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Chapter 2 (Multiple Choice) CIS 3365

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Resource summary

Question 1

Question
21. A(n) _________’s main function is to help one understand the complexities of the real­world environment.
Answer
  • A. node
  • b. entity
  • c. model
  • d. database

Question 2

Question
22. A(n) ____________ represents a particular type of object in the real world.
Answer
  • a. attribute
  • b. entity
  • c. relationship
  • d. node

Question 3

Question
23. A(n) __________ is anything about which data are to be collected and stored.
Answer
  • a. attribute
  • b. entity
  • c. relationship
  • d. constraint

Question 4

Question
24. A(n) ___________ is the equivalent of a field in a file system.
Answer
  • a. attribute
  • b. entity
  • c. relationship
  • d. constraint

Question 5

Question
25. A(n) _________ is bidirectional.
Answer
  • a. attribute
  • b. entity
  • c. relationship
  • d. constraint

Question 6

Question
26. A(n) _________ is a restriction placed on the data.
Answer
  • a. attribute
  • b. entity
  • c. relationship
  • d. constraint

Question 7

Question
27. ________ are important because they help to ensure data integrity.
Answer
  • a. Attributes
  • b. Entities
  • c. Relationships
  • d. Constraints

Question 8

Question
28. ________ are normally expressed in the form of rules.
Answer
  • a. Attribtues
  • b. Entities
  • c. Relationships
  • d. Constraints

Question 9

Question
29. Students and classes have a ____________ relationship.
Answer
  • a. one-to-one
  • b. one-to-many
  • c. many-to-one
  • d. many-to-many

Question 10

Question
Business rules are derived from ____.
Answer
  • a.a detailed description of an organization’s operations
  • b.standards and practices developed over the years
  • c.managers’ recommendations
  • d.governmental oversight organization standards

Question 11

Question
31. Which of the following is true of business rules?
Answer
  • a. They allow the designer to set company policies with regard to data.
  • b. They allow the designer to develop business processes.
  • c. They can serve as a communication tool between the users and designers.
  • d. They provide a framework for the company’s self-actualization.

Question 12

Question
32. A noun in a business rule translates to a(n) __________ in the data model.
Answer
  • a. entity
  • b. attribute
  • c. relationship
  • d. constraint

Question 13

Question
33. A verb associating two nouns in a business rule translates to a(n) __________ in the data model.
Answer
  • a. entity
  • b. attribute
  • c. relationship
  • d. constraint

Question 14

Question
34. The hierarchical data model was developed in the __________.
Answer
  • a. 1960s
  • b. 1970s
  • c. 1980s
  • d. 1990s

Question 15

Question
35. The object-oriented data model was developed in the ____________.
Answer
  • a. 1960s
  • b. 1970s
  • c. 1980s
  • d. 1990s

Question 16

Question
36. VMS/VSAM is an example of the ___________.
Answer
  • a. hierarchical model
  • b. file system data model
  • c. relational data model
  • d. XML data model

Question 17

Question
37. Oracle 11g is an example of the ___________.
Answer
  • a. hierarchical model
  • b. file system data model
  • c. relational data model
  • d. XML/Hybrid data model

Question 18

Question
38. MySQL is an example of the ________.
Answer
  • a. hierarchical model
  • b. file system data model
  • c. relational data model
  • d. XML data model

Question 19

Question
39. In the ________ model, the basic logical structure is represented as an upside-down tree.
Answer
  • a. hierarchical
  • b. network
  • c. relational
  • d. entity relationship

Question 20

Question
40. In the __________ model, each parent can have many children, but each child has only one parent.
Answer
  • a. hierarchical
  • b. network
  • c. relational
  • d. entity relationship

Question 21

Question
41. The relational data model was developed in the _________.
Answer
  • a. 1960s
  • b. 1970s
  • c. 1980s
  • d. 1990s

Question 22

Question
42. In the _______ model, the user perceives the database as a collection of records in 1:M relationships, where each record can have more than one parent.
Answer
  • a. hierarchical
  • b. network
  • c. object-orientated
  • d. entity relationship

Question 23

Question
44. A(n) ________ enables a database administrator to describe schema components.
Answer
  • a. extensible markup language (XML)
  • b. data definition language (DDL)
  • c. unified modeling language (UML)
  • d. query langauge

Question 24

Question
24.The ____ model was developed to allow designers to use a graphical tool to examine structures rather than describing them with text.
Answer
  • a. hierarchial
  • b. network
  • c. object-oriented
  • d. entity relationship

Question 25

Question
49. The ________ model uses the term connectivity to label the relationship types.
Answer
  • a. relational
  • b. network
  • c. object-oriented
  • d. entity relationship

Question 26

Question
51. The _________ data model is said to be a semantic data model.
Answer
  • a. relational
  • b. network
  • c. object-oriented
  • d. entity relationship

Question 27

Question
52. The ________ data model uses the concept of inheritance.
Answer
  • a. relational
  • b. network
  • c. object-oriented
  • d. entity relationship

Question 28

Question
53. One of the limitations of the ________ model is that there is a lack of standards.
Answer
  • a. hierarchical
  • b. network
  • c. relational
  • d. entity relationship

Question 29

Question
54. The ________ model is the end users’ view of the data environment.
Answer
  • a. abstract
  • b. external
  • c. conceptual
  • d. internal

Question 30

Question
30.A(n) ____ model represents a global view of the database as viewed by the entire organization.
Answer
  • a. external
  • b. conceptual
  • c. internal
  • d. physical
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