Reliable 1z1-084 Test Sample & 1z1-084 Latest Test Cram
It is really a tough work to getting 1z1-084 certification in their spare time because preparing actual exam dumps needs plenty time and energy. As the one of certification exam dumps provider, BootcampPDF enjoys a high popularity for its profession of 1z1-084 Exam Dumps and training materials. You will get high passing score in test with the help of our 1z1-084 braindumps torrent.
Candidates who pass the Oracle 1Z0-084 exam will earn the Oracle Certified Professional, Oracle Database 19c Performance and Tuning Management certification. Oracle Database 19c Performance and Tuning Management certification validates the candidates’ expertise in database performance management and tuning, and demonstrates their ability to optimize the performance of Oracle Database 19c. Oracle Database 19c Performance and Tuning Management certification is recognized globally, and can improve the candidate’s career prospects by demonstrating their proficiency in performance tuning and management.
Oracle 1Z0-084 certification exam is intended for IT professionals who work with Oracle databases on a regular basis. This includes database administrators, performance analysts, and other IT professionals who are responsible for ensuring the optimal performance of Oracle databases. By earning this certification, these professionals can demonstrate to their employers and clients that they have the knowledge and skills required to manage and optimize Oracle databases.
>> Reliable 1z1-084 Test Sample <<
Oracle 1z1-084 Latest Test Cram - Real 1z1-084 Braindumps
It is our company that can provide you with special and individual service which includes our 1z1-084 preparation quiz and good after-sale services. Our experts will check whether there is an update on the question bank every day, so you needn’t worry about the accuracy of study materials. If there is an update system, we will send them to the customer automatically. As is known to all, our 1z1-084 simulating materials are high pass-rate in this field, that's why we are so famous. If you are still hesitating, our 1z1-084 exam questions should be wise choice for you.
Oracle Database 19c Performance and Tuning Management Sample Questions (Q14-Q19):
NEW QUESTION # 14
During which application lifecycle phase do you take baselines?
Answer: D
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 # 15
Buffer cache access is too frequent when querying the SALES table. Examine this command which executes successfully:
ALTER TABLE SALES SHRINK SPACE;
For which access method does query performance on sales improve?
Answer: C
Explanation:
The SHRINK SPACE operation compacts the table, which can reduce fragmentation and thus improve performance for sequential reads of the table. This operation could improve full table scans, which are typically associated with db file sequential read wait events.
References:
* Oracle Database Administrator's Guide, 19c
NEW QUESTION # 16
Examine these commands, which execute successfully:
Which statement is true?
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 # 17
Examine this statement and output:
Which two situations can trigger this error?
Answer: C,D
Explanation:
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.
References:
* Oracle Database Error Messages, 19c
* Oracle Database Administrator's Guide, 19c
NEW QUESTION # 18
You manage a 19c database with default optimizer settings.
This statement is used extensively as subquery in the application queries:
SELECT city_id FROM sh2.sales WHERE city_id=:Bl
You notice the performance of these queries is often poor and, therefore, execute:
SELECT city_id,COUNT(*) FROM sh2.sales GROUP BY city_id;
Examine the results:
There is no index on the CITY_ID column.
Which two options improve the performance?
Answer: C,E
Explanation:
In this scenario, creating an index and generating frequency histograms are two methods that can potentially improve performance:
* A (Correct):Generating frequency histograms on theCITY_IDcolumn can help the optimizer make better decisions regarding the execution plan, especially if the data distribution is skewed. Histograms provide the optimizer with more detailed information about the data distribution in a column, which is particularly useful for columns with non-uniform distributions.
* B (Correct):Creating an index on theCITY_IDcolumn would speed up queries that filter on this column, especially if it's used frequently in the WHERE clause as a filter. An index would allow for an index range scan instead of a full table scan, reducing the I/O and time needed to execute such queries.
* C (Incorrect):While SQL profiles can be used to improve the performance of specific SQL statements, they are usually not the first choice for such a problem, and creating a profile does not replace the need for proper indexing or statistics.
* D (Incorrect):Forcing the subquery to use dynamic sampling might not provide a consistent performance benefit, especially if the table statistics are not representative or are outdated. However, dynamic sampling is not as effective as having accurate statistics and a well-chosen index.
* E (Incorrect):Adaptive plans can adjust the execution strategy based on the conditions at runtime.
While they can be useful in certain scenarios, in this case, creating an index and ensuring accurate statistics would likely provide a more significant performance improvement.
References:
* Oracle Database SQL Tuning Guide:Managing Optimizer Statistics
* Oracle Database SQL Tuning Guide:Using Indexes and Clusters
NEW QUESTION # 19
......
When you are struggling with those troublesome reference books; when you feel helpless to be productive during the process of preparing different exams; when you have difficulty in making full use of your sporadic time and avoiding procrastination. No other 1z1-084 study materials or study dumps can bring you the knowledge and preparation that you will get from the 1z1-084 Study Materials available only from BootcampPDF. Not only will you be able to pass any 1z1-084 test, but will gets higher score, if you choose our 1z1-084 study materials.
1z1-084 Latest Test Cram: https://www.bootcamppdf.com/1z1-084_exam-dumps.html