,CHAPTER 1: DATABASE SYSTEMS
1. Data and information are essentially the same thing.
a. True
b. False
ANSWER: False
2. Data processing can be as simple as organizing data to reveal patterns.
a. True
b. False
ANSWER: True
3. Data is the result of processing raw facts to reveal its meaning.
a. True
b. False
ANSWER: False
4. When data are entered into a form and saved, they are placed in the underlying database as knowledge.
a. True
b. False
ANSWER: False
5. Data constitute the building blocks of information.
a. True
b. False
ANSWER: True
6. Metadata describe the data characteristics and the set of relationships that links the data found within the
database.
a. True
b. False
ANSWER: True
7. The only way to access the data in a database is through the DBMS.
a. True
b. False
ANSWER: True
8. Database programming languages receive all application requests and translate them into the complex
operations required to fulfill those requests.
a. True
b. False
,Chapter 1: Database Systems
9. The DBMS reveals much of the database’s internal complexity to the application programs and users.
a. True
b. False
ANSWER: False
10. One disadvantage of the DBMS is that it increases the risk of data security breaches.
a. True
b. False
ANSWER: False
11. An operational database is sometimes referred to as an enterprise database.
a. True
b. False
ANSWER: False
12. A data warehouse can store data derived from many sources.
a. True
b. False
ANSWER: True
13. The same data might be simultaneously structured and unstructured depending on the intended processing.
a. True
b. False
ANSWER: True
14. Corporations use only structured data.
a. True
b. False
ANSWER: False
15. Field refers to a collection of related records.
a. True
b. False
ANSWER: False
16. Data anomaly is defined as the condition in which all of the data in the database are consistent with the real-
world events and conditions.
a. True
b. False
, Chapter 1: Database Systems
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.
a. True
b. False
ANSWER: False
18. An advantage of database systems is that you needn’t perform frequent updates and apply latest patches.
a. True
b. False
ANSWER: False
19. One disadvantage of a database system over previous data management approaches is increased costs.
a. True
b. False
ANSWER: True
20. One advantage of a database system over previous data management approaches is that the database system is
considerably less complex.
a. True
b. False
ANSWER: False
21. is the result of revealing the meaning of raw facts.
a. End-user data b. An encoded sample
c. An encrypted bit d. Information
ANSWER: d
22. is the body of information and facts about a specific subject.
a. Validation b. A format
c. Knowledge d. A database
ANSWER: c
23. Accurate, relevant, and timely information is the key to .
a. data management b. good decision making
c. knowledge d. understanding
ANSWER: b
24. End-user data is .
a. knowledge about the end users b. raw facts of interest to the end user
c. information about a specific subject d. accurate, relevant and timely information
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