1. Multiple choice question (5 points)
( B ) is a collection of structured data stored in the computer.
(A) database system
(B) database
(C) database management system
(D) data structure
2. Multiple-choice questions (5 points)
One of the characteristics of the database is data sharing. Strictly speaking, data sharing here refers to ( D ).
(A) Multiple programs in the same application share one data set
(B) Multiple users share data in the same language
(C) Multiple users share one data file
(D) Multiple applications, multiple languages, multiple users overlap with each other using the data set
3. Multiple choice question (5 points)
database management system is ( D ).
(A) Mathematics software
(B) Application software
(C) Computer-aided design software
(D) System software
4. Multiple choice questions (5 points)
The database management system can realize the query, insertion, modification and deletion of data in the database. This kind of function is called ( C ).
(A) Data definition function
(B) Data management function
(C) Data manipulation function
(C) Data control function
5. Multiple choice question (5 points)
Among the three stages of data management technology development listed below, the one that does not have special software to manage data is ( D ).
I. Manual Management Phase II. File System Phase III. Database Phase
(A) I and l
(B) II only
(C) l and III
(D) I only
6. Multiple choice question (5 points)
The following wrong statement about the database is ( B ).
(A) The data management method of the file system solves the problem of physical independence of data
(B) The data management method of the file system solves the problem of data sharing and data redundancy
(C) The data management method of the database system solves the logical independence of data
(D) The data management method of the database system solves the problem of data integrity control
7. Multiple choice questions (5 points)
Data management technology has gone through three stages: manual management, file system and ( C ) system.
(A) Network
(B) Modularity
(C) Database
(D) Hierarchy
8. Multiple choice question (5 points)
Regarding the information, the following statement is correct ( A ).
(A) Information = Data + Semantics
(B) Information = Data
(C) Information = Data - Semantics
(D) Information = Semantics
9. Multiple choice question (5 points)
Which of the following statements about the database is correct ( B )
(A) There are only connections between data items in the database
(B) There are connections between data items and records in the database
( C) There is no connection between data items in the database, but there is a connection between records
(D) There is no connection between data items in the database and between records
10. Multiple choice questions (8 points)
The basic characteristics of the database system include ( ABC ).
(A) High data sharing and low redundancy
(B) High data independence
(C) Data structure
(D) Data design for a specific application
11. Multiple choice questions (8 points)
In the development process of data management technology, it has gone through the ( ABD ) stage.
(A) manual management
(B) file system
(C) file management
(D) database system
12. Multiple choice questions (8 points)
Scholars who have won the Turing Award in the database industry include ( ABCD )
(A) Charles W Bachman
(B) Edgar F Codd
(C) James Gray
(D) Michael Stonebraker
13. Multiple choice question (8 points)
In the following description about the database, which one is incorrect is ( ABC ).
(A) The database manages data through the file system
(B) The database avoids the duplication of all data
(C) The connection between data is constructed through the program
(D) The database reduces data redundancy
14. True or false (5 points)
Data redundancy may cause problems such as waste of storage space, complex modification and potential data inconsistency. ()
Correct answer: correct
15. True or false (6 points)
The meaning of data is called the semantics of data, and data and its semantics are inseparable. ()
Correct answer: correct
16. True or false (6 points)
One of the characteristics of the database system is data structure, which is one of the main characteristics of the database and the essential difference between the database system and the file system. ()
Correct answer: correct
17. True or false (6 points)
One of the characteristics of the database system is its high data sharing, no redundancy and easy expansion. ()
Correct answer: wrong