Explanation:
Verification of structural integrity of Oracle database files is done with the DBVERIFY utility. DBVERIFY is a utility that verifies the integrity of a datafile backup or production file. It can be used either to verify that a backup is usable, to verify the usability of a production database, or to diagnose a situation where corruption is suspected on a datafile or backup. The utility can cause contention in the shared pool when there is high activity in the database.
Incorrect Answers:
1: The utility can also work with the open database.
2: This utility cannot be used to verify the redo log files for corruption, Log Miner utility is used for this purpose.
3: The utility can work with the database in NOARCHIVELOG mode also.
Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 659-661
Chapter 14: Database Failure and Recovery

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