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1

单选(2分)

（  ）是存储在计算机内有结构的数据的集合。

得分/总分

A.

数据库系统

B.

数据库

2.00/2.00

C.

数据库管理系统

D.

数据结构

正确答案：B你选对了

解析：  D、知识点：数据库的4个基本概念

2

单选(2分)

数据库的特点之一是数据的共享，严格的讲，这里的数据共享是指（  ）。

得分/总分

A.

同一个应用中的多个程序共享一个数据集合

B.

多个用户、同一种语言共享数据

C.

多个用户共享一个数据文件

D.

多种应用、多种语言、多个用户互相覆盖地使用数据集合

2.00/2.00

正确答案：D你选对了

3

单选(2分)

要保证数据库的数据独立性，需要修改的是（  ）。

得分/总分

A.

模式与外模式

B.

模式与内模式

C.

三级模式之间的两层映射

2.00/2.00

D.

三层模式

正确答案：C你选对了

解析：  D、知识点：数据库系统的结构

4

单选(2分)

数据库（DB），数据库系统（DBS）和数据库管理系统（DBMS）之间的关系是（  ）。

得分/总分

A.

DBS包括DB和DBMS

2.00/2.00

B.

DBMS包括DB和DBS

C.

DB包括DBS和DBMS

D.

DBS就是DB，也就是DBMS

正确答案：A你选对了

解析：  D、知识点：数据库系统的组成

5

多选(2分)

数据库系统的基本特点包括（  ）。

得分/总分

A.

数据共享性高、冗余度低

0.67/2.00

B.

数据独立性高

0.67/2.00

C.

数据结构化

0.67/2.00

D.

数据设计面向某个具体的应用

正确答案：A、B、C你选对了

解析：  D、知识点：数据库的4个基本概念

6

多选(2分)

在数据管理技术的发展过程中，经历了（  ）阶段。

得分/总分

A.

人工管理

0.67/2.00

B.

文件系统

0.67/2.00

C.

档案管理

D.

数据库系统

0.67/2.00

正确答案：A、B、D你选对了

7

判断(2分)

数据冗余可能导致的问题有浪费存储空间、修改复杂和潜在的数据不一致性。（  ）

得分/总分

A.

2.00/2.00

B.

正确答案：A你选对了

解析：知识点：数据库的4个基本概念

8

判断(2分)

数据库管理员是开发数据库的专门人员。（  ）

得分/总分

A.

B.

2.00/2.00

正确答案：B你选对了

解析：知识点：数据库系统的组成

解析：数据库管理员应是管理数据库的专门人员

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