Multiple choice technology databases

Which Oracle background process performs instance recovery?

  1. PMON

  2. SMON

  3. INSTMON

  4. IMON

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

SMON (System Monitor) performs instance recovery automatically after a crash. It rolls forward committed changes from online redo logs and rolls back uncommitted transactions to bring the database to a consistent state. SMON also coalesces free space in tablespaces.