摘要：对于【数据库系统工程师】软考考试而言，试题无疑是最重要的学习资料之一。在软考备考过程中，吃透试题、掌握试题所考知识点、熟悉试题的出题思路，对我们提升分数的效果是最明显的，通过对试题的反复练习，还可以查漏补缺。今天，给大家带来【2017年5月 数据库系统工程师 上午题】部分试题的详解，一起来看看吧~



1、以下路由策略中，依据网络信息经常更新路由的是( )。
A、 静态路由
B、 洪泛式
C、 随机路由
D、 自适应路由

答案:D
答题解析:

静态路由路由信息是不进行路由信息更新的；

动态路由选择算法就是自适应路由选择算法，是依靠当前网络的状态信息进行决策，从而使路由选择结果在一定程度上适应网络拓扑结构和通信量的变化，需要依据网络信息经常更新路由。

随机路由使用前向代理来收集网络中的有限全局信息即当前结点到其源结点的旅行时间,并以此来更新结点的旅行时间表; 算法根据结点旅行时间表所记录的历史信息和当前的链路状态来共同确定一个邻结点的路由质量,并以此为参考随机路由分组来均衡网络负载。

洪泛（mflood）路由算法是一个简单有效的路由算法，其基本思想是每个节点都是用广播转发收到的数据分组，若收到重复分组则进行丢弃处理。

2、The beauty of software is in its funciion ,in its internal srurcture,and in zhe way inwhich it is created by a team. To a user，a program with just the right features presented through an intuitive and (请作答此空) interface is beautiful.To a soware designer，an intemal sucre that is partitioned in a simple and intuitive manner，and that minirnízes intemal coupling is beautiful.To developers and managers ，a motivated tenof developers makingignificant progress eve week，and producing defect-free code，is beautifu l. There is beauty on all these levels.Our world needs software -- 10ts of syears ago soware was somethingthat ran in a few big and expensive machines. years ago it was something that ran in most companies and industrial settings. Now there is sware running in our cell phones ， watches ，appliances，automobi1es ，toys，and tools. And need for new and betler soware never ( ) As our civilization grows and expands，as developirig nations build their masuctures，as deve10ped nations striveωachieve ever greater efficiencies，the need for more and more software ( )to increase. It would be a great shame if，in all that soware，there was no beauty.We know that soware can be uglWe know that it can be hard to use，unreliable ，and carelessly structured. We know that there are software systems whose tangled and careless intemal structures make them expensive and difficult to change. We know that there are soware systems that present their features through an awkward and cumbersome interface.We know that there are software systems that crash and misbehave. These are ( ) systems. Unfortunately ，as a profession ，soware developers tend to create more ugly systems than beautiful ones.There is a secret at the best sofuλrare developers know. Beauty is cheaper than ugliness. Beauty is faster than ugliness. A beautiful soware system can be built and maintained in less time，and for less money，than an ugly one. Novice soware developers don't understand is. They think that they have to do everything fast and quick.They think that beauty is ( ). No! By doing things fast and quick，they make messes that make the software stiff and hard to understand. Beautiful systems are flexible and easy to understand. Building them and maintaining them is a joy. It is ugliness that is impractical.Ugliness will slow you down and make your software expensive and brittle. Beautiful systems cost the least to build and maintain ，and are delivered soonest.
A、simple
B、Hard
C、complex
D、duplicated

答案:A
答题解析:

软件的优点在于其功能，内部结构以及由团队创建的方式。对于用户来说，通过直观和(请作答此空)界面呈现的正确功能的程序是美丽的。对于软件设计师来说，分割的内部结构是一种简单而直观的方式，最小化内部耦合是美观的。对于开发人员和经理来说，一个积极的开发团队每周都取得重大进展，并且生产无缺陷的代码是美丽的。所有这些级别都有美丽。

我们的世界需要大量软件。五十年前，软件是在大多数公司和工业环境中运行的。现在软件存在在我们的手机，手表，电器，汽车，玩具和工具中。并且对新的和更好的软件的需求永远不会( )。随着我们文明的发展和壮大，随着发展中国家建设基础设施，发达国家努力实现更高的效率，越来越多的软件需求( )增长。如果在所有的软件中没有美丽的话，这将是一个很大的耻辱。

我们知道软件可能是丑的。我们知道它可能很难使用，不可靠，粗心大意的结构。我们知道有一些软件系统的纠结和粗心的内部结构使得它们变得昂贵和难以改变。我们知道有一些软件系统通过尴尬和繁琐的界面来呈现其功能。我们知道有软件系统崩溃和行为不端。这些都是( )系统。不幸的是，作为一个专业，软件开发人员倾向于创建丑陋的系统比美丽的系统更多。

