20+ practice questions focused on Performance Tuning And Diagnostics — one of the most tested topics on the Oracle Database 23ai Administrator Professional (OCP, 1Z0-183) (OCP) exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Performance Tuning And Diagnostics PracticeYou notice that Automatic SQL Plan Management is not evolving your plans as expected. What is the most likely cause?
Explanation: Automatic SQL Plan Management relies on the SPM Evolve Advisor task, which runs during maintenance windows to verify and evolve new plans. If this task is disabled (via DBMS_SPM.SET_EVOLVE_TASK_PARAMETER or DBMS_AUTO_TASK_ADMIN.DISABLE), no plans will ever be evolved regardless of other settings. This is the most direct and common cause of SPM not evolving plans.
An application query is failing to use a newly created index. You suspect the optimizer statistics are inaccurate. Which package should you use to gather statistics for this specific table?
Explanation: DBMS_STATS is the standard package for managing optimizer statistics.
Which component of the Oracle Database uses the Automatic Diagnostic Repository (ADR) to store critical errors and performance incidents?
Explanation: ADR is the centralized location for all diagnostic data, including alert logs and incident dumps.
You want to capture a specific set of SQL statements and their execution plans to baseline them. Which package allows you to capture plans from the cursor cache?
Explanation: DBMS_SPM (SQL Plan Management) is the package that allows you to capture SQL statements and their execution plans from the cursor cache to create SQL plan baselines. It provides procedures like CAPTURE_CURSOR_CACHE_SQLSET or LOAD_PLANS_FROM_CURSOR_CACHE to capture plans and evolve them into baselines.
An application is experiencing high library cache lock contention. Which view is best suited to investigate this specific wait event?
Explanation: V$SESSION_WAIT shows details about wait events for active sessions.
+15 more Performance Tuning And Diagnostics questions available
Practice all Performance Tuning And Diagnostics questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Performance Tuning And Diagnostics. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Performance Tuning And Diagnostics questions on the OCP frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Performance Tuning And Diagnostics is tested as part of the Oracle Database 23ai Administrator Professional (OCP, 1Z0-183) (OCP) blueprint. Practicing with targeted Performance Tuning And Diagnostics questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free OCP practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Performance Tuning And Diagnostics is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
Launch a full Performance Tuning And Diagnostics practice session with instant scoring and detailed explanations.
Start Performance Tuning And Diagnostics Practice →