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Oracle

1Z0-083 · Question #74

1Z0-083 Question #74: Real Exam Question with Answer & Explanation

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Question

While backing up to the Oracle Fast Recovery Area (FRA), you determined the backup is taking too long and suspect a performance bottleneck. Which three are true about diagnosing and tuning these problems? (Choose three.)

Options

  • AIf an RMAN BACKUP VALIDATE command takes roughly the same time as an actual backup,
  • BSetting DBWR_IO_SLAVES to a non zero value can improve backup performance when using
  • CIf an RMAN BACKUP VALIDATE command takes noticeably less than an actual backup, then
  • DIf an RMAN BACKUP VALIDATE command takes roughly the same time as an actual backup,
  • EData files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a
  • FSetting DBWR_IO_SLAVES to a non zero value can improve backup performance when using
  • GData files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance

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