这是最好的软件开发者知道的秘密。美丽的比丑陋的更便宜。美丽的比丑陋的更快。一个美丽的软件系统相当于一个丑陋的系统来说，建立和维护要花的时间与金钱会少得多。很多新手软件开发人员不明白这一点。他们认为做每一个事情必须快速，更快速。他们认为美是( )。没有！通过快速，快速地做事情，他们使软件变得僵硬，难以理解。美观的系统灵活易懂。建立和维护他们是一种快乐。丑陋是不切实际的。丑陋会减慢你的速度，会使你的软件昂贵而脆弱。美观的系统成本最低，建立和维护成本最低，交货时间最短。

A simple（简单） B hard（困难） C complex（复杂） D duplicated（被复制）

3、The beauty of software is in its funciion ,in its internal srurcture,and in zhe way inwhich it is created by a team. To a user，a program with just the right features presented through an intuitive and ( ) interface is beautiful.To a soware designer，an intemal sucre that is partitioned in a simple and intuitive manner，and that minirnízes intemal coupling is beautiful.To developers and managers ，a motivated tenof developers makingignificant progress eve week，and producing defect-free code，is beautifu l. There is beauty on all these levels.Our world needs software -- 10ts of syears ago soware was somethingthat ran in a few big and expensive machines. years ago it was something that ran in most companies and industrial settings. Now there is sware running in our cell phones ， watches ，appliances，automobi1es ，toys，and tools. And need for new and betler soware never (请作答此空) As our civilization grows and expands，as developirig nations build their masuctures，as deve10ped nations striveωachieve ever greater efficiencies，the need for more and more software ( )to increase. It would be a great shame if，in all that soware，there was no beauty.We know that soware can be uglWe know that it can be hard to use，unreliable ，and carelessly structured. We know that there are software systems whose tangled and careless intemal structures make them expensive and difficult to change. We know that there are soware systems that present their features through an awkward and cumbersome interface.We know that there are software systems that crash and misbehave. These are ( ) systems. Unfortunately ，as a profession ，soware developers tend to create more ugly systems than beautiful ones.There is a secret at the best sofuλrare developers know. Beauty is cheaper than ugliness. Beauty is faster than ugliness. A beautiful soware system can be built and maintained in less time，and for less money，than an ugly one. Novice soware developers don't understand is. They think that they have to do everything fast and quick.They think that beauty is ( ). No! By doing things fast and quick，they make messes that make the software stiff and hard to understand. Beautiful systems are flexible and easy to understand. Building them and maintaining them is a joy. It is ugliness that is impractical.Ugliness will slow you down and make your software expensive and brittle. Beautiful systems cost the least to build and maintain ，and are delivered soonest.
A、happens
B、Exists
C、stops
D、starts

答案:A
答题解析:

软件的优点在于其功能，内部结构以及由团队创建的方式。对于用户来说，通过直观和( )界面呈现的正确功能的程序是美丽的。对于软件设计师来说，分割的内部结构是一种简单而直观的方式，最小化内部耦合是美观的。对于开发人员和经理来说，一个积极的开发团队每周都取得重大进展，并且生产无缺陷的代码是美丽的。所有这些级别都有美丽。

我们的世界需要大量软件。五十年前，软件是在大多数公司和工业环境中运行的。现在软件存在在我们的手机，手表，电器，汽车，玩具和工具中。并且对新的和更好的软件的需求永远不会(请作答此空)。随着我们文明的发展和壮大，随着发展中国家建设基础设施，发达国家努力实现更高的效率，越来越多的软件需求( )增长。如果在所有的软件中没有美丽的话，这将是一个很大的耻辱。

我们知道软件可能是丑的。我们知道它可能很难使用，不可靠，粗心大意的结构。我们知道有一些软件系统的纠结和粗心的内部结构使得它们变得昂贵和难以改变。我们知道有一些软件系统通过尴尬和繁琐的界面来呈现其功能。我们知道有软件系统崩溃和行为不端。这些都是( )系统。不幸的是，作为一个专业，软件开发人员倾向于创建丑陋的系统比美丽的系统更多。

这是最好的软件开发者知道的秘密。美丽的比丑陋的更便宜。美丽的比丑陋的更快。一个美丽的软件系统相当于一个丑陋的系统来说，建立和维护要花的时间与金钱会少得多。很多新手软件开发人员不明白这一点。他们认为做每一个事情必须快速，更快速。他们认为美是( )。没有！通过快速，快速地做事情，他们使软件变得僵硬，难以理解。美观的系统灵活易懂。建立和维护他们是一种快乐。丑陋是不切实际的。丑陋会减慢你的速度，会使你的软件昂贵而脆弱。美观的系统成本最低，建立和维护成本最低，交货时间最短。

A happens（发生） B exists（存在） C stops（停止） D starts（开始）

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