Printable PDFOracle Database 11g Release 2: SQL Tuning Exam: 1Z0-117
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Certifications: Recent Updates
Exam Name: Oracle Database 11g Release 2: SQL Tuning Exam
Exam Code: 1Z0-117
Total Questions: 125 Q&As
Last Updated: Mar 23, 2023
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1Z0-117 Online Practice Questions and Answers
Exhibit
Examine the following SQL statement:
Examine the exhibit to view the execution plan. Which statement is true about the execution plan?
A. The EXPLAIN PLAN generates the execution plan and stores it in c$SQL_PLAN after executing the query. Subsequent executions will use the same plan.
B. The EXPLAIN PLAN generates the execution plan and stores it in PLAN_TABLE without executing the query. Subsequent executions will always use the same plan.
C. The row with the ID 3 is the first step executed in the execution plan.
D. The row with the ID 0 is the first step executed in the execution plan.
E. The rows with the ID 3 and 4 are executed simultaneously.
Which three statements are true the Automatic Tuning Optimizer (ATO)?
A. It identifies the objects with stale or missing statistics and gathers statistics automatically.
B. It investigates the effect of new or modified indexes on the access paths for a workload and recommends running that statistics through the SQL Access Advisor.
C. It recommends a SQL profile to help create a better execution plan.
D. It picks up resource-intensive SQL statements from the ADDM and recommends the use of materialized views to improve query performance.
E. It identifies the syntactic, semantic, or design problems with structure of SQL statements leading to poor performance and suggests restricting the statements.
F. It identifies resource-intensive SQL statements, runs them through the SQL Tuning Advisor, and implements the recommendations automatically.
Which three tasks are performed by the parallel execution coordinator process?
A. Allocating parallel execution processes from the parallel execution server pool.
B. Determining the parallel execution method for each operation in the execution plan.
C. Managing the data flow between the producers and consumers during inter-operation parallelism.
D. Any serial processing that is part of the execution plan.
E. Determining the desired number of parallel execution processes
F. Managing the data flow between the producers and consumers during intra-operation parallelism.
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