| 软件水平考试系统分析师易错题（2019/7/19） |
| 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7题：以下属于选择类排序法的是( )
A、堆栈排序法 B、插入排序法 C、冒泡排序法 D、快速排序法 |
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| 第8题：可行性研究主要从( )方面进行研究
A、技术可行性，经济可行性，系统可行性 B、技术可行性，经济可行性，操作可行性 C、经济可行性，系统可行性，操作可行性 D、经济可行性，系统可行性，社会可行性 |
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| 第9、10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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