1Z0-117 Exam Questions & Answers

Exam Code: 1Z0-117

Exam Name: Oracle Database 11g Release 2: SQL Tuning Exam

Updated: Mar 20, 2024

Q&As: 125

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Practice These Free Questions and Answers to Pass the Oracle Database Exam

Questions 1

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.

Show Answer
Questions 2

You are administering a database supporting an OLTP workload. A new module was added to one of the applications recently in which you notice that the SQL statements are highly resource intensive in terms of CPU, I/O and temporary space. You created a SQL Tuning Set (STS) containing all resource-intensive SQL statements. You want to analyze the entire workload captured in the STS. You plan to run the STS through the SQL Advisor.

Which two recommendations can you get?

A. Combing similar indexes into a single index

B. Implementing SQL profiles for the statements

C. Syntactic and semantic restructuring of SQL statements

D. Dropping unused or invalid index.

E. Creating invisible indexes for the workload

F. Creating composite indexes for the workload

Show Answer
Questions 3

You notice some performance degradation for a high-load SQL statement in your database. After investigations, you run the SQL Tuning Advisor, which recommends a SQL Profile. You accept the profile recommendation resulting in a new, tuned execution plan for the statement.

Your database uses SQL plan management and a SQL plan baseline exists for this SQL statement.

Which statement is true?

A. The database adds the tuned plan to the SQL plan baseline as a nonfixed plan.

B. The database adds the tuned plan to the SQL plan baseline as a fixed plan.

C. The optimizer uses the new tuned plan only when a reproducible fixed plan is present.

D. The created SQL profile will continuously adapt to all changes made to the database, the object, and to the system statistics over an extended length of time.

Show Answer
Questions 4

Examine the execution plan:

Which two are true regarding the execution plan?

A. The CUSTOMERS table is hash partitioned.

B. The SALES table is hash partitioned.

C. The CUSTOMERS table is scanned first and selected partitions from the SALES table are scanned based on the BLOOM Filter created during the scan of the CUSTOMERS table.

D. The SALES table is scanned first and selected partitions from the CUSTOMERS table are scanned based on the Bloom Filter created during the scan of the SALES table.

E. Both the CUSTOMERS and SALES tables are scanned simultaneously and rows from the CUSTOMERS table are joined to row of the SALES table.

F. The CUSTOMERS table is range partitioned.

Show Answer
Questions 5

Refer to the Exhibit.

Execution plan: What must be the correct order of steps that the optimizer executes based on the ID column the execution plan?

A. 3, 5, 4, 6, 7

B. 3, 5, 4, 7, 6

C. 3, 4, 5, 7, 6

D. 4, 5, 3, 7, 6

Show Answer

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