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What is the purpose of SMON background process?

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What is the purpose of SMON background process?

(a) Performs crash recovery when a failed instance starts up again

(b) Performs recovery when a user process fails

(c) Writes redo log entries to disk

(d) None of the mentioned

I had been asked this question in quiz.

My question comes from Rapid Application Development in portion Database Programming Techniques of Database Management

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The correct choice is (a) Performs crash recovery when a failed instance starts up again

The explanation is: SMON (System MONitor) is an Oracle background process created when you start a database instance.

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