問題文
A physical standby database has been created and is already receiving redo from its primary. The administrator has not added standby redo log files to it yet and asks what those files make possible. What do standby redo log files provide?
選択肢
- Arriving redo lands in a flashback log that the apply process replays once the receiving process completes a group so changes reach the data files as images
- Arriving redo lands in a temporary segment that the apply process sorts before the receiving process closes it so changes reach the data files in commit order
- Arriving redo lands in an online redo log group that the apply process rereads after the receiving process archives it so changes reach the data files in batches
- Arriving redo lands in a dedicated group that the apply process reads while the receiving process is still filling it so changes reach the data files continuously