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Oracle 1Z0-084 Dumps - Pass Oracle Database 19c: Performance Management and Tuning Exam in First Attempt 2026
The Oracle 1Z0-084 exam, Oracle Database 19c: Performance Management and Tuning, is part of the Oracle Database certification track. It is designed for database professionals who want to validate their ability to monitor, diagnose, and tune Oracle Database performance in real-world environments. This exam matters because performance tuning skills are essential for keeping Oracle systems efficient, stable, and responsive under workload pressure.
| # | Exam Topics | Sub-Topics | Approximate Weightage (%) |
|---|---|---|---|
| 1 | Basic Tuning Methods and Diagnostics | Performance methodology, bottleneck identification, diagnostic tools | 10 |
| 2 | Influencing the Optimizer | Optimizer statistics, hints, access paths | 8 |
| 3 | Reducing the Cost of SQL Operations | Query rewrite, execution plan improvement, SQL efficiency | 8 |
| 4 | Tuning the PGA | PGA memory usage, work areas, sort operations | 6 |
| 5 | Using In-Memory Features | In-memory column store, performance benefits, workload usage | 6 |
| 6 | Using Real Application Testing | Workload capture, replay, performance validation | 6 |
| 7 | SQL Performance Management | SQL plan management, baselines, plan stability | 8 |
| 8 | Tuning the Shared Pool | Library cache, parsing, shared pool memory behavior | 5 |
| 9 | Tuning the Buffer Cache | Cache efficiency, physical reads, memory usage | 5 |
| 10 | Using Automatic Memory Management | Memory components, automatic sizing, tuning impact | 7 |
| 11 | Performing Oracle Database Application Monitoring | Application performance checks, session monitoring, workload observation | 6 |
| 12 | Identifying Problem SQL Statements | Top SQL, SQL analysis, performance hotspots | 7 |
| 13 | Using Log and Trace Files to Monitor Performance | Alert logs, trace files, troubleshooting evidence | 5 |
| 14 | Using Metrics, Alerts and Baselines | Thresholds, alerts, baseline comparison | 5 |
| 15 | Using AWR-Based Tools | AWR reports, ADDM, performance diagnostics | 7 |
| 16 | Using Statspack | Statspack snapshots, report analysis, historical tuning | 6 |
This exam tests your practical ability to analyze Oracle Database performance, identify the root cause of bottlenecks, and apply the right tuning method for SQL, memory, and monitoring scenarios. Candidates should expect questions that require hands-on understanding of Oracle diagnostics, workload analysis, and performance management concepts rather than memorization alone.
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QA4Exam.com offers Exam PDF and Online Practice Test materials that are built to help you prepare efficiently for the Oracle 1Z0-084 exam. The PDF gives you actual questions and answers in a convenient study format, while the practice test helps you experience a real exam simulation before test day. You also get up-to-date questions, verified answers, and time management practice so you can build confidence and reduce surprises. With focused preparation from both formats, you can strengthen weak areas and improve your chances of passing on the first attempt.
Frequently Asked Questions
1. Who should take the Oracle 1Z0-084 exam?
This exam is for professionals working with Oracle Database who want to validate performance management and tuning skills. It is a good fit for database administrators, performance engineers, and Oracle specialists.
2. Is the Oracle 1Z0-084 exam considered difficult?
It can be challenging because it focuses on practical performance tuning, diagnostics, and workload analysis. Candidates who understand Oracle concepts and have hands-on experience usually find it more manageable.
3. Can I pass with only braindumps?
Braindumps alone are not the best way to prepare because the exam may test understanding, not just memory. A better approach is to use dumps with real study and practice so you understand the concepts behind the answers.
4. Do I need hands-on experience to pass?
Hands-on experience is very helpful because the exam covers tuning methods, monitoring, and diagnostics that are easier to understand in a real Oracle environment. Even if you use study materials, practical exposure improves your chances of success.
5. Are QA4Exam.com dumps and practice tests enough for first attempt success?
QA4Exam.com materials are designed to support first-attempt preparation by giving you actual questions and answers, verified content, and realistic practice. Combining them with review of the exam topics gives you a stronger preparation plan.
6. What format do the QA4Exam.com materials use?
The Exam PDF is a study-friendly question and answer format, and the Online Practice Test simulates the exam environment. Both formats are created to help you review content, practice timing, and check your readiness.
7. If I fail, can I retake the Oracle exam?
Retake rules are set by Oracle and can change, so you should always check the current official exam policy. It is best to prepare thoroughly before scheduling to reduce the need for a retake.
The questions for 1Z0-084 were last updated on Sep 4, 2026.
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Which three statements are true about server-generated alerts?
