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單項選擇題

Your database runs in ARCHIVELOG mode， and is backed up every Sunday night using RMAN scripts. On Friday your database crashes. Now you want to use the backups from last Sunday night to restore your database.
How can you do this？（）

A.A
B.B
C.C
D.D

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多項選擇題

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.

單項選擇題

Management has decided that the database must be available 24 hours a day， 7 days a week. Given this requirement， which type of backup is required？（）

A.user-managed backups.
B.partial database backups.
C.consistent database backups.
D.inconsistent database backups.