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CSE :: Database System 2 - CS

  1. A data warehouse uses:

  2. A.

     partial operational data.

    B.

     historical operational data.

    C.

     future operational data.

    D.

     health care data.

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  3. Metadata enables database designers and users to do all of the following except:

  4. A.

     sample data.

    B.

     understand what data exist.

    C.

     what the fine distinctions are between similar data items.

    D.

     what the data mean.

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  5. Duplicate data often results in loss of data integrity because:

  6. A.

     the data formats may be inconsistent.

    B.

     data values may not agree.

    C.

     Both A & B.

    D.

     Neither A & B.

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  7. Legacy data is which of the following?

  8. 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

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  9. A database management system (DBMS) is a:

  10. A.

     hardware system used to create, maintain, and provide controlled access to a database.

    B.

     hardware system used to create, maintain, and provide uncontrolled access to a database.

    C.

     software system used to create, maintain, and provide controlled access to a database.

    D.

     software system used to create, maintain, and provide uncontrolled access to a database.

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  11. A database application can perform which of the following activities?

  12. A.

     Add records

    B.

     Read records

    C.

     Update records

    D.

     All of the above.

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  13. An enterprise data model is:

  14. 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.

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  15. A shared database should:

  16. A.

     be accurate and available.

    B.

     provide for backup and recovery.

    C.

     be secure.

    D.

     All of the above.

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  17. Data administrators are responsible for:

  18. 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.

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  19. Which of the following types of databases are the most common?

  20. A.

     Personal

    B.

     Workgroup

    C.

     Department

    D.

     Enterprise

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