单项选择题
A. An incremental backup strategy will be used automatically.
B. Read-only datafiles will not be backed up as long as backups of those files already exist and those backups meet established retention criteria.
C. RMAN will configure itself for maximum performance at the cost of CPU.
D. RMAN will configure itself for minimal OS/CPU impact at the cost of time to back up the database.
E. RMAN will automatically compress backups.
单项选择题 Which tuning tool recommends how to optimize materialized views so that these views can take advantage of the general query rewrite feature?（）
单项选择题 WhichcommandisusedtoconfigureRMANtoperformacompressedbackupforeverybackupexecuted？（）
单项选择题 Which statement about Automatic Memory Management with Oracle 11g is true?（）