1Z0-084 Latest Torrent | 1Z0-084 Test Dates

Rated:

, 0 Comments

Total visits: 7

Posted on: 04/09/25

BTW, DOWNLOAD part of PracticeDump 1Z0-084 dumps from Cloud Storage: https://drive.google.com/open?id=1wyU3eCJcCxNvqX3pua_YkelPz5qrGM0T

Now on the Internet, a lot of online learning platform management is not standard, some web information may include some viruses, cause far-reaching influence to pay end users and adverse effect. If you purchase our 1Z0-084 test torrent this issue is impossible. We hire experienced staff to handle this issue perfectly. We are sure that our products and payment process are surely safe and anti-virus. If you have any question about downloading and using our 1Z0-084 Study Tool, we have professional staff to remotely handle for you immediately, let users to use the Oracle Database 19c Performance and Tuning Management guide torrent in a safe environment, bring more comfortable experience for the user.

For Oracle aspirants wishing to clear the Oracle test and become a Oracle Database 19c Performance and Tuning Management certification holder, PracticeDump Oracle 1Z0-084 practice material is an excellent resource. By preparing with PracticeDump actual Oracle 1Z0-084 Exam Questions, you can take get success on first attempt and take an important step toward accelerating your career. Download updated 1Z0-084 exam questions today and start preparation.

>> 1Z0-084 Latest Torrent <<

Excellent 1Z0-084 Latest Torrent Offers Candidates Well-Prepared Actual Oracle Oracle Database 19c Performance and Tuning Management Exam Products

As everybody knows, competitions appear ubiquitously in current society. In order to live a better live, people improve themselves by furthering their study, as well as increase their professional 1Z0-084 skills. With so many methods can boost individual competitiveness, people may be confused, which can really bring them a glamorous work or brighter future? We are here to tell you that a 1Z0-084 Certification definitively has everything to gain and nothing to lose for everyone.

Oracle Database 19c Performance and Tuning Management Sample Questions (Q31-Q36):

NEW QUESTION # 31
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?

A. Use a SQL Profile to enforce the appropriate plan.
B. Force the subquery to use dynamic sampling.
C. Generate frequency histograms on the CITY__ID column.
D. Create an index on the CITY IP column.
E. Activate the adaptive plans.

Answer: C,D

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 # 32
18. The application provider has given full indications regarding the procedure to collect statistics.
To reduce the space used in the SYSAUX tablespace, you want to prevent the optimizer statistics Advisor from running.
Which method will allow you to do this?

A. Set the parameter OPTIMIZER_ADAPTIVE_STATISTICS to FALSE.
B. Set the AUTO_STATS_ADVISOR_TASK global statistics preference to FALSE.
C. Use DBMS STATS.DROP ADVISOR TASK to drop the AUTO_STATS_ADVISOR_TASK task.
D. Use DBMS_AUTO_TASK_ADMIN. DISABLE to disable the AUTO_STATS_ADVISOR_TASK task.

Answer: D

Explanation:
The Oracle Optimizer statistics advisor, which is part of the automated tasks framework, can be disabled using the DBMS_AUTO_TASK_ADMIN package. This will prevent it fromrunning and thus reduce space usage in the SYSAUX tablespace.References:
* Oracle Database PL/SQL Packages and Types Reference, 19c

NEW QUESTION # 33
Examine this statement and its corresponding execution plan:

Which phase introduces the CONCATENATION step?

A. SQL Execution
B. SQL Row Source Generation
C. SQL Semantic Check
D. SQL Adaptive Execution
E. SQL Transformation

Answer: E

Explanation:
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.
References:
* Oracle Database SQL Tuning Guide, 19c
* Oracle Database Concepts, 19c

NEW QUESTION # 34
Which two statements are true about disabling Automatic Shared Memory Management (ASMM)?

A. The SGA size remains unaffected after disabling ASMM.
B. It requires a database instance restart to take effect.
C. All SGA components excluding fixed SGA and other internal allocations are readjusted immediately after disabling ASMM.
D. All SGA components retain their current sizes at the time of disabling.
E. Both SGA_TARGET and SGA_MAX_SIZE must be set to zero.
F. All auto-tuned SGA components are reset to their original user-defined values.

Answer: A,D

Explanation:
When ASMM is disabled, the sizes of the automatically managed SGA components remain at their current values. ASMM is controlled by the SGA_TARGET parameter. If SGA_TARGET is set to a non-zero value, ASMM is enabled and Oracle will automatically manage the sizes of the various SGA components. When ASMM is disabled, by setting SGA_TARGET to zero, the SGA components that were automatically sized will retain their current sizes rather than being reset to their original user-defined values. The overall size of the SGA remains the same unless manually changed by modifying individual component sizes or SGA_MAX_SIZE.
References:
* Oracle Database Administration Guide, 19c
* Oracle Database Performance Tuning Guide, 19c

NEW QUESTION # 35
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: HW - contention
B. enq: SQ - contention
C. enq: TX - allocate ITL entry
D. enq: TM - contention

Answer: A

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 # 36
......

It is not easy for you to make a decision of choosing the 1Z0-084 study materials from our company, because there are a lot of study materials about the exam in the market. However, if you decide to buy the 1Z0-084 study materials from our company, we are going to tell you that it will be one of the best decisions you have made in recent years. As is known to us, the 1Z0-084 Study Materials from our company are designed by a lot of famous experts and professors in the field.

1Z0-084 Test Dates: https://www.practicedump.com/1Z0-084_actualtests.html

People who don't study with updated Oracle 1Z0-084 practice questions fail the test and lose their resources, It is important to mention here that the 1Z0-084 practice questions played important role in their Oracle Certification Exams preparation and their success, Oracle 1Z0-084 Latest Torrent So now, it is right, you come to us, It can be said that our 1Z0-084 study questions are the most powerful in the market at present, not only because our company is leader of other companies, but also because we have loyal users.

In fact, as perverse as this may seem, some schools have jacked 1Z0-084 up their prices to attract affluent families who assume that if the cost isn't exorbitant, the school must not be any good.

If Show Text in Icons the first option) is enabled, it will preview some of the contents of text documents in their icons, People who don't study with updated Oracle 1Z0-084 Practice Questions fail the test and lose their resources.

Free PDF Quiz 2025 Newest Oracle 1Z0-084 Latest Torrent

It is important to mention here that the 1Z0-084 practice questions played important role in their Oracle Certification Exams preparation and their success.

So now, it is right, you come to us, It can be said that our 1Z0-084 study questions are the most powerful in the market at present, not only because our company is leader of other companies, but also because we have loyal users.

Someone tell you it's hard to pass Oracle Database 19c Performance and Tuning Management exam?

P.S. Free & New 1Z0-084 dumps are available on Google Drive shared by PracticeDump: https://drive.google.com/open?id=1wyU3eCJcCxNvqX3pua_YkelPz5qrGM0T

Tags: 1Z0-084 Latest Torrent, 1Z0-084 Test Dates, Exam 1Z0-084 Guide, Authorized 1Z0-084 Test Dumps, New 1Z0-084 Test Voucher

Comments

There are still no comments posted ...

Rate and post your comment

Username:
Password:
Forgotten password?

Most Popular

1Z0-084 Latest Torrent | 1Z0-084 Test Dates

Excellent 1Z0-084 Latest Torrent Offers Candidates Well-Prepared Actual Oracle Oracle Database 19c Performance and Tuning Management Exam Products

Oracle Database 19c Performance and Tuning Management Sample Questions (Q31-Q36):

Free PDF Quiz 2025 Newest Oracle 1Z0-084 Latest Torrent

Login