be built into the (6)

4、 and large plasma or electroluminescent flat panel display hanging on a partition wall will act as both a (7) and videophone display.A high resolution, touch sensitive LCD (8) into desktop will allow pan-based pointing and data input. In the home, meanwhile, computers will become as ubiquitous as TV

5、s.Computer interfaces will be far friendlier than (9) graphical user interfaces (GUI) of today. Computers will use “human interfaces“ based on multimedia.RISC microprocessors will finally obliterate the ever thinning gap between workstations and PCs. Similar advances in nonvolatile flash memory will

6、 lead to the replacement of magnetic (10) disks with electronic “silicon disks“.（分数：5.00）A.deskB.monitorC.builtD.mouse-drivenA.deskB.monitorC.builtD.mouse-drivenA.deskB.monitorC.builtD.mouse-drivenA.deskB.monitorC.builtD.mouse-drivenA.deskB.monitorC.builtD.hardAlthough the bulk of industry resources

7、 and energies have focused on developing the fastest (11) or slickest (12) , more and more mindshare is turning to the evolution of the computer interface. Advancements in the areas of input devices, (13) processing and virtual reality could lead to fundamental changes in the way human and computer

8、interact. The technological battlefield of the future will be adding layers between the user and the raw machine to make the (14) as invisible as possible. (15) represents the next evolutionary step for the interface.（分数：5.00）A.microprocessorB.operating systemsC.voiceD.interfaceA.microprocessorB.ope

9、rating systemsC.voiceD.interfaceA.microprocessorB.operating systemsC.voiceD.interfaceA.microprocessorB.operating systemsC.voiceD.interfaceA.microprocessorB.operating systemsC.voiceD.virtual realityAsynchronous Transfer Mode (ATM) is a (16) that promises to change the fabric of local and wide area co

10、mmunications.The key advantage of ATM is the capability to move voice, data, graphics and (17) at speeds of up to 2 gigabits per second.An ATM switch allows you to create a (18) network that is completely independent from the (19) configuration of the network.ATM uses a (20) called cell switching to

11、 convert data into fixed length cells of 53 bytes each, so they can be switched very quickly and efficiently.（分数：5.00）A.technologyB.video imagesC.logicalD.physicalA.technologyB.video imagesC.logicalD.physicalA.technologyB.video imagesC.logicalD.physicalA.technologyB.video imagesC.logicalD.physicalA.

12、technologyB.video imagesC.logicalD.techniqueThe heat generated by the operating system war between rivals IBM Corp. and Microsoft Corp. is (21) .Windows 95 and OS/2 introduce a new (22) . Both systems claim to multitask legacy DOS and 16-bit Windows applications. However, only OS/2 can provide full

13、memory (crash) protection for these legacy applications because it is capable of running each DOS and Windows application within its full-protected memory address space.Windows 95 will run all current Windows applications in the same shared- memory address space, affording full memory protection onl

14、y to the (23) 32-bit Windows 95 applications. In other word, Windows 95 users will have to (24) their current Windows applications to Windows 95 version to match the memory protection OS/2 now delivers.While OS/2 does afford superior memory protection and multitasking for legacy DOS and Windows appl

15、ications, it will not be able to run any Windows 95 applications. IBM may address this (25) in an update of the OS but has no present plans to do so.（分数：5.00）A.intensifyB.intensifiedC.intensifyingD.intensifiesA.placeB.environmentC.conditionD.actionA.oldB.bigC.newD.originalA.upgradeB.upstairC.downsta

16、irD.downgradeA.mistakeB.advantageC.benefitD.shortcomingTodays response to the data access dilemma eschews the traditional archival approach in favor of emerging standards for what are described as the documents of the future: compound documents. Product users and developers hope the latest standards

17、 effort-such as OpenDoc and Microsoft Corp.s Object Linking and Embedding (OLE) will (26) data accessibility.OpenDoc is a standards group (27) a common look and feel throughout documents, even though different applications are used.OLE technologies allow Microsoft to (28) its various software produc

18、ts. Microsoft creates, governs and distributes the OLE capability, which is what most (29) it from the open OpenDoc approach. Thus, users can assemble (30) of varying application to create compound documents. With OLE users can, for example, embed an Excel chart in a Microsoft word report.（分数：5.00）A

19、.getB.makeC.ensureD.takeA.seekingB.seekedC.seeksD.seekA.connectB.linkC.concatenateD.contactA.divideB.distinguishC.dividesD.distinguishesA.piecesB.documentC.contentD.filesThe primary advantages of a Client/Server system arise from splitting the processing between the client system and the database se

