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    Database Systems Design Study Set 2
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    Exam 11: Database Performance Tuning and Query Optimization
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    When Moving Data from Permanent Storage to RAM, an I/O
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When Moving Data from Permanent Storage to RAM, an I/O

Question 36

Question 36

Multiple Choice

When moving data from permanent storage to RAM, an I/O disk operation retrieves a(n) :


A) entire table.
B) entire physical disk block.
C) single row containing the attribute requested.
D) single attribute requested only.

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