OCP-V13-052

QUESTION 52
You have the following requirements in relation to the detection of block corruption for your database
instance:
Check for logical self-consistency of data blocks when modified in memory.
Checksums are calculated before and after the block change.
Checks are performed for the lost writes to the physical standby database.
Which method would help you perform the above checks automatically?
A. Set the DB_SECUREFILE parameter to PERMITTED.
B. Set the DB_ULTRA_SAFE parameter to DATA_ONLY.
C. Set the DB_LOCK_CHECKSUM parameter to TYPICAL.
D. Set the DB_LOST_WRITE_PROTECT parameter to TYPICAL.
Correct Answer: B

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您有以下要求，在关系到您的数据库中的块损坏的检测
实例：
在内存中修改数据块的逻辑自一致性检查。

校验和前、后计算块的变化。

检查丢失写入物理备份数据库。

哪种方法能自动执行上述检查？
B.设置db_ultra_safe参数data_only。

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