The Database Environment problems
- 1. An enterprise data model is:
Options- A. a graphical model that shows the high-level entities for an organization.
- B. a graphical model that shows all entities for an organization.
- C. a non-graphical model that shows the high-level entities for an organization.
- D. a non-graphical model that shows the all entities for an organization. Discuss
Correct Answer: a graphical model that shows the high-level entities for an organization.
- 2. An enterprise database is which of the following?
Options- A. A database designed to support only users external to an organization
- B. A database designed to support an entire organization
- C. A database designed to support a relatively small group
- D. A database designed to support a single PC Discuss
Correct Answer: A database designed to support an entire organization
- 3. Data administrators are responsible for:
Options- A. physical database design.
- B. managing technical issues in the database environment.
- C. overall management of data resources in an organization.
- D. writing application programs. Discuss
Correct Answer: overall management of data resources in an organization.
- 4. A shared database should:
Options- A. be accurate and available.
- B. provide for backup and recovery.
- C. be secure.
- D. All of the above. Discuss
Correct Answer: All of the above.
- 5. A data warehouse uses:
Options- A. partial operational data.
- B. historical operational data.
- C. future operational data.
- D. health care data. Discuss
Correct Answer: historical operational data.
- 6. Legacy data is which of the following?
Options- A. Data contained in a newly-installed system
- B. Data rejected during the installation of a new system
- C. Data contained in a file system
- D. Data contained by a system used prior to the installation of a new system Discuss
Correct Answer: Data contained by a system used prior to the installation of a new system
- 7. Structured data may include which of the following?
Options- A. Photo image
- B. Video clip
- C. Dates
- D. None of the above. Discuss
Correct Answer: Dates
- 8. An extranet is which of the following?
Options- A. The use of Internet protocols with limited access to company data by the company's customers and suppliers.
- B. The use of Internet protocols with unlimited access to company data by the company's customers and suppliers.
- C. The use of Internet protocols with limited access to company data by people within an organization.
- D. The use of Internet protocols with unlimited access to company data by people within an organization. Discuss
Correct Answer: The use of Internet protocols with limited access to company data by the company's customers and suppliers.
- 9. Some advantages of the database approach include all, but:
Options- A. minimal data redundancy.
- B. improved data consistency.
- C. improved data sharing.
- D. program-data dependency. Discuss
Correct Answer: program-data dependency.
- 10. Duplicate data often results in loss of data integrity because:
Options- A. the data formats may be inconsistent.
- B. data values may not agree.
- C. Both A & B.
- D. Neither A & B. Discuss
Correct Answer: Both A & B.
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