Explanation:
ARCHIVELOG mode guarantees recovery to the time of failure and the database also can be backed up while it stays online.
Incorrect Answers:
1: Backups are not done automatically for the database in ARCHIVELOG mode.
2: All pending transactions are not committed for the database in ARCHIVELOG mode.
5: Checksums are not performed on all archived files for the database in ARCHIVELOG mode.
Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 675-683
Chapter 14: Database Failure and Recovery

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