20、rver. Since the bulk of the database processing is done on the back-end, the speed of the DBMS isnt tied to the speed of the (31) .The major disadvantage of Client/Server system is the increased cost of (32) and support personnel who maintain the database server. There is also the issue of (33) with

21、 so many parts comprising the entire C/S system; Murphys Law can kick in-the more pieces that compose the system, the more pieces that can fail. Its also harder to track down problems when the system (34) . And it can initially take longer to get all the components set up and working together. All t

22、his is compounded by the general lack of experience and expertise of potential support personnel and programmers, due to the relative newness of the technology. As C/S system become more common, this problem should abate.Therefore the C/S system is more (35) .（分数：5.00）A.networkB.operating systemC.pe

23、rsonal computerD.workstationA.administrativeB.bureaucraticC.managerD.officialA.complexityB.possibilityC.simplicityD.varietyA.burnsB.crashesC.runsD.usesA.efficient and easy to setupB.efficient and robustC.efficient but difficult to maintainD.robust but difficult to setupAs the name implies, CTI (Comp

24、uter-Telephone-Integration) is the fusing of telephone operations with those performed by a computer. CTI has actually been around for a good two decades. Until recently, it required users to (36) a good deal of knowledge about telephone interconnect processes as well as networking and database prog

25、ramming to (37) even the most rudimentary tasks. These two skill sets are rarely possessed by the same individual.But today CTI has gone client/server. Microsoft corp. has included its client-side Telephony API (TAPI) with every copy of Windows 95. The companys service-side TAPI is now available for

26、 Windows NT. There are many telephony (38) that turn the interconnect portion of a CTI (39) into standard data programming, and low-cost, easy -to- create telephony is born. Better yet, many of these (38) are Visual Basic add-ons. CTI is also subject to all the cost benefits of cheaper, PC-based har

27、dware.The two portions of CTI are (40) （分数：5.00）A.acquireB.captureC.modifyD.possessA.acquireB.captureC.performD.possessA.goodnessB.toolkitsC.objectD.projectA.goodnessB.toolkitsC.objectD.projectA.interconnection and Telephony toolkitsB.interconnection and Visual Basic all-onesC.interconnection and pr

28、ogrammingD.networking and database programmingElectronic mail, or mail, as it is known to its many fans, has been around for over two decades. Typically, email systems support five basic functions, as described below. (41) refers to the process of creating messages and answers. (42) refers to moving

29、 messages from the originator to the recipient. (43) has to do with telling the originator what happened to the message. Was it rejected? Was it lost? (44) incoming message is needed. So people can read their email. (45) is the final step and concerns what the recipient does with the message after r

30、eceiving it.（分数：5.00）A.CompositionB.TransferC.ReportingD.DisplayingA.CompositionB.TransferC.ReportingD.DisplayingA.CompositionB.TransferC.ReportingD.DisplayingA.CompositionB.TransferC.ReportingD.DisplayingA.CompositionB.TerminatingC.ReportingD.DisplayingRapid application development (RAD) systems pu

31、rport to lighten the developers (46) by making it easy to program an application with simple intuitive steps.RAD tools (47) the developer everything needed to construct a fully functional application quickly and easily. They make short work of modifying the developed product to (48) changes after th

32、e program is finished. Applications developed with RAD tools are constructed as they are envisioned. As an applications real usefulness (49) , the developer armed with RAD tools should be able to (50) on new features with little fuss.（分数：5.00）A.burdenB.troubleC.taskD.weightA.offerB.orderC.referD.rel

33、easeA.accommodateB.accountC.decreaseD.eliminateA.appearancesB.emergesC.recognizesD.solvesA.beatB.changeC.debugD.tackAll known techniques for handling complex problems successfully seem to fall into one of the three classes: subdividing the problem (51) , ignoring irrelevant detail in a safe way (52)

34、 , and having an independent agent (53) the internal consistency (contextual checking). The first two provide guidelines for solving the problem, the third serves to provide early warnings. A good programming language supports all three.In subdividing problem, some of the subproblems may be similar

35、to the (54) problem. It leads us to a (55) solution. This (55) solution is viable provided each of the subproblems is easier to solve than the original problem.（分数：5.00）A.abrogationB.abstractionC.compositionD.contractionA.abrogationB.abstractionC.compositionD.contractionA.checkB.originalC.performD.r

