| 软件水平考试系统分析师易错题（2018/4/18） |
| 第1题：对于“指针”和“链”，下面的说法正确的是，( )
A、它们是数据物理组织的两种形式 B、它们是数据逻辑组织的两种形式 C、它们是数据物理组织的两种基本工具 D、它们是数据逻辑组织的两种基本工具 |
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| 第2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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| 第3、4、5题：用Huffman(霍夫曼)算法求带权的2，3，5，7，8的最优二叉树T，那么T的权为(2)
T中有(3)处树叶，共有(4)个结点 (2) A、45 B、50 C、55 D、60 (3) A、4 B、5 C、6 D、7 (4) A、6 B、7 C、8 D、9 |
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| 第6题：( )信息传输的安全应保证信息在网络传输的过程中不被泄露和不被攻击。下列哪些属于攻击方法?
I.复制信息 II.剪裁信息 III.窃听信息 A、I和II B、II和III C、I和III D、全部 |
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| 第7、8、9、10、11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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