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Test Bank For Database Principles Fundamentals of Design Implementation and Management International Edition 10th Edition by Carlos Coronel €29,95   In winkelwagen

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Test Bank For Database Principles Fundamentals of Design Implementation and Management International Edition 10th Edition by Carlos Coronel

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Chapter 3: Data Models TRUE/FALSE 1. A data model is usually graphical. ANS: T PTS: 1 2. The terms data model and database model are often used interchangeably. ANS: T PTS: 1 3. An implementation-ready data model should contain a description of the data structure that will store the end-user d...

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,Chapter 1: The Database Approach



TRUE/FALSE

1. Data and information are essentially the same thing.

ANS: F PTS: 1

2. Data processing can be as simple as organizing data to reveal patterns.

ANS: T PTS: 1

3. We are now said to be entering the “knowledge age.”

ANS: T PTS: 1

4. Information implies familiarity, awareness, and understanding knowledge as it applies to an
environment.

ANS: F PTS: 1

5. Data constitute the building blocks of information.

ANS: T PTS: 1

6. Metadata present a more complete picture of the data in the database than the data itself.

ANS: T PTS: 1

7. The only way to access the data in a database is through the DBMS.

ANS: T PTS: 1

8. Database programming languages receive all application requests and translate them into the complex
operations required to fulfill those requests.

ANS: F PTS: 1

9. The DBMS reveals much of the database’s internal complexity to the application programs and users.

ANS: F PTS: 1

10. One disadvantage of the DBMS is that it increases the risk of data security breaches.


© 2013 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different from the
U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.

, ANS: F PTS: 1

11. An operational database is sometimes referred to as an enterprise database.

ANS: F PTS: 1

12. A data warehouse can store data derived from many sources.

ANS: T PTS: 1

13. The same data might be simultaneously structured and unstructured depending on the intended
processing.

ANS: T PTS: 1

14. Corporations use only structured data.

ANS: F PTS: 1

15. Historically, a manual file system was composed of a system of file folders and filing cabinets.

ANS: T PTS: 1

16. Initially the files within a computer file system were similar to manual files.

ANS: T PTS: 1

17. Structural dependence exists when it is possible to make changes in the file structure without affecting
the application program’s ability to access the data.

ANS: F PTS: 1

18. A query language is a procedural language.

ANS: F PTS: 1

19. One disadvantage of a database system over previous data management approaches is increased costs.

ANS: T PTS: 1

20. One advantage of a database system over previous data management approaches is that the database
system is considerably less complex.

ANS: F PTS: 1


© 2013 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different from the
U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.

, MULTIPLE CHOICE

1. ____ is used to reveal the meaning of data.
a. Raw facts c. Formatting
b. Knowledge d. Information

ANS: D PTS: 1

2. Accurate, relevant, and timely information is the key to ____.
a. data management c. knowledge
b. good decision making d. understanding

ANS: B PTS: 1

3. ____ is the body of information and facts about a specific subject.
a. Data c. Knowledge
b. Information d. A database

ANS: C PTS: 1

4. End-user data is ____.
a. raw facts about the end-user
b. raw facts of interest to the end-user
c. data about data
d. accurate, relevant and timely information

ANS: B PTS: 1

5. ____ provide(s) a description of the data characteristics and the set of relationships that link the data
found within the database.
a. Queries c. Metadata
b. End-user data d. Information

ANS: C PTS: 1

6. The ____ serve(s) as the intermediary between the user and the database.
a. DBMS c. end-user data
b. metadata d. programming language

ANS: A PTS: 1

7. The database structure in a DBMS is stored as a ____.
a. file c. set of key/value pairs
b. collection of files d. collection of queries

ANS: B PTS: 1
© 2013 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different from the
U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.

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