Physical Database Design(Ict-Basic)Q1

Which of the following improves a query's processing time?

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What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?

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Which of the following is an advantage of partitioning?

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What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length?

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If a denormalization situation exists with a one-to-one binary relationship, which of the following is true?

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Selecting a data type involves which of the following?

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A secondary key is which of the following?

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Which of the following is not a factor to consider when switching from small to large block size?

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Sequential retrieval on a primary key for sequential file storage has which of the following features?

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A multidimensional database model is used most often in which of the following models?

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A rule of thumb for choosing indexes for a relational database includes which of the following?

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Do not specify a unique index for the primary key of each table.
Be careful indexing attributes that have null values.
Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries.
Indexes are more useful on smaller tables.

The fastest read/write time and most efficient data storage of any disk array type is:

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The blocking factor is:

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. If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true?

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Which of the following are integrity controls that a DBMS may support?

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Physical Database Design(Ict-Basic)Q1 : Question 1 of 15