Job Skills Training

Arthur Green Arthur Green

0 Course Enrolled • 0 Course Completed

Biography

New 1Z0-084 Test Bootcamp | 1Z0-084 Valid Test Pdf

BTW, DOWNLOAD part of ValidVCE 1Z0-084 dumps from Cloud Storage: https://drive.google.com/open?id=1mi1YkXqqXVZa_q32uduKuHRdZ2p87R2G

We are dedicated to helping you pass your exam just one time. 1Z0-084 learning materials are high quality, and we have received plenty of good feedbacks from our customers, they thank us for helping the exam just one time. If you can’t pass your exam in your first attempt by using 1Z0-084 exam materials of us, we ensure you that we will give you full refund, and no other questions will be asked. In addition, we provide you with free demo for one year for 1Z0-084 Exam Braindumps, and the update version for 1Z0-084 exam materials will be sent to your email address automatically.

Oracle 1Z0-084 is a certification exam that tests the performance and tuning management skills of individuals working with Oracle Database 19c. 1Z0-084 exam is designed to assess the knowledge and understanding of the concepts and practices used in managing and optimizing the performance of Oracle databases. Candidates who Pass 1Z0-084 Exam earn the Oracle Database 19c Performance and Tuning Management Certified Expert credential.

>> New 1Z0-084 Test Bootcamp <<

Oracle 1Z0-084 Valid Test Pdf | Valid 1Z0-084 Test Prep

Our technology and our staff are the most professional. What are the 1Z0-084 practice materials worthy of your choice, I hope you spend a little time to find out. First of all, after you make a decision, you can start using our 1Z0-084 Exam Questions soon. We will send you an email within five to ten minutes after your payment is successful. You can choose any version of 1Z0-084 study guide, as long as you find it appropriate.

To obtain the Oracle 1Z0-084 Certification, candidates must have a strong foundational understanding of Oracle Database 19c and be proficient in performance tuning and management techniques. 1Z0-084 exam consists of 70 multiple-choice questions and must be completed within 105 minutes. The passing score for the exam is 63% and candidates must also agree to the Oracle Certification Program policies before receiving their certification.

Oracle Database 19c Performance and Tuning Management Sample Questions (Q21-Q26):

NEW QUESTION # 21
The CURS0R_SHARING and OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES parameters are set to default. The top five wait events in an awr report are due to a large number of hard parses because of several almost identical SQL statements.
Which two actions could reduce the number of hard parses?

A. Set OPTIMIZER_CAPTURE_SQL_PLAN_BASELINESto TRUE.
B. Create the KEEP cache and cache tables accessed by the SQL statements.
C. Create the RECYCLE cache and cache tables accessed by the SQL statements.
D. Set the CURSOR_SHARING parameter to FORCE.
E. Increase the size of the library cache.

Answer: D,E

Explanation:
To reduce the number of hard parses due to several almost identical SQL statements, you can take the following actions:
* C (Correct):Increasing the size of the library cache can help reduce hard parses by providing more
* memory to store more execution plans. This allows SQL statements to be shared more effectively.
* E (Correct):Setting theCURSOR_SHARINGparameter toFORCEwill cause Oracle to replace literals in SQL statements with bind variables, which can significantly reduce the number of hard parses by making it more likely that similar SQL statements will share the same execution plan.
The other options do not directly impact the number of hard parses:
* A (Incorrect):Creating the KEEP cache and caching tables accessed by the SQL statements can improve performance for those tables, but it does not directly reduce the number of hard parses.
* B (Incorrect):Creating the RECYCLE cache and caching tables accessed by the SQL statements can make it more likely that objects will be removed from the cache quickly, which does not help with hard parse issues.
* D (Incorrect):SettingOPTIMIZER_CAPTURE_SQL_PLAN_BASELINEStoTRUEcan help stabilize SQL execution plans but will not reduce the number of hard parses. This parameter is used to automatically capture SQL plan baselines for repeatable SQL statements, which can prevent performance regressions due to plan changes.
References:
* Oracle Database Performance Tuning Guide:Minimizing Hard Parses
* Oracle Database SQL Tuning Guide:CURSOR_SHARING

NEW QUESTION # 22
Examine this statement and output:

Which three statements are true?