Server-generated alerts in Oracle Database are designed to notify DBAs and other administrators about issues within the database environment. These alerts can be triggered by a variety of conditions, including threshold-based metrics and specific events such as ORA- error messages. Here's how these options align with the statements provided:
A (True): Server-generated alerts are indeed notifications from the Oracle Database Server that highlight existing or impending issues. These alerts are part of Oracle's proactive management capabilities, designed to inform administrators about potential problems before they escalate.
C (True): These alerts are logged in the alert log of the Oracle Database. The alert log is a crucial diagnostic tool that records major events and changes in the database, including server-generated alerts. This log is often the first place DBAs look when troubleshooting database issues.
F (True): Server-generated alerts may include suggestions for correcting identified problems. Oracle Database often provides actionable advice within these alerts to assist in resolving issues more efficiently. These suggestions can range from adjusting configuration parameters to performing specific maintenance tasks.
Options B, D, and E do not accurately describe server-generated alerts:
B (False): While the statement might have been true in some contexts, Oracle's server-generated alerts often include corrective suggestions, making this statement incorrect.
D (False): Server-generated alerts can be viewed from various interfaces, not just the Cloud Control Database home page. They are accessible through Enterprise Manager, SQL Developer, and directly within the database alert log, among other tools.
E (False): While it's true that threshold settings for some alerts can be modified, the method specified, using DBMS_SERVER_ALERT, is not correct. Threshold settings are typically adjusted through Enterprise Manager or by modifying specific initialization parameters directly.
Oracle Database Documentation: Oracle Database 19c: Performance Management and Tuning
Oracle Base: Alert Log and Trace Files
Oracle Support: Understanding and Managing Server-Generated Alerts
You execute the following:
EXECUTE DBMS_AuTO_TASK_ADMIN.DISABLE;
Which advisor remains enabled?
When you execute DBMS_AUTO_TASK_ADMIN.DISABLE, it disables all automated maintenance tasks related to the Auto Task framework. This includes tasks such as the Automatic SQL Tuning Advisor, Automatic Segment Advisor, and others. However, the Automatic Optimizer Statistics Collection (D) remains enabled as it is not part of the Auto Task framework. The gathering of optimizer statistics is controlled separately and is a critical part of the database's self-tuning mechanism to ensure the optimizer has up-to-date information about the data distribution within tables and indexes.
Reference
Oracle Database 19c PL/SQL Packages and Types Reference - DBMS_AUTO_TASK_ADMIN
Oracle Database 19c Database Administrator's Guide - Managing Optimizer Statistics
Examine this output of a query of VSPGA_TAPGET_ADVICE:
Which statements is true'
The V$PGA_TARGET_ADVICE view provides advice on potential performance improvements by adjusting the PGA_AGGREGATE_TARGET parameter. The column ESTD_OVERALLOC_COUNT indicates the estimated number of work areas that would perform multiple passes if the PGA_AGGREGATE_TARGET were set to the size in the TARGET_MB column.
A) According to the output, at the target of 700 MB, the ESTD_OVERALLOC_COUNT is 30. This suggests that if PGA_AGGREGATE_TARGET is set to 700 MB, 30 multipass execution work areas would be required. If we look further down, at the target of 800 MB, the ESTD_OVERALLOC_COUNT is 0, indicating that increasing PGA_AGGREGATE_TARGET to 800 MB or more would eliminate the need for multipass executions, not at 700 MB as initially suggested by the option. Hence, the verified answer derived from the data is slightly nuanced; it should be 800 MB to eliminate all multipass executions.
Oracle Database Performance Tuning Guide, 19c
Oracle Database Reference, 19c
Examine this statement and output:
Which two situations can trigger this error?
The ORA-15505 error indicates that the instance encountered errors while trying to access the specified directory. This could be due to:
A) Insufficient privileges: The user attempting to start the workload capture might not have the required permissions to execute the DBMS_WORKLOAD_CAPTURE package or to read/write to the directory specified.
E) Accessibility: The database instance may not be able to access the directory due to issues such as incorrect directory path, directory does not exist, permission issues at the OS level, or the directory being on a file system that's not accessible to the database instance.
Oracle Database Error Messages, 19c
Oracle Database Administrator's Guide, 19c
Which statement is true about DB time in V$$YS_TIME_MODEL?
DB time includes the time spent on user and background processes. It can be greater than the elapsed time because it accumulates the active time of all the processes. For example, if two sessions are each active for 2 seconds at the same time, DB time would accumulate 4 seconds, while the elapsed time would be only 2 seconds. Reference:
Oracle Database Performance Tuning Guide, 19c
Oracle Database Reference, 19c
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