Free Oracle 1Z0-084 Exam Questions

Become Oracle Certified with updated 1Z0-084 exam questions and correct answers

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Total 378 Questions | Updated On: Jan 29, 2026

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Question 1

Which tool can be used to monitor and troubleshoot performance issues in Oracle Database 19c?

A : Oracle Enterprise Manager

B : SQL Developer

C : Oracle SQL Monitor

D : Oracle Exadata

Answer: A

Question 2

Which three statements are true about tuning dimensions and details of v$sys_time_model and DB time?

A : Statspack cannot account for high CPU time when CPU TIME is a Top 10 event in DB time. When CPU time is high, SQL tuning may improve performance.

B : Systems in which CPU time is dominant need more tuning that those in which WAIT TIME is dominant.

C : The proportion of WAIT TIME to CPU TIME always increases with increased system load.

D : When WAIT TIME is high, instance tuning may improve performance.

E : Parse Time Elapsed accounts for successful soft and hard parse operations only.

F : DB Time accounts for all time used by background processes and user sessions.

Answer: A,D,F

Question 3

What is the purpose of Automatic Workload Repository (AWR) in Oracle Database 19c performance tuning?

A : It provides real-time performance data that is used to proactively identify bottlenecks and service degradation.

B : It creates a baseline of performance statistics that can be used to compare with current performance data to help identify issues.

C : It allows for the automated collection and storage of performance data, which can be accessed through the Oracle Enterprise Manager.

D : It provides a graphical user interface that displays performance data in real-time and allows for real-time adjustments to system settings.

Answer: B

Question 4

When using Automatic Memory Management in Oracle Database 19c, what is the purpose of the MEMOPTIMIZE_POOL_SIZE parameter?

A : It specifies the maximum size of the SGA.

B : It determines the size of the shared pool.

C : It controls the amount of memory reserved for PGA usage.

D : It adjusts the amount of memory allocated to the memoptimize pool.

Answer: D

Question 5

Which section of the Automatic Workload Repository (AWR) provides a summary of the time model statistics for each foreground process, as well as details of top SQL statements?

A : SQL Statistics

B : Operating System Statistics

C : Instance Activity Stats

D : Wait Classes

Answer: A

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Total 378 Questions | Updated On: Jan 29, 2026

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