馆档网 文档下载 文档下载导航
设为首页 | 加入收藏
搜索 请输入内容:  
 导航当前位置: 文档下载 > 所有分类 > 外语学习 > 英语学习 > SSD7全部QUIZ答案
侵权投诉

SSD7全部QUIZ答案

SSD7 卡耐基 QUIZ答案

Multiple-Choice Quiz 1

1. An E-Commerce system consists of the following components. Which of these same components must be included in a database? (c)

The data, such as information about the goods available for sale, customers, orders placed, shipping information, etc.

A database must include a collection of programs that control the data, such as programs to create, maintain, and manipulate the data. These programs can be easily used to create, maintain, and manipulate data in other domains.

A database must include a collection of programs that operate on the data, but are specific to the E-commerce system. These programs enable users to browse through the store-items, place orders, track shipping, etc.

(a) I, II, and III

(b) I and II only

(c) I only

(d) II only

2. An E-Commerce database contains data about customers, products, orders, system response times, etc. Which of the following can be specified as integrity constraints in an E-Commerce database system? (d)

No two products can have the same product ID.

The DBMS response time for all Web requests should be at most 2 seconds.

A customer order cannot have more than one shipping address.

(a) I only

(b) I, II, and III

(c) I and II only

(d) I and III only

Feedback: The constraints I, II and III specify the application semantics of the data captured in the E-Commerce database. Constraint III, although it seems contrary to common sense, is not something that can be prohibited by the DBMS because the DBMS is general purpose. The response time of the DBMS cannot be enforced by the DBMS. It depends on factors such the processor speed, memory available, etc.

3. An E-Commerce system consists of the following components. Which of these same components will constitute a database system? (d)

The data, such as information about the goods available for sale, customers, orders placed, shipping information, etc.

A collection of programs that control the data, such as programs to create, maintain, and manipulate the data constitutes a database system. These programs can be easily used to create, maintain, and manipulate data in other domains such as in a library information system.

A collection of programs that operate on the data, but are specific to the E-commerce system, constitutes a database system. These programs enable users to browse through the store-items, place orders, track shipping, etc.

(a) I and II only

第1页

热门文档

相关文档

  • SSD7全部QUIZ答案

    3页 免费 ssd4-所有quiz(选择题)答案... 31页 1财富值 quiz答案 3页 免费 Quiz 4 答案 2页 5财富值 quiz 3 答案 3页 5财富值喜欢此文档的还喜欢...

  • SSD7 Quiz 3

    SSD7全部QUIZ答案 5页 1财富值 SSD7全部QUIZ答案 19页 2财富值 ssd7 quiz2 4页 2财富值 quiz 3 20页 1财富值 quiz 3 3页 1财富值 quiz 3 答案 3...

  • ssd7 quiz2

    quiz2 9页 2财富值 quiz2 8页 2财富值 quiz2 3页 1财富值 ssd7答案 2页 免费 Quiz2答案 5页 免费 quiz2节选题目 暂无评价 11页 免费 SSD7 所有选择...

  • quiz答案

    Quiz 4 答案 2页 5财富值 quiz 3 答案 3页 5财富值 视听说第四册quiz答案 7页 2财富值 SSD7全部QUIZ答案 5页 1财富值 大学英语QUIZ答案 5页 1财富值...

  • iCarnegie教程 ssd7选择题

    SSD7数据库系统选择题答案 19页 2财富值 SSD7全部QUIZ答案 19页 2财富值 SSD7 所有选择题 40页 5财富值 SSD7选择题题库完美版 108页 1财富值 Excel使用...

  • QUIZ答案

    quiz答案 3页 免费 quiz答案 2页 免费 Quiz 4 答案 2页 5财富值 quiz 3 答案 3页 5财富值 视听说第四册quiz答案 7页 2财富值 SSD7全部QUIZ答案 5页 ...

  • ssd7 execise3-queries

    SSD7 所有选择题 40页 2下载券 SSD7-Unit1 66页 7下载券 喜欢此文档的还喜欢 SSD7全部QUIZ答案 19页 1下载券 SSD7全部QUIZ答案 5页 1下载券 ssd7 ...

  • ssd7答案

    SSD7 所有选择题 40页 2下载券喜欢此文档的还喜欢 ssd7练习中文 35页 免费 SSD7全部QUIZ答案 19页 1下载券 SSD7选择题题库完美版 108页 1下载券 ssd3 ...

  • ssd7 Skill Builder 1答案

    SSD7全部QUIZ答案 19页 2财富值 Database System3 43页 2财富值 SSD7(系统级编程)试题2008... 4页 免费 SSD7半期试题-参考 6页 5财富值 ssd7 quiz2 ...

站点地图 | 文档上传 | 侵权投诉 | 手机版
新浪认证  诚信网站  绿色网站  可信网站   非经营性网站备案
本站所有资源均来自互联网,本站只负责收集和整理,均不承担任何法律责任,如有侵权等其它行为请联系我们.
文档下载 Copyright 2013 doc.guandang.net All Rights Reserved.  email
返回顶部