A. Session 8779 may be waiting for a user or application response.
B. Session 9822 will always stop waiting if the session that owns the TX enqueue issues a COMMIT statement as session 9822 is the first session in the transaction queue.
C. Both 9822 and 8779 sessions are waiting for operating system resources.
D. Session 9857 waited 1354 seconds for another process, which was also waiting for a transaction to end.
E. Session 9857 is not waiting.
F. Session 8779 may be waiting due to a network problem.

Answer: A,B,F

Explanation:
For this SQL statement and output, we can analyze theEVENTcolumn to understand the type of wait:
B: The event "SQL*Net message from client" typically indicates that the session is waiting for a response from the client. This can be due to a network issue, user response, or an application processing delay.
E: The event "SQL*Net message from client" also implies that the session is idle waiting for the client (a user or an application) to send a request to the server. This event usually indicates that the session is not actively working but is instead waiting for the next command.
F: The wait event "enq: TX - row lock contention" suggests that session 9822 is waiting for a row-level lock held by another session. If the holding session issues a COMMIT or ROLLBACK, the lock will be released, and session 9822 will stop waiting. Since this session is experiencing row lock contention, it implies it's waiting for a specific transaction to complete.
References:
* Oracle Database Reference, 19c
* Oracle Wait Events Documentation

NEW QUESTION # 23
Which two Oracle Database features use database services?

A. Oracle Automatic Reoptimization
B. Oracle SQL Performance Management
C. Oracle SQL Tuning Advisor
D. Oracle Scheduler
E. Database Resource Manager

Answer: D,E

Explanation:
Database services in Oracle are used to manage how resources are allocated and how workloads are managed within the database. The features that use database services are:
* B (Correct):Database Resource Manager (DBRM) uses services to control resource allocation to different workloads. It ensures that resources are assigned to the most critical tasks first, based on the service associated with the workload.
* E (Correct):Oracle Scheduler can also utilize database services. Jobs in Oracle Scheduler can be assigned to different services to control resource allocation and prioritization.
The other features mentioned are related to SQL performance but do not directly utilize database services in the way Resource Manager and Scheduler do:
* A:Oracle Automatic Reoptimization is a feature that allows the database to automatically improve the execution plan of a SQL statement after it is executed, based on the actual performance metrics, but it does not directly use database services.
* C:Oracle SQL Performance Management involves various components of SQL tuning and monitoring, but it does not use database services to operate.
* D:Oracle SQL Tuning Advisor provides advice on how to tune SQL queries for better performance.
While it can be used in conjunction with services for managing and analyzing workloads, it doesn't use services in its core functionality.
References:
* Oracle Database Administrator's Guide:Administering Services
* Oracle Database Administrator's Guide:Managing Resources with Oracle Database Resource Manager
* Oracle Database Scheduler Developer's Guide:Using the Scheduler

NEW QUESTION # 24
Which two options are part of a Soft Parse operation?

A. Semantic Check
B. Shared Pool Memory Allocation
C. SQL Optimization
D. Syntax Check
E. SQL Row Source Generation

Answer: A

Explanation:
During a soft parse, Oracle checks the shared SQL area to see if an incoming SQL statement matches one already in the shared pool. This operation includes syntax and semantic checks. The syntax check ensures the statement is properly formed, and the semantic check confirms that all the objects referenced in the SQL statement exist and that the user has the necessary privileges to access them.References:
* Oracle Database Concepts, 19c
* Oracle Database SQL Tuning Guide, 19c

NEW QUESTION # 25
Examine this statement and output:

Which two situations can trigger this error?

A. The instance is unable to access the capture directory.
B. The capture directory is part of the root file system.
C. There is a file in the capture directory.
D. The syntax is incomplete.
E. The user lacks the required privileges to execute the DBMS WORKLOAD CAPTURE package or the directory.

Answer: A,E

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 # 26
......

1Z0-084 Valid Test Pdf: https://www.validvce.com/1Z0-084-exam-collection.html

P.S. Free 2025 Oracle 1Z0-084 dumps are available on Google Drive shared by ValidVCE: https://drive.google.com/open?id=1mi1YkXqqXVZa_q32uduKuHRdZ2p87R2G

Cookie	Duration	Description
cookielawinfo-checkbox-analytics	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional	11 months	The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy	11 months	The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.

Arthur Green Arthur Green

Biography

COOKIE NOTICE