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Thread: cs614 1st Quize 17 nov-2011

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    18 cs614 1st Quize 17 nov-2011

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    Quiz Start Time: 10:55 AM Time Left 89
    sec(s)


    Question # 1 of 10 ( Start time: 10:55:43 AM ) Total Marks: 1
    The STAR schema used for data design is a __________ consisting of fact and dimension tables.
    Select correct option:

    Network model
    Relational model
    Hierarchical data model
    None of the given








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    Quiz Start Time: 10:55 AM Time Left 89
    sec(s)


    Question # 2 of 10 ( Start time: 10:57:07 AM ) Total Marks: 1
    The performance in a MOLAP cube comes from the O(1) look-up time for the array data structure.
    Select correct option:

    True
    False







    Quiz Start Time: 10:55 AM Time Left 88
    sec(s)


    Question # 3 of 10 ( Start time: 10:57:50 AM ) Total Marks: 1
    A data warehouse implementation without an OLAP tool is always possible.
    Select correct option:

    True
    False







    Quiz Start Time: 10:55 AM Time Left 89
    sec(s)


    Question # 4 of 10 ( Start time: 10:58:40 AM ) Total Marks: 1
    In a traditional MIS system, there is an almost linear sequence of queries.
    Select correct option:

    True
    False





    Quiz Start Time: 10:55 AM Time Left 89
    sec(s)


    Question # 5 of 10 ( Start time: 10:59:11 AM ) Total Marks: 1
    Data Warehouse provides the best support for analysis while OLAP carries out the _________ task.
    Select correct option:

    Mandatory
    Whole
    Analysis
    Prediction








    Quiz Start Time: 10:55 AM Time Left 89
    sec(s)


    Question # 6 of 10 ( Start time: 10:59:29 AM ) Total Marks: 1
    The divide&conquer cube partitioning approach helps alleviate the ____________ limitations of MOLAP implementation.
    Select correct option:

    Flexibility
    Maintainability
    Security
    Scalability








    Quiz Start Time: 10:55 AM Time Left 89
    sec(s)


    Question # 7 of 10 ( Start time: 10:59:50 AM ) Total Marks: 1
    _____modeling technique is more appropriate for data warehouses.
    Select correct option:

    entity-relationship
    dimensional
    physical
    None of the given








    Quiz Start Time: 10:55 AM Time Left 89
    sec(s)


    Question # 8 of 10 ( Start time: 11:00:56 AM ) Total Marks: 1
    Multi-dimensional databases (MDDs) typically use ___________ formats to store pre-summarized cube structures.
    Select correct option:

    SQL
    proprietary file
    Object oriented
    Non- proprietary file









    Quiz Start Time: 10:55 AM Time Left 86
    sec(s)


    Question # 9 of 10 ( Start time: 11:01:19 AM ) Total Marks: 1
    Analytical processing uses ____________ , instead of record level access.
    Select correct option:

    multi-level aggregates
    Single-level aggregates
    Single-level hierarchy
    None of the Given







    Quiz Start Time: 10:55 AM Time Left 89
    sec(s)


    Question # 10 of 10 ( Start time: 11:01:41 AM ) Total Marks: 1
    Data warehousing and on-line analytical processing (OLAP) are _______ elements of decision support system.
    Select correct option:

    Unusual
    Essential
    Optional
    None of the given
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