（547）You backed up the database at 8 a.m. today using an online backup.

Accounting made a large change to the underlying data between 10 a.m. and noon.

Which of the following actions would ensure that the changes could be recovered using the 8 a.m. backup?

A. Create a manual incremental online database backup.

B. Back up all the archived redo logs generated since the 8 a.m.backup.

C. Create a brand-new backup after all the changes have been applied.

D. There is no way to make the changes recoverable based on the 8 a.m.backup.

E. Perform an online backup of the tablespace(s)that contained changed data.

答案：（B）

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Oracle 11G OCP 1Z0-053 547