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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 Jun 4, 2026.
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Which two actions can cause invalidation or loss of one or more results in the SQL Query Result Cache?
The SQL Query Result Cache stores the results of queries and PL/SQL function calls for reuse. However, entries in the result cache can be invalidated or lost under certain conditions:
A) Results can be aged out of the cache when the cache becomes full and new results need to be stored. This process ensures that the cache does not exceed its allocated memory and that it contains the most recently used entries.
B) Setting the RESULT_CACHE_MAX_SIZE parameter to 0 will effectively disable the result cache and all cached results will be lost, as Oracle will no longer allocate any memory to the result cache.
Oracle Database Performance Tuning Guide, 19c
Which application lifecycle phase could be managed reactively?
The production phase of the application lifecycle is often managed reactively. While proactive measures and performance tuning are essential, unforeseen issues can arise in production that require immediate attention and resolution. Reactive management involves monitoring performance and responding to issues as they occur, ensuring the application maintains acceptable performance levels for end-users.
Reference
Oracle Database 19c Performance Tuning Guide - Reactive Tuning
Which three statements are true about tuning dimensions and details of v$sys_time_model and DB time?
A) Statspack is a performance diagnostic tool that can help identify high CPU usage issues. High CPU time may indicate that SQL statements need to be tuned for better performance.
D) High wait times can often be reduced by instance tuning, such as adjusting database parameters or improving I/O performance.
F) DB Time is a cumulative time metric that includes the time spent by both user sessions and background processes executing database calls. Reference:
Oracle Database Performance Tuning Guide, 19c
Oracle Database Concepts, 19c
Examine this statement and its corresponding execution plan:
Which phase introduces the CONCATENATION step?
The CONCATENATION step in an execution plan is introduced during the SQL Transformation phase. This phase is part of the optimizer's query transformations which can include various techniques to rewrite the query for more efficient execution. The CONCATENATION operation is used to combine the results of two separate SQL operations, typically when there is an OR condition in the WHERE clause, as seen in the provided query.
Oracle Database SQL Tuning Guide, 19c
Oracle Database Concepts, 19c
You must configure and enable Database Smart Flash Cache for a database.
You configure these flash devices:
Examine these parameter settings:
What must be configured so that the database uses these devices for the Database Smart Flash Cache?
To configure and enable Database Smart Flash Cache, you must set the DB_FLASH_CACHE_SIZE parameter to reflect the combined size of the flash devices you intend to use for the cache. In this scenario, two flash devices are configured: /dev/sdj with 128G and /dev/sdk with 64G.
Determine the combined size of the flash devices intended for the Database Smart Flash Cache. In this case, it's 128G + 64G = 192G.
However, Oracle documentation suggests setting DB_FLASH_CACHE_SIZE to the exact sizes of the individual devices, separated by a comma when multiple devices are used.
Modify the parameter in the database initialization file (init.ora or spfile.ora) or using an ALTER SYSTEM command. Here's the command for altering the system setting:
ALTER SYSTEM SET DB_FLASH_CACHE_SIZE='128G,64G' SCOPE=SPFILE;
Since this is a static parameter, a database restart is required for the changes to take effect.
Upon database startup, it will allocate the Database Smart Flash Cache using the provided sizes for the specified devices.
It is important to note that MEMORY_TARGET and MEMORY_MAX_TARGET parameters should be configured independently of DB_FLASH_CACHE_SIZE. They control the Oracle memory management for the SGA and PGA, and do not directly correlate with the flash cache configuration.
Reference
Oracle Database 19c Documentation on Database Smart Flash Cache
Oracle Support Articles and Community Discussions on DB_FLASH_CACHE_SIZE Configuration
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