软件水平考试系统分析师易错题(2015-11-20) |
第1题:BSP方法的资源识别过程是按资源生命周期的四个阶段来划分的,下列( )过程属于回收或分配阶段 A.财政划分 B.应收款项 C.付账 D.普通会计 |
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第2、3、4、5、6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 Network Architecture (SNA) and DEC’s Digital Network Architecture (DNA) 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7题:根据质量管理的基本原理,所进行的PDCA循环,其中“D”是指( ) A.计划 B.实施 C.检查 D.处理 |
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第8题:在谓词演算中,P(a)是xp(x)的有效结论,根据是( )。 A.US规则 B.UG规则 C.ES规则 D.EG规则 |
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第9题:下列对关系的叙述中( )不正确的 A.关系中的每个属性是不可分解的 B.在关系中元组的顺序是无关紧要的 C.任意的一个二维表都是一个关系 D.在关系中任意两个元组不能完全相同 |
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第10题:用户A通过计算机网络向用户B发消息,表示自己同意签订某个合同,随后用户A反悔不承认自己发过该条消息。为了防止这种情况发生,应采用( ) A.数字签名技术 B.消息认证技术 C.数据加密技术 D.身份认证技术 |
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第11、12题:一个局域网中某台主机的IP地址为176.68.160.12,使用20位作为网络地址,那么该局域网的子网掩码为(11)最多可以连接的主机数为(12) (11) A.255.255.246.0 B.255.255.244.0 C.255.255.240.0 D.255.242.0.0 (12) A.1022 B.2046 C.4094 D.4096 |
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第13题:某软件公司开发的《财务之星》管理软件,在我国受法律保护的依据是( ) A.《中华人民共和国专利法》 B.《中华人民共和国科学技术进步法》 C.《中华人民共和国商标法》 D.《中华人民共和国著作权法》 |
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第14题:进行系统修改时可能会产生维护的副作用,没有( ) A.修改数据的副作用 B.修改错误后,又引入了新的错误 C.修改代码的副作用 D.文档资料的副作用 |
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第15题:在关系数据库设计中,定义数据库全局模式是( )阶段的内容。 A.需求分析 B.概念设计 C.逻辑设计 D.物理设计 |
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