Oracle
1Z0-083 · Question #272
1Z0-083 Question #272: Real Exam Question with Answer & Explanation
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Backup and Recovery
Question
Which three are true about corrupted data blocks and their recovery in an Oracle Database?
Options
- AIf a row lock is held by a nonexistent transaction, the block containing the row is media corrupt.
- BDB_BLOCK_CHECKING=TRUE causes a check sum to be added to each data block to help
- CA media corrupt block is one where the block is not formatted correctly.
- DThe ANALYZE TABLE VALIDATE STRUCTURE CASCADE command verifies that each table
- EIf a row lock is held by a nonexistent transaction, the block containing the row is logically
- FDB_LOST_WRITE_PROTECT=TYPICAL causes extra logging overhead on the standby
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Topics
#Data block corruption#Logical vs media corruption#DB_LOST_WRITE_PROTECT#ANALYZE TABLE command