| 软件水平考试系统分析师易错题（2018/5/31） |
| 第1、2、3、4、5题：In the following essay, each bland has four choices.Choose the best answer and write down on the answer sheet. With the implementation of (6) the so – called network has become a reality. The provision of such facilities is the most important part of the network requirements. However, in many applications the communicating computers may be of different types. This means that they may use different programming languages and, more importantly, different forms of (7) interface between user(application)program, normally referred to ,as application processes, and the underlying communication services may be (8). For example, one computer may be a small single-user computer, while another may be a large (9) system. In the earlier days of computer communication, these issues meant that only closed communities of computers (that is, from the same manufacturer) could communicate with each other in a meaningful way. IBM’s systems NetworkArchitecture (SNA、andDEC’sDigital NetworkArchitectureDNA、are just two examples of communication software packages produced by manufacturers to allow their systems to be intercormected together. These proprietary packages, however, of which there am still many inexistence, do not address the problem of universal interconnect ability, or open systems interconnection. In an attempt to alleviate this problem,(10) ,in the late 1970s,formulated a reference model to provide a common basis (or the coordination of standards developments and to allow existing and evolving standards activities to be placed into perspective with one another.
(6) A、communicationchannel B、protocols C、datachannel D、publiccommunication (7) A、database B、datarepresentation C、protocols D、datacommunication (8) A、same B、similar C、different D、dependent (9) A、multi-user B、client C、server D、full-user (10) A、DNA B、SNA C、theOSI D、theISO |
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| 第6、7题：因计算机硬件和软件环境的变化而作出的修改软件的过程称为(7)，为增加软件功能、增强软件性能、提高软件运行效率而进行的维护活动称为(8)
(7)，(8) A、校正性维护 B、适应性维护 C、完善性维护 D、预防性维护 |
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| 第8题：渐增式是将模块一个一个地连人系统，每连入一个模块( )
A、只需要对新连入的模块进行测试 B、都不需要再进行测试 C、要对新子系统进行测试 D、都要进行回归测试 |
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| 第9、10题：两个公司希望通过Internet进行安全通信保证从信息源到目的地之间的数据传输以密文形式出现，而且公司不希望由于在传输节点使用特殊的安全单元而增加开支，最合适的加密方式是(1)，使用的会话密钥算法应该是(2)
(1) A、链路加密 B、节点加密 C、端—端加密 D、混合加密 (2) A、RSA B、RC—5 C、MD5 D、ECC |
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| 第11题：需求分析最终结果是产生( )
A、项目开发计划 B、需求规格说明书 C、设计说明书 D、可行性分析报告 |
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