單項選擇題

What purpose would you achieve by enabling the block change tracking feature？（）

A. Eliminate the necessity for backups.
B. Perform optimized image copy backups.
C. Perform optimized incremental backups.
D. Enable checkpoint （CKPT） to perform checkpointing at every block change.
E. Enable database writer （DBWn） to write changed blocks to data files faster.

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單項選擇題

A data file become corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）

A. Flash back all the tables in the data file， one by one.
B. Restore the data file to a new location and perform a media recovery.
C. Flash back the database， there is no need to restore the data file.
D. Restore the data file from the most recent backup and flash the database.

單項選擇題

Exhibit： View the Exhibit and examine the characteristic of the USERS tablespace. You observe that a large volume of inserts and deletes are happening on the TRANS table in the USERS tablespace and you suspect that the TRANS table is fragmented. Which advisory component would you refer to， in order to find information about table fragmentation？（）

A. Memory Advisor
B. Segment Advisor
C. SLQ Tuning Advisor
D. SLQ Access Advisor
E. Automatic Database Diagnostic Monitor （ADDM）

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What purpose would you achieve by enabling the block change tracking feature？（）

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A data file become corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）

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What purpose would you achieve by enabling the block change tracking feature？（）

A data file become corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）