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Chapter 10
True/False
Darken the letter on a Scantron that indicates whether the sentence or statement is true or false.
1. When employees are more productive, customers usually are less satisfied.
2. Two different people may need the same information presented in a different manner.
3. It always is easy to place a value on information.
4. Each higher level of data consists of one or more items from the lower level.
5. The data in a key field is common to all records.
6. Databases require less memory, storage, and processing power than file processing systems.
7. To meet the needs of a wide variety of database users, a DBMS offers only one method to retrieve and
maintain data.
8. To reduce data entry errors, well-designed forms should validate data as it is entered.
9. Access privileges for data involve establishing who can enter new data, change existing data, delete unwanted
data, and view data.
10. In a relational database, the only data redundancy (duplication) exists in the common columns (fields) used
for relationships.
11. Few personal computer databases include SQL.
12. A record in a relational database would contain instructions on how to print the record.
13. One application that uses multidimensional databases is a data warehouse.
14. Writing a CGI script requires computer programming skills.
15. The database analysts and administrators are responsible for managing and coordinating all database
activities.
Multiple Choice
Darken the letter on a Scantron of the choice that best completes the statement or answers the question.
16. Organized information ____.
a. is error free
b. is arranged to suit the needs and requirements of a decision maker
c. can be proven as correct or incorrect
d. has an age suited to its use
17. Generally, users change records in a file ____.
a. when they obtain new data or to correct inaccurate data
b. to correct inaccurate data or to update old data with new data
c. to update old data with new data or when a record no longer is needed
d. when a record no longer is needed or when they obtain new data
18. Although a query language can be used for other purposes, most users only ____ data with a query language.
a. retrieve
c. change
b. add
d. delete
19. To ensure privacy, members would have ____ privileges to the data in a fitness club database.
a. read-only
c. full-update
b. write-only
d. no access
20. A user of a relational database, refers to a field as a ____.
a. table
c. row
b. column
d. relationship
21. Compared with relational databases, object-oriented databases ____.
a. can store more types of data
c. allow programmers to reuse objects
b. access data faster
d. all of the above
22. Many e-commerce sites use ____ to determine customer preferences.
a. data checking
c. data sorting
b. data mining
d. data serving
23. The DA does all of the following except ____.
a. decide on the proper placement of fields
b. define the relationships among data
c. identify users’ access privileges
d. create and maintain the data dictionary
24. The DBA does all of the following except ____.
a. manage security of the database
b. monitor the performance of the database
c. check backup and recovery procedures
d. decide on the proper placement of fields
25. A user of a relational database, refers to a record as a ____.
a. table
c. row
b. column
d. relationship
Chapter 10
Answer Section
TRUE/FALSE
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Secondary
Secondary
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Secondary
Primary
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Primary
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Primary
Primary
Primary
Primary
Secondary
Primary
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10.03
10.04
10.04
10.05
10.06
10.13
10.16
10.17
10.19
10.21
10.22
10.22
10.24
10.25
10.27
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Secondary
Secondary
Primary
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Primary
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Secondary
Primary
Primary
Primary
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10.04
10.09
10.16
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10.21
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MULTIPLE CHOICE
16.
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25.
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B
B
A
D
B
D
B
D
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C