RMAN offers the equivalent of the SQL command alter database backup controlfile to trace.（）

多项选择题Which two statements about the SQL Management Base (SMB) are true? （）(Choose two.)

A. It contains only SQL profiles generated by SQL Tuning Advisor.
B. It stores plans generated by the optimizer using a stored outline.
C. It is part of the data dictionary and stored in the SYSAUX tablespace.
D. It is part of the data dictionary and stored in the SYSTEM tablespace.
E. It contains the statement log, the plan history, plan baselines, and SQL profiles.

单项选择题YouareusingRMANtobackupyourARCHIVELOGmodedatabase.Youhaveenabledcontrol-fileautobackups.WhichfilesarenotbackedupduringtheRMANbackup？（）

A. Database Datafiles
B. Database Control Files
C. Online redo logs
D. Archived redo logs
E. The database SPFILE
F. None of the above，all these files are backed up

单项选择题You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）

A. The tuned plan is not added to the SQL plan baseline.
B. The tuned plan is added to the fixed SQL plan baseline as a fixed plan.
C. The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan.
D. The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.

单项选择题What is the end result of these commands if they are successful？（）   RMAN> show retention policy；  RMAN configuration parameters for database with db_unique_name  ORCL are： CONFIGURE RETENTION POLICY TO REDUNDANCY 1； # default Backup database tag=gold_copy plus archivelog tag=gold_copy delete input； Backup  database tag=silver_copy plus archivelog tag=silver_copy delete input；

A. Attempting to restore silver_copy will fail.
B. Attempting to restore gold_copy will fail.
C. Both backups will be available for restore without question.
D. Attempting to restore gold_copy may or may not succeed.
E. You will not be able to restore either gold_copy or silver_copy.

多项选择题Which three statements about performance analysis by SQL Performance Analyzer are true? （）(Choose three.)

A. It detects changes in SQL execution plans.
B. It produces results that can be used to create the SQL plan baseline.
C. The importance of SQL statements is based on the size of the objects accessed.
D. It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.
E. It shows only the overall impact on workload and not the net SQL impact on workload.