TrainingDump Offers Valid and Real 1z1-084 Oracle Database 19c Performance and Tuning Management Exam Questions

P.S. Free 2025 Oracle 1z1-084 dumps are available on Google Drive shared by TrainingDump: https://drive.google.com/open?id=1EN8FM96wz1wskMfpiJsDFPVA-c9xP-dH

In order to make the exam easier for every candidate, TrainingDump compiled such a study materials that allows making you test and review history performance, and then you can find your obstacles and overcome them. In addition, once you have used this type of 1z1-084 Exam Question online for one time, next time you can practice in an offline environment. It must be highest efficiently 1z1-084 exam tool to help you pass the exam.

The TrainingDump is one of the top-rated and renowned platforms that has been offering real and valid Oracle Database 19c Performance and Tuning Management (1z1-084) exam practice test questions for many years. During this long time period countless Oracle Database 19c Performance and Tuning Management (1z1-084) exam candidates have passed their dream certification and they are now certified Oracle professionals and pursuing a rewarding career in the market.

>> 1z1-084 Test Quiz <<

1z1-084 Certification Exam - 1z1-084 Exam Sample Online

Most candidates reflect our 1z1-084 test questions matches more than 90% with the real exam. We get information from special channel. If 1z1-084 exam change questions, we will get the first-hand real questions and our professional education experts will work out the right answers so that 1z1-084 Test Questions materials produce. If you are looking for valid & useful exam study materials, our products are suitable for you. We offer one year free updates for every buyer so that you can share latest 1z1-084 test questions within a year.

Oracle Database 19c Performance and Tuning Management Sample Questions (Q26-Q31):

NEW QUESTION # 26
Examine these statements and output:

What parameter change activates the generation and use of SQL Plan Directives7

A. optimizer_adaptive_plans=TRUE
B. optimizer_features_enable=12.2.0.1
C. optimizer_adaptive_statistics = TRUE
D. optimizer_capture_sql_plan_baselines_TRUE
E. optimizer_dynamic_sampling=11

Answer: C

Explanation:
The optimizer_adaptive_statistics parameter, when set to TRUE, enables the optimizer to use adaptive statistics, such as SQL Plan Directives, to help improve plans by automatically adjusting them based on the actual execution statistics.
References:
* Oracle Database SQL Tuning Guide, 19c

NEW QUESTION # 27
A database supporting a mixed workload is hosted on a server with 64 CPUs.
A large number of free buffer waits and buffer busy waits occur affecting performance.
The buffer cache size was then increased but after a few hours, the same wait events occur more often than before the change.
Examine these parameter settings:

Which two actions can help reduce the number of these waits7

A. increasing the value of DBWRITERPROCESSES to 64,
B. increasing the value of DB_FILE_MULTIBLOCK_READ_COUNT to 128
C. setting dbwr_io_slaves to 64
D. Increasing the size of MEMORYTARGET
E. reducing the values of DB_FILE_MULTILOCK_READ_COUNT to 64

Answer: A,C

Explanation:
Given a server with 64 CPUs, if the buffer cache size increase did not alleviate free buffer waits and buffer busy waits, one can look into optimizing I/O and the efficiency of the DB writer processes.
C: Setting the DBWR_IO_SLAVES parameter to a non-zero value, such as the number of CPUs, would initiate I/O slave processes to assist the DB writer process. This can help reduce I/O contention when writing from the buffer cache to disk, particularly for systems without asynchronous I/O capabilities.
D: Increasing the value of DBWRITERPROCESSES enables multiple DB writer processes to be active simultaneously. In a system with many CPUs, such as 64, increasing this value can improve the write throughput to disk and potentially reduce buffer busy waits.
References:
* Oracle Database Reference, 19c
* Oracle Database Performance Tuning Guide, 19c

NEW QUESTION # 28
Which two types of performance problems are reported by ADDM for PDBS?

A. Excessive checkpoint writes
B. User I/O waits
C. Top SQL statements
D. I/O capacity limits
E. SGA sizing issues

Answer: B,D

Explanation:
The Automatic Database Diagnostic Monitor (ADDM) analyzes and reports on various types of performance problems. For Pluggable Databases (PDBs), it can identify issues such as I/O capacity limits which may hinder the overall performance by causing bottlenecks. Additionally, ADDM can report on user I/O waits, which can indicate performance issues related to the time it takes for user queries to read data from the disk.
References:
* Oracle Multitenant Administrator's Guide, 19c
* Oracle Database Performance Tuning Guide, 19c

NEW QUESTION # 29
You must write a statement that returns the ten most recent sales. Examine this statement:

Users complain that the query executes too slowly. Examine the statement's current execution plan:

What must you do to reduce the execution time and why?

A. Replace the FETCH FIRST clause with ROWNUM to enable the use of an index on SALES.
B. Collect a new set of statistics on PRODUCT, CUSTOMERS, and SALES because the current stats are inaccurate.
C. Create an index on SALES.TIME_ID to force the return of rows in the order specified by the ORDER BY clause.
D. Create an index on SALES.CUST_ID to force an INDEX RANGE SCAN on this index followed by a NESTED LOOP join between CUSTOMERS and SALES.
E. Enable Adaptive Plans so that Oracle can change the Join method as well as the Join order for this query.

