多项选择题

The loss of which two types of files may require a recovery with the RESETLOGS option？（）

A. control files
B. password file
C. archived log files
D. system-critical data files for which all the redo entries are present
E. non-system-critical data files for which all the redo entries are present

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多项选择题

You want to use the SQL Tuning Advisor to generate recommendations for badly written SQL statements in your development environment. Which three sources can you select for the advisor to analyze？（）

A. Top SQL
B. snapshots
C. SQL Tuning sets
D. index access path
E. optimizer statistics
F. materialized view logs

单项选择题

You are managing an Oracle Database 10g database that uses Oracle Managed Files （OMF）. You enabled the block change tracking feature for the database. Which statement regarding the change tracking file is true？（）

A. One block change tracking file is created for each data file. By default， the file is created in DB_CREATE_FILE_DEST.
B. One block change tracking file is created for each data file. By default， the file is created in BACKGROUND_DUMP_DEST.
C. One block change tracking file is created for the database. By default， the file is created in DB_CREATE_FILE_DEST.
D. One block change tracking file is created for the database. By default， the file is created in BACKGROUND_DUMP_DEST.

单项选择题

You execute the following command to enable a session in resumable mode：
SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60；
What is the impact of a timeout on the statements being suspended？（）

A. The statements remain suspended for at least 60 seconds.
B. The statements are suspended for 60 seconds and then they are executed.
C. The suspended statements error out if the problem is not rectified within 60 seconds.
D. The statements are automatically suspended 60 seconds after an error is received， and then attempt to execute normally again.