ORACLE 1Z1-084 VALID EXAM MATERIALS & 1Z1-084 RELIABLE TEST CAMP

Oracle 1z1-084 Valid Exam Materials & 1z1-084 Reliable Test Camp

Oracle 1z1-084 Valid Exam Materials & 1z1-084 Reliable Test Camp

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Tags: 1z1-084 Valid Exam Materials, 1z1-084 Reliable Test Camp, 1z1-084 Test Topics Pdf, 1z1-084 Test Questions Pdf, Mock 1z1-084 Exams

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Oracle Database 19c Performance and Tuning Management exam aims to assess the candidates' knowledge of this important area of expertise. In particular, the exam focuses on the design and implementation of system infrastructure, the management of database performance and its optimization, the identification and resolution of performance issues in the database, and knowledge of performance monitoring and data management.

Oracle 1Z0-084 Exam is a certification that portrays a professional's skills and knowledge in performance tuning and management of the Oracle Database 19c. A candidature that passes the exam validates their proficiency in managing and tuning the Oracle Database to maximize its efficiency and performance. Oracle Database 19c Performance and Tuning Management certification also enhances the candidate's credibility and job prospects in a highly competitive job market. Oracle Database 19c Performance and Tuning Management certification exam is ideal for professionals seeking to advance their career to higher levels of responsibility in database administration, development, and management roles in enterprises worldwide.

Oracle 1Z0-084 exam consists of 70 multiple-choice questions that must be completed within 105 minutes. 1z1-084 Exam covers a wide range of topics, including database architecture, instance tuning, SQL tuning, memory management, and performance monitoring. Candidates must have a thorough understanding of Oracle Database 19c, as well as experience with performance tuning and management tools such as Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and Enterprise Manager Cloud Control.

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Free PDF Quiz 2025 Oracle 1z1-084: First-grade Oracle Database 19c Performance and Tuning Management Valid Exam Materials

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Oracle Database 19c Performance and Tuning Management Sample Questions (Q25-Q30):

NEW QUESTION # 25
Examine this output of a query of VSPGA_TAPGET_ADVICE:

Which statements is true'

  • A. PGAA_AGGREGATE should be set to at least 800 MB.
  • B. With a target of 800 MB or more, all one-pass execution work areas would be eliminated.
  • C. With a target of 700 MB or more, all multipass executions work areas would be eliminated.
  • D. GGREGATE_TARGET should be set to at least 700 MB.

Answer: C

Explanation:
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.
References:
* Oracle Database Performance Tuning Guide, 19c
* Oracle Database Reference, 19c


NEW QUESTION # 26
During which application lifecycle phase do you take baselines?

  • A. Testing
  • B. Migration or upgrade
  • C. Design and development
  • D. Deployment
  • E. Production

Answer: E

Explanation:
Baselines are typically taken during the production phase of the application lifecycle. They provide a snapshot of performance metrics under normal operating conditions which can be used for comparison against future performance. Baselines are essential for understanding how the system performs under its typical workload and for detecting deviations from this expected performance over time, especially after changes like migrations, upgrades, or significant changes in user activity.
References
* Oracle Database 19c Performance Tuning Guide - Managing Performance Through Baselines


NEW QUESTION # 27
Multiple sessions are inserting data concurrently into a table that has an LOB column.
At some point in time, one of the sessions cannot find available space in the LOB segment and needs to allocate a new extent.
Which wait event will be raised in the other sessions that need space in the LOB column?

  • A. enq: SQ - contention
  • B. enq: HW - contention
  • C. enq: TX - allocate ITL entry
  • D. enq: TM - contention

Answer: B

Explanation:
When sessions concurrently insert data into a table with an LOB column and one session needs to allocate a new extent because it cannot find available space, the wait event associated with this contention is "enq: HW - contention". The HW stands for High Water Mark which is related to space allocation in the database segment. When a session needs to allocate a new extent, it may raise this wait event in other sessions that are also attempting to allocate space in the same LOB segment.
References
* Oracle Database 19c Reference Guide - enq: HW - contention


NEW QUESTION # 28
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

Answer: A

Explanation:
For a Standard Edition production database, the Statspack tool is available to diagnose performance problems.
The Automatic Workload Repository (AWR) and its related tools like AWR Compare Periods report and SQL Performance Analyzer are features of the Oracle Database Enterprise Edition and are not available in Standard Edition. Database Replay is also a feature of the Enterprise Edition. Statspack is a performance diagnostic tool provided for earlier versions and Standard Editions of the Oracle Database to collect, store, and analyze performance data.
References
* Oracle Database 19c Administrator's Guide - Using Statspack to Diagnose Database Performance Issues


NEW QUESTION # 29
Examine these commands, which execute successfully:

Which statement is true?

  • A. ADDM, AWR, and ASH reports can be purged automatically.
  • B. AWR snapshots can be purged manually in pluggable databases.
  • C. AWR- snapshots in all pluggable databases will be purgedautomatically after every 60 mins.
  • D. AD DM is enabled for all pluggable databases.

Answer: B

Explanation:
TheDBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGSprocedure allows setting attributes related to AWR snapshots. While the interval setting controls the frequency of snapshot generation, purging them is a separate process that can be managed either automatically (with retention settings) or manually.References:
* Oracle Database PL/SQL Packages and Types Reference, 19c
* Oracle Multitenant Administrator's Guide, 19c


NEW QUESTION # 30
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