Which two requirements are critically important to implement for your database backup strategy if you require a 24 hours a day， 7 days a week production environment？（）<br>A:ARCHIVELOG mode.<br>B:NOARCHIVELOG mode.<br>C:Open database backups.<br>D:Consistent whole backups.

Which two requirements are critically important to implement for your database backup strategy if you require a 24 hours a day， 7 days a week production environment？（）
A:ARCHIVELOG mode.
B:NOARCHIVELOG mode.
C:Open database backups.
D:Consistent whole backups.

出自：Oracle认证

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