61. | An entity type is which of the following? |
a. | A major category of data about people, place, and things |
b. | The various departments of an organization |
c. | The application software |
d. | The business processes the support the mission of an organization |
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Answer: (a).A major category of data about people, place, and things
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62. | The first step in database development is which of the following? |
a. | Enterprise data modeling |
b. | Logical database design |
c. | Physical database design and definition |
d. | Database Implementation |
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Answer: (a).Enterprise data modeling
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63. | Strategic Planning factors do not include which of the following? |
a. | Organizational goals |
b. | Critical success factors |
c. | Information engineering |
d. | Problem areas |
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Answer: (c).Information engineering
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64. | The use of packaged data models can offer which of the following benefits? |
a. | Reduce implementation time and costs |
b. | Higher quality models |
c. | Both A and B. |
d. | Neither A nor B. |
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Answer: (c).Both A and B.
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65. | Whose role is it to determine the requirements and design for a database? |
a. | Database analysts |
b. | Database administrators |
c. | Both A and B. |
d. | Neither A or B. |
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Answer: (a).Database analysts
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66. | User views are included as part of which schema? |
a. | Internal |
b. | Conceptual |
c. | External |
d. | None of the above. |
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Answer: (c).External
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67. | The Enterprise tier of the three-tiered database architecture includes: |
a. | managing the data. |
b. | managing the User-system interface. |
c. | processing HTTP protocol. |
d. | processing scripting tasks. |
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Answer: (a).managing the data.
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68. | Which of the following statement is true concerning objects and/or classes? |
a. | An object is an instance of a class. |
b. | A class is an instance of an object. |
c. | An object includes encapsulates only data. |
d. | A class includes encapsulates only data. |
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Answer: (a).An object is an instance of a class.
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69. | A UML diagram includes which of the following? |
a. | Class name |
b. | List of attributes |
c. | List of operations |
d. | All of the above. |
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Answer: (d).All of the above.
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70. | A constructor operation does which of the following? |
a. | Creates a new instance of a class |
b. | Updates an existing instance of a class |
c. | Deletes and existing instance of a class |
d. | All of the above. |
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Answer: (a).Creates a new instance of a class
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