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Oracle 1z0-084 Exam With Confidence Using Practice Dumps

Exam Code:
1z0-084
Exam Name:
Oracle Database 19c: Performance Management and Tuning
Certification:
Vendor:
Questions:
55
Last Updated:
Jul 18, 2025
Exam Status:
Stable
Oracle 1z0-084

1z0-084: Oracle Certification Exam 2025 Study Guide Pdf and Test Engine

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Oracle Database 19c: Performance Management and Tuning Questions and Answers

Question 1

You use SQL Tuning Advisor to tune a given SQL statement.

The analysis eventually results in the implementation of a SQL Profile.

You then generate the new SQL Profile plan and enforce it using a SQL PlanBaselinebut forget to disable the SQLProfile and a few days later you find out that the SQL Profile is generating a new execution plan.

Which two statements are true?

Options:

A.

The existence of two concurrent plan stability methods generates a child cursor for every execution.

B.

The SQL Profiles as well as SQL Plan Baseline are implemented using hints, so they both generate the same plan.

C.

The execution plan is the one enforced by the SQL Profile.

D.

The execution plan is the one enforced by the SQL Plan Baseline.

E.

The SQL Plan Baseline must be accepted in order to be used for the execution plan.

F.

The conflict between the two plan stability methods results in an error.

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Question 2

Which two statements are true about space usage in temporary tablespaces?

Options:

A.

When a global temporary table instantiation is too large to fit in memory, space is allocated in a temporary tablespace.

B.

Temporary tablespaces setting Includes quotas to limit temporary space used by a session for that Temporary tablespace.

C.

A sort will fail if a sort to disk requires more disk space and no additional extent can be found/allocated in/for the sort segment.

D.

When a session consumes all temporary tablespace storage, then the session would hang until the temporary space used by that session is cleared.

E.

Lack of temporary tablespace space for sort operations can be prevented by using temporary tablespace groups.

Question 3

Which Optimizer component helps decide whether to use a nested loop join or a hash join in an adaptive execution plan?

Options:

A.

Statistics Feedback

B.

SQL Plan Directives

C.

Statistics Collector

D.

Automatic Reoptimization

E.

Dynamic Statistics