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CSE :: Database System 2 - CS

  1. Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.

  2. A.

     True

    B.

     False


  3. A collection of literals or object types is called a bag.

  4. A.

     True

    B.

     False


  5. An attribute's value is either a literal or an object identifier.

  6. A.

     True

    B.

     False


  7. Database objects are almost always transient.

  8. A.

     True

    B.

     False


  9. An attribute's value is always literal.

  10. A.

     True

    B.

     False


  11. Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s).

  12. A.

     True

    B.

     False


  13. If you know all the possible values that an attribute can have, you can enumerate those values in ODL.

  14. A.

     True

    B.

     False


  15. You may specify an object identifier with only one unique tag name.

  16. A.

     True

    B.

     False


  17. In ODL, you specify an operation using parentheses after its name.

  18. A.

     True

    B.

     False


  19. An ordered collection of elements of the same type are called sets.

  20. A.

     True

    B.

     False