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Home ‣ Database ‣ Physical Database Design Comments
  • Question

  • A bitmap index is an index on columns from two or more tables that come from the same domain of values.


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  • A. True
  • B. False

  • Correct Answer
  • False 

    • Physical Database Design problems

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    • 1. The three newest database architectures in use today are relational, multidimensional and hierarchical.

    • Options
    • A. True
    • B. False
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    • 2. In general, larger block sizes are used for online transaction processing applications and smaller block sizes are used for databases with a decision support or data warehousing system.

    • Options
    • A. True
    • B. False
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    • 3. An entity cluster is a set of one or more entity types and associated relationships.

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    • A. True
    • B. False
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    • 4. Generalization is the process of defining more general entity types from a set of more specialized entity types.

    • Options
    • A. True
    • B. False
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    • 5. An entity instance of a subtype represents the same entity instance of a supertype.

    • Options
    • A. True
    • B. False
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    • 6. Hashing algorithm converts a primary key value into a record address.

    • Options
    • A. True
    • B. False
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    • 7. Some advantages of partitioning include: efficiency, security, and load balancing.

    • Options
    • A. True
    • B. False
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    • 8. When storage space is scarce and physical records cannot span pages, creating multiple physical records from one logical relation will minimize wasted storage space.

    • Options
    • A. True
    • B. False
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    • 9. Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process.

    • Options
    • A. True
    • B. False
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    • 10. Distributing the columns of a table into several separate physical records is known as horizontal partitioning.

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    • A. True
    • B. False
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