Free 1z1-084 Questions for Oracle Database 19c Performance and Tuning Management 1z1-084 Exam as PDF & Practice Test Engine

Exam Code/Number: 1z1-084
Exam Name/Title: Oracle Database 19c Performance and Tuning Management
Certification Provider: Oracle
Corresponding Certification: Oracle Database 19c

Exam Questions: 57
Updated On: Jun 29, 2026

Question #1

Which two statements are true about the use and monitoring of Buffer Cache Hit ratios and their value in tuning Database I/O performance?

A. A 60% cache hit ratio can be observed for database instances which have very good I/O performance.

B. The buffer cache advisory view v$db_cache_advice provides advice on cache hit ratios appropriate for the instance workload.

C. The performance of workloads that primarily generate full table scans and fast full index scans are always affected by the cache hit ratio.

D. Both the RECYCLE and KEEP buffer caches should always have a very high cache hit ratio.

E. A 99% cache hit ratio can be observed for database instances which have very poor I/O performance.

Discussion 0

Correct Answer: B,E Vote an answer

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Question #2

A Standard Edition production database has performance problems for two hours on the same day each week.
Which tool must you use to diagnose the problem?

A. Statspack report

B. Database Replay

C. SQL Performance Analyzer

D. AWR Compare Periods report

Discussion 0

Correct Answer: A Vote an answer

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Question #3

You execute the following:
EXECUTE DBMS_AuTO_TASK_ADMIN.DISABLE;
Which advisor remains enabled?

A. Optimizer Statistics Advisor

B. SQL Plan Management Evolve Advisor

C. Automatic SQL Tuning

D. Automatic Segment Advisor

E. Automatic Optimizer Statistics Collection

Discussion 0

Correct Answer: E Vote an answer

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Question #4

Which two Oracle Database features use database services?

A. Oracle SQL Performance Management

B. Oracle Automatic Reoptimization

C. Oracle SQL Tuning Advisor

D. Oracle Scheduler

E. Database Resource Manager

Discussion 0

Correct Answer: D,E Vote an answer

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Question #5

The CURS0R_SHARING and OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES parameters are set to default. The top five wait events in an awr report are due to a large number of hard parses because of several almost identical SQL statements.
Which two actions could reduce the number of hard parses?

A. Increase the size of the library cache.

B. Set the CURSOR_SHARING parameter to FORCE.

C. Set OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES to TRUE.

D. Create the KEEP cache and cache tables accessed by the SQL statements.

E. Create the RECYCLE cache and cache tables accessed by the SQL statements.

Discussion 0

Correct Answer: A,B Vote an answer

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Question #6

What is the right time to stop tuning an Oracle database?

A. When the buffer cache and library cache hit ratio is above 95%

B. When the allocated budget for performance tuning has been exhausted

C. When all the concurrency waits are eliminated from the Top 10

D. When the I/O is less than 10% of the DB time

E. When the tuning goal has been met

Discussion 0

Correct Answer: E Vote an answer

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Free 1z1-084 Questions for Oracle Database 19c Performance and Tuning Management 1z1-084 Exam as PDF & Practice Test Engine

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