Insy 3304 Chapter 1

1. Data and information are essentially the same thing. 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

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. 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

17. 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

ANSWER: False

19. An advantage of database systems is that you needn't perform frequent updates and apply latest patches. a. True b. False

ANSWER: False

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

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

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

ANSWER: False

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

18. One disadvantage of a database system over previous data management approaches is increased costs. a. True b. False

ANSWER: True

2. Data processing can be as simple as organizing data to reveal patterns. a. True b. False

ANSWER: True

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

26. _____ serve as the intermediary between the user and the database. a. DBMSs b. Metadata c. End-user data d. Programming languages

a. DBMSs

29. _____ exists when different versions of the same data appear in different places. a. Data inconsistency b. Poor data security c. Structural dependence d. Conceptual dependence

a. Data inconsistency

48. _____ is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions. a. Data integrity b. Data anomaly c. Data ubiquity d. Data quality

a. Data integrity

50. _____ relates to the activities that make the database execute transactions more efficiently in terms of storage and access speed. a. Performance tuning b. Database design c. Query access d. Database management

a. Performance tuning

38. _____ are the result of formatting disorganized data in order to facilitate storage, use and generation of information. a. Structured data b. Raw data c. Unstructured data d. Obsolete data

a. Structured data

35. Data warehouse contains historical data obtained from the _____. a. operational databases b. desktop database c. enterprise databases d. workgroup databases

a. operational databases

34. A desktop database is a _____ database. a. single-user b. multiuser c. workgroup d. distributed

a. single-user

47. Data is said to be verifiable if: a. the data always yields consistent results. b. the data cannot be changed or manipulated. c. the data is obtained from trusted sources. d. the data is stored in different places within the database.

a. the data always yields consistent results.

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

b. collection of files

44. A _____ is a character or group of characters that has a specific meaning. a. database b. field c. record d. file

b. field

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

b. good decision making

41. The organization of data within folders in a manual file system is determined by _______. a. its date of creation b. its expected use c. the title of the documents in the folder d. the data processing specialist

b. its expected use

33. A workgroup database is a(n) _____ database. a. single-user b. multiuser c. desktop d. distributed

b. multiuser

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

b. raw facts of interest to the end user

39. Most data that can be encountered are best classified as _____. a. structured b. semistructured c. unstructured d. historical

b. semistructured

32. A(n) _____ database supports a relatively small number of users (usually fewer than 50) or a specific department within an organization. a. desktop b. workgroup c. enterprise d. transactional

b. workgroup

22. _____ is the body of information and facts about a specific subject. a. Validation b. A format c. Knowledge d. A database

c. Knowledge

25. _____ provide a description of the data characteristics and the set of relationships that link the data found within the database. a. Queries b. End-user data c. Metadata d. Schemas

c. Metadata

36. _____ data exist in the format in which they were collected. a. Structured b. Semistructured c. Unstructured d. Historical

c. Unstructured

37. _____ data exist in a format that does not lend itself to processing that yields information. a. Structured b. Semistructured c. Unstructured d. Historical

c. Unstructured

31. A(n) _____ database is used by an organization and supports many users across many departments. a. desktop b. workgroup c. enterprise d. transactional

c. enterprise

30. The response of the DBMS to a query is the ___________ a. ad hoc query b. ad hoc response c. query result set d. integrated view of the data

c. query result set

42. A _____ is a logically connected set of one or more fields that describes a person, place, or thing. a. database b. column c. record d. file

c. record

46. Which of the following refers to the situation where different versions of the same data are stored at different places because they weren't updated consistently? a. Data query b. Data integrity c. Data dictionary d. Data redundancy

d. Data redundancy

51. _______ refers to a type of database that stores most of its data in RAM rather than in hard disks. a. Integrated databases b. Cloud databases c. Desktop databases d. In-memory databases

d. In-memory databases

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

d. Information

45. Which of the following is true of spreadsheet applications? a. They provide enhanced security and robust data sharing features. b. They do not allow manipulation of data once entered. c. They are a better alternative to databases. d. They enhance the user's ability to understand the data.

d. They enhance the user's ability to understand the data.

28. A(n) _____ might be written by a programmer or it might be created through a DBMS utility program. a. query b. operating system c. database management system d. application

d. application

49. The term _____ refers to an organization of components that define and regulate the collection, storage, management and use of data within a database environment. a. structured data b. transaction c. management system d. database system

d. database system

43. A _____ is a collection of related records. a. schema b. field c. column d. file

d. file

40. An XML database supports the storage and management of _____ XML data. a. structured b. multistructured c. fullystructured d. semistructured

d. semistructured