Q67. Which two are true about Oracle instance recovery?
Q67. Which two are true about Oracle instance recovery?
- A. Recovery begins from the beginning of the CURRENT redo log group.
- B. Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the database is opened.
- C. Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.
- D. Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.
- E. Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).
- F. Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.
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