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CSE :: Database Systems

  1. Sort/report generators

  2. A.
    are faster than index/report generators
    B.
    require more disk space than index/report generators
    C.
    do not need to sort before generating a report
    D.
    both (a) and (b)
    E.
    None of the above

  3. The data dictionary tells the DBMS

  4. A.
    what files are in the database
    B.
    what attribute are possessed by the data
    C.
    what these files contain
    D.
    All of the above
    E.
    None of the above

  5. In SQL, which command(s) is(are) used to enable/disable a database trigger?

  6. A.
    MODIFY USER
    B.
    CHANGE USER
    C.
    ALTER TRIGGER
    D.
    All of the above
    E.
    None of the above

  7. If the record management system allows you to edit values before they are recorded on disk, you can

  8. A.
    correct spelling changes before they are recorded
    B.
    change the name of a field
    C.
    change the width of a field
    D.
    All of the above
    E.
    None of the above

  9. The relational model uses some unfamiliar terminology. A tuple is equivalent to a:

  10. A.
    record
    B.
    field
    C.
    file
    D.
    data base
    E.
    data item

  11. The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?

  12. A.
    Bits
    B.
    Characters
    C.
    Data field
    D.
    Schema
    E.
    None of the above

  13. Which command is used to remove an index from the database in SQL?

  14. A.
    DELETE INDEX
    B.
    DROP INDEX
    C.
    REMOVE INDEX
    D.
    ROLL BACK INDEX
    E.
    None of the above

  15. An-owner-member set in the CODASYL specifications may have

  16. A.
    only one owner but many owner occurrences
    B.
    only one member but many member occurrence
    C.
    more than one member but only one occurrence per member
    D.
    All of the above
    E.
    None of the above

  17. What is the name given to the database management system which is able to handle full text data, image data, audio and video?

  18. A.
    Full media
    B.
    Graphics media
    C.
    Multimedia
    D.
    Hypertext
    E.
    None of the above

  19. A top-to-bottom relationship among the items in a database is established by a

  20. A.
    Hierarchical schema
    B.
    Network schema
    C.
    Relational schema
    D.
    All of the above
    E.
    None of the above