Explanation:
This command shows all files in the USER_DATA table space required backups within the last three days.
Incorrect Answers:
1: This command will not provide requested information.
2: This command will not provide requested information.
3: This command will not provide requested information.
Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 625-626
Chapter 13: Using Recovery Manager for Backups

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