Explanation:
The RECOVERY WINDOW parameter of the CONFIGURE command specifies the number of days between the current time and the earliest point of recoverability. RMAN does not consider any backup or copy as obsolete if it falls within the recovery window. Additionally, RMAN retains all archived logs and incremental backups that are needed to recover to a random point within the window. Incorrect Answer:
1: This command does not mean that the data file backup will retain for 7 days.
2: This command will not run the recover process itself.
3: RMAN does not automatically delete backups and copies rendered obsolete by the recovery window. Instead, RMAN shows them as OBSOLETE in the REPORT OBSOLETE output and deletes them if you run DELETE OBSOLETE.
4: RMAN does not automatically delete backups and copies rendered obsolete by the recovery window. Instead, RMAN shows them as OBSOLETE in the REPORT OBSOLETE output and deletes them if you run DELETE OBSOLETE.
6: It does not keep the catalog information in the control file for 7 days.
Reference:
OCP Oracle 9i Database: Fundamentals II Exam Guide, Rama Velpuri, p. 224-225
Chapter 9: Oracle Recovery Manager Overview and Configuration

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