Answer: C

Explanation:
The execution plan shows a full table access for theSALEStable. To reduce the execution time, creating an index onSALES.TIME_IDwould be beneficial as it would allow the database to quickly sort and retrieve the most recent sales without the need to perform a full table scan, which is I/O intensive and slower. By indexing TIME_ID, which is used in theORDER BYclause, the optimizer can take advantage of the index to efficiently sort and limit the result set to the ten most recent sales.
* B (Incorrect):ReplacingFETCH FIRSTwithROWNUMwould not necessarily improve the performance unless there is an appropriate index that the optimizer can use to avoid sorting the entire result set.
* C (Incorrect):There is no indication that the current statistics are inaccurate; hence, collecting new statistics may not lead to performance improvement.
* D (Incorrect):While adaptive plans can provide performance benefits by allowing the optimizer to adapt the execution strategy, the main issue here is the lack of an index on theORDER BYcolumn.
* E (Incorrect):Creating an index onSALES.CUST_IDcould improve join performance but would not address the performance issue caused by the lack of an index on theORDER BYcolumn.
References:
* Oracle Database SQL Tuning Guide:Managing Indexes
* Oracle Database SQL Tuning Guide:Using Indexes and Clusters

NEW QUESTION # 30
You execute the following:
EXECUTE DBMS_AuTO_TASK_ADMIN.DISABLE;
Which advisor remains enabled?

A. Automatic Segment Advisor
B. Optimizer Statistics Advisor
C. Automatic SQL Tuning
D. SQL Plan Management Evolve Advisor
E. Automatic Optimizer Statistics Collection

Answer: E

Explanation:
When you executeDBMS_AUTO_TASK_ADMIN.DISABLE, it disables all automated maintenance tasks related to the Auto Task framework. This includes tasks such as the Automatic SQL Tuning Advisor, Automatic Segment Advisor, and others. However, the Automatic Optimizer Statistics Collection (D) remains enabled as it is not part of the Auto Task framework. The gathering of optimizer statistics is controlled separately and is a critical part of the database's self-tuning mechanism to ensure the optimizer has up-to-date information about the data distribution within tables and indexes.
References
* Oracle Database 19c PL/SQL Packages and Types Reference - DBMS_AUTO_TASK_ADMIN
* Oracle Database 19c Database Administrator's Guide - Managing Optimizer Statistics

NEW QUESTION # 31
......

As the tech industry continues to evolve and adapt to new technologies, professionals who hold the Oracle Database 19c Performance and Tuning Management (1z1-084) certification are better equipped to navigate these changes and stay ahead of the curve, increasing their value to employers and clients. In today's fast-paced and ever-changing Oracle sector, having the Oracle Database 19c Performance and Tuning Management (1z1-084) certification has become a necessary requirement for individuals looking to advance their careers and stay competitive in the job market.

1z1-084 Certification Exam: https://www.trainingdump.com/Oracle/1z1-084-practice-exam-dumps.html

Come to learn our 1z1-084 latest training material, Many candidates are very worried about 1z1-084 certifications since they know the pass rate of 1z1-084 certifications is low and the exam cost is expensive, Oracle 1z1-084 Test Quiz In the end, you will become an excellent talent, Use these tools for your help and guidance and then you will definitely be happy with the results of TrainingDump's 1z1-084 updated audio study guide and 1z1-084 from TrainingDump cbt f To have enjoyable and fantastic journey for the 1z1-084 latest computer based training you must trust the helping tools of TrainingDump which are made to deal with this purpose, Therefore, getting the test 1z1-084 certification is of vital importance to our future employment.

Faster is good in the realm of streaming audio, A sophisticated Twitter application will be aware of some of these bots and try to protect users, Come to learn our 1z1-084 Latest Training material.

Get Oracle 1z1-084 Real Questions and Save Your Valuable Time

Many candidates are very worried about 1z1-084 certifications since they know the pass rate of 1z1-084 certifications is low and the exam cost is expensive.

In the end, you will become an excellent talent, Use these tools for your help and guidance and then you will definitely be happy with the results of TrainingDump's 1z1-084 updated audio study guide and 1z1-084 from TrainingDump cbt f To have enjoyable and fantastic journey for the 1z1-084 latest computer based training you must trust the helping tools of TrainingDump which are made to deal with this purpose.

Therefore, getting the test 1z1-084 certification is of vital importance to our future employment.

BTW, DOWNLOAD part of TrainingDump 1z1-084 dumps from Cloud Storage: https://drive.google.com/open?id=1EN8FM96wz1wskMfpiJsDFPVA-c9xP-dH

Final Masterclass

Final Masterclass

Nick Jackson Nick Jackson

Biography

TrainingDump Offers Valid and Real 1z1-084 Oracle Database 19c Performance and Tuning Management Exam Questions

1z1-084 Certification Exam - 1z1-084 Exam Sample Online

Oracle Database 19c Performance and Tuning Management Sample Questions (Q26-Q31):

Get Oracle 1z1-084 Real Questions and Save Your Valuable Time