57题、choose one
Which statement is true about a database in ARCHIVELOG mode?
A) Full database backups can be performed when the database is opened.
B) A Fast Recovery Area (FRA) must be configured for the database.
C) Online redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.
D) All backups taken prior to switching to ARCHIVELOG mode can be used to perform complete recovery.
Answer：A