Oracle
1Z0-497 · Question #133
1Z0-497 Question #133: Real Exam Question with Answer & Explanation
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Question
Which two statements are true about a buffer cache?
Options
- AWhen a buffer is read from a buffer cache, it may be inconsistent and require undo data to make it
- BA buffer cache stores copies of data blocks from all files of the database.
- CBuffer access is kept efficient by maintaining a least recently used (LRU) list for dirty and clean
- DA buffer cache always resides completely in System Global Area (SGA).
- EA buffer cache contains exactly three pools: default, keep, and recycle pool.
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