OCP 11G认证考试
多选题While deploying a new application module, the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe the consequences?（）AThe plan baselines can be evolve
题目
The plan baselines can be evolved over time to produce better performance.
The newly generated plans are directly placed into the SQL plan baseline without being verified.
The new SQL statements initially run with the plans that are known to produce good performance under standard test configuration.
The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline has been imported.
相似问题和答案
第1题：
A. The plan baselines are verified with the SQL profiles.
B. All fixed plan baselines are converted into nonfixed plan baselines.
C. All the nonaccepted SQL profiles are accepted into the plan baseline.
D. The nonaccepted plans in the SQL Management Base are verified with the existing plan baselines.
第2题：
While deploying a new application module, the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe the consequences?（）
- A、The plan baselines can be evolved over time to produce better performance.
- B、The newly generated plans are directly placed into the SQL plan baseline without being verified.
- C、The new SQL statements initially run with the plans that are known to produce good performance under standard test configuration.
- D、The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline has been imported.
正确答案:A,C
第3题：
A. generating the SQL profile
B. testing and accepting the SQL profile
C. generating a list of candidate SQLs for tuning
D. adding tuned SQL plans into the SQL plan baseline
E. tuning each SQL statement in the order of importance
F. generating baselines that include candidate SQLs for tuning
第4题：
Which three are the valid statements in relation to SQL plan baselines？（）
- A、 The plans can be manually loaded to the SQL plan baseline.
- B、 The plans in the SQL plan baseline are verified and accepted plans.
- C、 The plans generated for every SQL statement are stored in the SQL plan baseline by default.
- D、 The plan baselines are stored temporarily in the memory as long as the database instance is running.
- E、 For the SQL plan baselines to be accessible to the optimizer， the SYSAUX tablespace must be online.
正确答案:A,B,E
第5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.
正确答案:C,E
第6题：
A. Cursor cache
B. Stored outline
C. SQL Tuning Set
D. Automatic Workload Repository (AWR) snapshots
第7题：
The following parameter are set for your Oracle 12c database instance: OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES=FALSE OPTIMIZER_USE_SQL_PLAN_BASELINES=TRUE You want to manage the SQL plan evolution task manually. Examine the following steps: 1. Set the evolve task parameters. 2. Create the evolve task by using the DBMS_SPM.CREATE_EVOLVE_TASK function. 3. Implement the recommendations in the task by using the DBMS_SPM.IMPLEMENT_EVOLVE_TASK function. 4. Execute the evolve task by using the DBMS_SPM.EXECUTE_EVOLVE_TASK function. 5. Report the task outcome by using the DBMS_SPM.REPORT_EVOLVE_TASK function. Identify the correct sequence of steps:（）
- A、2，4，5
- B、2，1，4，3，5
- C、1，2，3，4，5
- D、1，2，4，5
正确答案:B
第8题：
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.
第9题：
Your system has been upgraded from Oracle Database 10g to Oracle Database 11g. You imported SQL Tuning Sets （STS） from the previous version. After changing the OPTIMIZER_FEATURE_ENABLE parameter to 10.2.0.4 and running the SQL Performance Analyzer， you observed performance regression for a few SQL statements. What would you do with these SQL statements？（）
- A、 Set OPTIMIZER_USE_PLAN_BASELINES to FALSE to prevent the use of regressed plans.
- B、 Capture the plans from the previous version using STS and then load them into the stored outline.
- C、 Capture the plans from the previous version using STS and then load them into SQL Management Base （SMB）
- D、 Set OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES to FALSE to prevent the plans from being loaded to the SQL plan baseline.
正确答案:C
第10题：
Identify the activities performed as part of the Automatic SQL Tuning process in the maintenance window?（）
- A、generating the SQL profile
- B、testing and accepting the SQL profile
- C、generating a list of candidate SQLs for tuning
- D、adding tuned SQL plans into the SQL plan baseline
- E、tuning each SQL statement in the order of importance
- F、generating baselines that include candidate SQLs for tuning
正确答案:A,B,C,E