Information Systems Essentials International Edition 6th Edition by George – Test Bank

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Information Systems Essentials International Edition 6th Edition by George Walter Reynolds – Test Bank

Chapter 03: Database Systems, Data Centers, and Business Intelligence

TRUE/FALSE

1. In some cases, multiple organizations collaborate in creating and using international databases.

ANS: T PTS: 1

2. A database provides one of many points of management and control over data resources.

ANS: F PTS: 1

3. An attribute is a general class of people, places, or things for which data is collected, stored, and maintained.

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4. A collection of fields about a specific object is a record.

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5. Today, most organizations use the database approach to data management, where multiple information systems share a pool of related data.

ANS: T PTS: 1 OBJ: 119

6. A database need not reflect the business processes of the organization.

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7. Due to their size, databases must be stored on mainframe computers or other large, powerful computers.

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8. Data centers are approaching the point of automation, where they can run and manage themselves while being monitored remotely in a “lights out” environment.

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9. Business and technology vendors are working to develop blue data centers that run more efficiently and require less energy for processing and cooling.

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10. Identification of who will have access to a database has little impact on organizing a database.

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11. Carrying summary totals in the data records is an example of planned data redundancy.

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12. Entity-relationships diagrams are a useful database design tool.

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13. The relational model describes data using a standard tabular format; all data elements are placed in three-dimensional tables called relations, which are the logical equivalent of files.

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14. Oracle is currently the market leader in general-purpose databases, with about three-fourths of the multibillion-dollar database market.

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15.In the relational model, each row of a table represents a data entity or row and each column of the table represents an attribute or field.

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16. The domain for pay rate would include both positive and negative numbers.

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17. Projecting involves eliminating columns in a table.

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