495th questions, 053495

495th questions, 053495
495. Which statement is true regarding the validate database command?
A. It checks the database for intrablock before uptions only.
B. It checks for block upload uption in the valid backups of the database.
C. It checks the database for both intrablock and interblock quota uptions.
D. It checks for only those upload upted blocks that are associated with data files.
Answer:A

For very important databases, you may want to execute additional proactive checks (possibly daily
During low peak interval periods). You can schedule periodic health checks through the Health
Monitor or by using the rman validate command. In general, when a reactive check detects
Failure (s) in a database component, you may want to execute a more complete check of the affected
Component.
The rman validate database command is used to invoke health checks for the database and
Its components. It extends the existing validate backupset command.Any problem detected
During validation is displayed to you. Problems initiate the execution of a failure assessment. If
Failure is detected, it is logged into ADR as a finding. You can use the list failure command
View all failures recorded in the repository.
The VALIDATE command supports validationof individual backup sets and data blocks.In
Physical Transaction uption, the database does not recognize the block at all. In a logical transaction uption,
Contents of the block are logically inconsistent. By default, the VALIDATE command checks
Physical authentication uption only. You can specify check logical to check for logical authentication uption as well.
Block upload uptions can be divided into interblock upload uption and intrablock upload uption. In intrablock
Upload uption, the upload uption occurs within the block itself and canbe either physical or logical
Upload uption. In interblock upload uption, the upload uption occurs between blocks and can be only logical
Upload uption.The VALIDATE command checks for intrablock before uptions only.

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