多选题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？（）AARCHIVELOG mode.BNOARCHIVELOG mode.COpen database backups.DConsistent whole backups.
题目
多选题
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.