单项选择题
A. The incident metadata is purged when the problem is resolved and the DBA closes the SR
B.The incident files and dumps are not retained in the ADR for the manually created incidents
C. The incident files are retained but the incident metadata is purged when the problem is resolved and the DBA closes the SR
D. The default setting is for one year after which the incident metadata is purged from the ADR and the files are retained for one month
多项选择题 The database Is configured in ARCHIVELOG mode. The database needs to be up 24 X 7. You want to perform user managed backup for the data files of the HR_DATA tablespace.To accomplish the task, you issued the following command: SQL> ALTER TABLESPACE hi_data BEGIN BACKUP; Which two statements are true in this scenario? （）
多项选择题 You are managing the APPPROD database as a DBA. You plan to duplicate this database in the same system with the name DUPDB. You issued the following RMAN commands to create a duplicate database: Which three are the prerequisites for the successful execution of the above command?（）
多项选择题 Which two statements are true regarding an Automatic Storage Management (ASM) instance? （）