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CSE :: Database System 2 - CS

  1. A relationship is an association representing the interaction between attributes.

  2. A.

     True

    B.

     False

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  3. A binary relationship is a relationship between two or more entities.

  4. A.

     True

    B.

     False

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  5. Some business rules cannot be represented in common data modeling notation.

  6. A.

     True

    B.

     False

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  7. A time stamp is a time value that is associated with a data value.

  8. A.

     True

    B.

     False

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  9. A logical representation of the data for an organization or for a business area is known as an entity-relationship model.

  10. A.

     True

    B.

     False

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  11. A derived attribute is an attribute whose values can be calculated from a related relationship.

  12. A.

     True

    B.

     False

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  13. A fact is a word or phrase that has a specific meaning for the business.

  14. A.

     True

    B.

     False

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  15. A strong entity is an entity whose existence depends on some other entity type.

  16. A.

     True

    B.

     False

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  17. Multiple and binary relationships are the same thing.

  18. A.

     True

    B.

     False

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  19. No two attributes of the same entity type should have the same name.

  20. A.

     True

    B.

     False

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