Multiple choice

A data block is _____.

  1. the place where all deleted records are persisted

  2. the largest logical storage unit ever available for any database block

  3. the smallest logical storage unit for a database object

  4. all of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In Oracle database architecture, a data block is the smallest logical storage unit - typically 8KB or 16KB. All database data is stored in blocks, which are grouped into extents. Deleted records remain in their blocks until the space is reused.

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