单项选择题
What is the advantage of setting the ASM-preferred mirror read for the Stretch cluster configuration?（）
A. It improves resync operations.
B. This feature enables much faster file opens.
C. It improves performance as fewer extent pointers are needed in the shared pool.
D.It improves performance by reading from a copy of an extent closest to the node.
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相关考题
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单项选择题
You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table?（）
A. The Automatic Memory Manager (AMM)
B. The SQL Tuning Advisor
C. The Segment Advisor
D. The SQL Access Advisor SQL -
单项选择题
View the following SQL statements: You want to back out transaction T2. Which option would you use?（）
A. It is possible, but transaction T3 also backs out.
B. It is possible with the NOCASCADE_FORCE option.
C. It is possible with the NONCONFLICT_ONLY option.
D. It is not possible because it has conflicts with transaction T3. -
多项选择题
You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process?（）
A. the SQL text SQL
B. the execution plan
C. the execution context
D. the execution frequency
E. the system change number (SCN)