36、ecursiveA.checkB.originalC.performD.recursiveA.checkB.originalC.performD.recursiveThe task at hand now is to (56) the programmers who still use yesterdays software technology to solve todays software problems. Object-oriented programming requires a new attitude toward problem (57) . Problem (57) wit

37、h computer system becomes more natural. Application can (58) be translated into (59) . Although it is commonly believed that it will be easier to train new programmers to use object-oriented techniques than to (60) programmers who have substantial experience in applying conventional programming lang

38、uage constructs.（分数：5.00）A.testB.forceC.educateD.touchA.solveB.solvesC.solvedD.solvingA.indirectlyB.directlyC.smoothlyD.quicklyA.classesB.classC.objectsD.objectA.trainB.retrainC.findD.recruitTCP functions at the Open System Interconnection (OSI) (61) layer, or Layer 4. Its chief responsibility is to

39、 ensure (62) end-to-end connectivity. IP, located one layer down, at the OSI network layer, or Layer 3, communicates the addresses of each (63) sender and receiver to the routers along the way. Routers and Layer 3 switches can read IP and other Layer 3 (64) . This information, combined with routing

40、tables and other network intelligence, is all it takes to get (65) the room or around the world via TCP/IP.（分数：5.00）A.transposeB.translateC.transmitD.transportA.flexibleB.reliableC.easyD.simpleA.packetB.packetsC.packetsD.packetsA.betterB.protocolsC.protocolD.goodA.acrossB.upC.offD.ridAn Intranet is

41、(66) the application of Internet technology within an internal or closed user group. Intranets are company (67) and do not have a (68) connection to the Internet. Used properly an Intranet is highly effective corporate tool, capable of regularly (69) information to empower the workforce with the inf

42、ormation needed to perform their roles. Used in this way, an Intranet represents a step towards the (70) office.（分数：5.00）A.simpleB.simplyC.singleD.singlyA.commonB.sharedC.specialD.specificA.physicalB.psychologicalC.spatialD.spiritedA.updateB.updatedC.updatesD.updatingA.painlessB.painnessC.paperlessD

43、.papernessIn a public-key cryptosystem, (71) encrypted with the public key can only be deciphered with the private key from the same (72) . Conversely, (71) encrypted with the private key can be decrypted only with the public key. Users can make their public keys (73) available or place them at a ke

44、y distribution center or others to access. However, the private key must be (74) safe. In public-key systems theres no (75) to find a safe channel for communicating a shared secret key.（分数：5.00）A.binarytextB.hypertextC.plaintextD.supertextA.lengthB.pairC.sizeD.spaceA.freeB.freelyC.locallyD.partlyA.k

45、eepB.keepedC.keepingD.keptA.moreB.necessaryC.needD.spaceYou want to use the Web to let (76) users or your customers look (77) corporate information. But you want to keep installation at the user end (78) and you dont want just. (79) to get (80) your databases. That may be where an application server

46、 enters the picture. For more user machine independent, these software packages, typically written in the (81) programming language for use on Windows (82) -based systems, act as go-betweens (83) browser-equipped end users to the databases that (84) the information they need to (85) .（分数：10.00）A.inf

47、ormerB.internalC.insideD.outsideA.atB.byC.inD.outA.simpleB.simplyC.singleD.singlyA.anyB.anyoneC.anythingD.anywhereA.intoB.offC.ontoD.outA.CB.C+C.SQLD.JavaA.NCB.NTC.PCD.PTA.linkB.linkageC.linkingD.linksA.heldB.heltC.holdD.holtA.accessB.accessingC.assertD.assertingMost IP layer-based proxy mechanisms,

48、 such as network address translation (NAT), only support uni-directional proxy, from the internal network to external network (the Internet). The proxy establishes the communication channel by (86) IP addresses. The IP addresses must be (87) . These proxy mechanisms prevent applications that must es

49、tablish return data channels from establishing their data channels, such as, multimedia applications. IP layer-based proxy mechanisms need additional software (88) for each application that uses (89) channels. SOCKS identifies communication targets through domain names, overcoming the restriction of using private IP addresses. SOCKS can use domain names to establish communication between separate LANs, with (90) IP addresses.（分数：5.00）A.manufacturingB.manipulatingC.conductD.implementA.routableB.locatableC.path-selectedD.road-definedA.groupsB.blocksC.modelsD.modulesA.plentyB.m