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.
Explanation:
Identify situations that will require the RMAN recovery catalog.
Understand that the recovery catalog is largely optional. A recovery catalog will be needed for storing scripts, and it will be required if you want to store backup records longer than one year or beyond the setting of CONTROL_FILE_RECORD_KEEP_TIME.Oracle Press 1Z0-053 Exam Guide, Chapter 3: Creating and Maintaining an RMAN Catalog
Finally, using a recovery catalog permits you to use the following RMAN commands:
– BACKUP…KEEP UNTIL TIME Keep a backup for a period of time that differs from the configured
retention policy.
– BACKUP…KEEP FOREVER Keep a backup indefinitely or until you manually remove it.
– REPORT SCHEMA…AT Show the structure of the database at a specific time in the past.