Oracle 11G OCP 1Z0-053 620

（620）You are using the control file to maintain information about the database backups that are being performed by Recovery Manager(RMAN).

Identify two scenarios is which you must have a recovery catalog.(Choose two.)

A. To store the backup information of multiple database

B. To restrict the amount of space that is used by the backups

C. To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter.

D. To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.

答案：（A、D）

解析：

A，catalog資料庫目的就是存放rman備份的後設資料，所以有多個資料庫的rman後設資料需要管理的話，可以存放在一臺伺服器上，實現集中管理

D，執行REPORT SCHEMA…AT命令的時候，必須要有CATALOG資料庫

相關的考題如下：

Your database is not using an RMAN recovery catalog.Which of the following commands are not available to you in this scenario?(Choose all that apply.)

A. CONFIGURE RETENTION...

B. BACKUP...KEEP FOREVER

C. DELETE...EXPIRED

D. REPORT SCHEMA...AT

答案：（B，D）

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