软件水平考试（初级）程序员上午（基础知识）模拟试卷29

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(74)is NOT served by building a prototype.
- A．It takes the place of the final system
- B．It is used as the foundation of the larger projects
- C．It assists in estimating the cost of the project
- D．It assists in gathering software requirements
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The(75)is a collection of computers connected together by phone lines that allows for the global sharing of information.
- A．interface
- B．Internet
- C．LAN
- D．WWW
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Black-box and white-box testing method ale often used in software testing phase, in which, the white-box is mainly used to test software's(73).
- A．external function of a program
- B．reasonableness of structure
- C．internal logic of a program
- D．correctness of a program
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(71)is true regarding simple sort techniques.
- A．Both insertion sort and selection sort require O(n)moves.
- B．Exchange sort is frequently referred to as a bubble sort.
- C．If random data are in an array that is to be sorted, an insertion sort will give the best performance for large elements with small sort items.
- D．Exchange sort is the least expensive.
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Software document is an important part of software and a basis of software development phase. It also influnces software's(72).
- A．Expansibility
- B．Reusability
- C．Portability
- D．Maintenance
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采用全双工通信方式，数据传输的方向性结构为(70)。
- A．可以在两个方向上同时传输
- B．只能在一个方向上传输
- C．可以在两个方向上传榆，但不能同时进行
- D．以上都错
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(69)实现传输线上的位流信号同步。
- A．物理层
- B．数据链路层
- C．网络层
- D．应用层
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堆栈和队列的相同之处是(68)。
- A．元素的进出满足先进后出
- B．元素的进出满足先进先出
- C．只允许在端点进行插入和删除操作
- D．无共同点
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SQL中的视图提高了数据库系统的(67)。
- A．完整性
- B．并发控制
- C．隔离性
- D．安全性
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UML是软件开发中的一个重要工具，它主要应用于(66)。
- A．基于瀑布模型的结构化方法
- B．基于需求动态定义的原型化方法
- C．基于对象的面向对象的方法
- D．基于数据的面向数据流的开发方法
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