Which two are true about the Fast Recovery Area (FRA)?數據庫
A)It should be larger than the database.ide
B)Only consistent backups can be stored in the FRA.日誌
C)Space management in the FRA is influenced by the database backup retention policy.flash
D)It must reside on the same file system as the database data files.it
E)A database must be in archivelog mode to use the FRA.io
Answer: ACast
趙:class
閃回恢復區(Fast Recovery Area,FRA)是一塊可選的磁盤位置,能夠用來存儲與恢復相關的文件,例如控制文件和聯機重作日誌副本、歸檔重作日誌文件、閃回日誌和 RMAN 備份。Oracle 數據庫和RMAN 自動管理快速恢復區域中的文件。能夠指定磁盤配額(由參數 DB_RECOVERY_FILE_DEST_SIZE 決定),這是 FRA 區域的較大大小。Fast Recovery Area 以前稱爲 Flash Recovery Area,也可稱爲快速恢復區。從 Oracle 11g R2 開始,Oracle 已經將 flash recovery area 改名爲 fast recovery area ,這是爲了消除與 flashback database 之間的混淆。 flash 這個詞可能會誤導人們, 想到它僅僅是用於 flashback 。file
排除 only 和 must 選項。數據