Gus Fox Gus Fox's Profile Page

Gus Fox Gus Fox

0 Course Enrolled • 0 Course Completed

Biography

100% Free 1z1-084–100% Free Valid Dumps Questions | High-quality Oracle Database 19c Performance and Tuning Management Best Study Material

BTW, DOWNLOAD part of BraindumpsPass 1z1-084 dumps from Cloud Storage: https://drive.google.com/open?id=1wHYf0JTlBloTxQaFCGZoWSXJfFqQd_ZA

1z1-084 questions & answers are valid, covering the whole chapter in the actual test and the key points. You can take 1z1-084 pdf torrent as your study reference.After you get the 1z1-084 exam dumps, do not worry about the update, because one year free update is provided to you. Please pay attention to your payment email and check if there is any 1z1-084 Updated Dumps. Dear, if you have any questions about 1z1-084 study torrent, you can contact us by email or online chat as you like. In addition, we have money back guarantee, in case of failure, we will give you full refund.

Oracle 1Z0-084 exam is a computer-based test that consists of 60 multiple-choice questions. Candidates have 120 minutes to complete the exam, and they must score at least 63% to pass. 1z1-084 exam fee is $245, and candidates can take the exam at any Pearson VUE testing center worldwide. Oracle recommends that candidates have at least three years of experience in database performance and tuning management before taking 1z1-084 exam.

Oracle 1Z0-084 Certification Exam covers all aspects of Oracle Database 19c Performance and Tuning Management, including the most effective tuning methodologies, tools, and techniques used to optimize the database performance. 1z1-084 exam validates a candidate’s ability to identify and understand the underlying problems in a database and provide the best solution to solve them. Oracle Database 19c Performance and Tuning Management certification exam helps professionals to develop their skill set and their ability to effectively tune and optimize databases in any real-world scenario.

Oracle 1Z0-084 Certification Exam is a computer-based test that consists of 70 multiple-choice questions. The candidate is given a time limit of 105 minutes to complete the exam. 1z1-084 Exam Questions are designed to test the candidate's knowledge in performance and tuning management of Oracle Database 19c. 1z1-084 exam covers topics such as database architecture, SQL tuning, performance analysis, and performance tuning best practices.

>> 1z1-084 Valid Dumps Questions <<

Free PDF 2025 Oracle Perfect 1z1-084 Valid Dumps Questions

We have been developing our 1z1-084 practice engine for many years. We have no doubt about our quality of the 1z1-084 exam braindumps. Our experience is definitely what you need. And especially our professional experts have been devoting in this field for over ten years. I believe no one can know the 1z1-084 training guide than them. To combine many factors, 1z1-084 real exam must be your best choice.

Oracle Database 19c Performance and Tuning Management Sample Questions (Q38-Q43):

NEW QUESTION # 38
Examine this statement and output:

Which two situations can trigger this error?

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

Answer: B,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 # 39
Examine this command:

What is the maximum number of baselines generated by this command that you can have at any given time?

A. 0
B. 1
C. 2
D. 3

Answer: C

Explanation:
The DBMS_WORKLOAD_REPOSITORY.CREATE_BASELINE_TEMPLATE procedure is used to create a repeating baseline template in the Automatic Workload Repository (AWR). This template will generate baselines for a specified duration of time on a repeating schedule. The parameters of the CREATE_BASELINE_TEMPLATE procedure include the start and end times, as well as the day of the week and hour in the day when the baseline should be captured.
Given that the command specifies a repeating baseline every Monday at 5 PM with a duration of 3 hours and it expires after 30 days, the number of baselines generated by this command that you can have at any given time depends on how many Mondays fall within the most recent 30-day period.
Since the maximum number of Mondays that can occur within any 30-day period is 5 (four to five weeks), but considering the baseline has a duration of 3 hours and starts every Monday at 5 PM, only one baseline for each Monday can exist at a time. However, since baselines are preserved for 30 days, you could have multiple instances of Monday baselines preserved at a time.
* A (Incorrect): There can be more than one baseline at a time because the template will generate a baseline for every Monday during the 30-day expiration period.
* B (Incorrect): There will be more than three baselines because the template creates a baseline for every Monday within the 30-day expiration period.
* C (Correct): Over a 30-day period, considering the duration of the baselines and their frequency, you could have up to a maximum of 52 baselines if you consider the entire year.
* D (Incorrect): There is no option that restricts the number of baselines to 5 specifically, the answer relies on the calculation of how many baselines can exist over a period of time considering their expiration.
References:
* Oracle Database PL/SQL Packages and Types Reference: DBMS_WORKLOAD_REPOSITORY

NEW QUESTION # 40
Accessing the SALES tables causes excessive db file sequential read wait events.
Examine this AWR except:

Now, examine these attributes displayed by querying dba_tables:

Finally, examine these parameter settings:

Which two must both be used to reduce these excessive waits?

A. Coalesce all sales table indexes.
B. Re-create the SALES table.
C. Partition the SALES table.
D. Increase PCTFREE for the SALES table.
E. Compress the SALES table.

Answer: C,E

Explanation:
The AWR excerpt points to excessive physical reads on the SALES table and index, suggesting the need for optimizing table storage and access.
Partitioning the SALES table (A) can reduce 'db file sequential read' waits by breaking down the large SALES table into smaller, more manageable pieces. This can localize the data and reduce the I/O necessary for query operations.
Compressing the SALES table (D) can also help reduce I/O by minimizing the amount of data that needs to be read from disk. This can also improve cache utilization and reduce the 'db file sequential read' waits.
References:
* Oracle Database VLDB and Partitioning Guide, 19c
* Oracle Database Administrator's Guide, 19c
These changes are recommended based on Oracle's best practices for managing large tables and reducing I/O waits, ensuring better performance and efficiency.

NEW QUESTION # 41
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: TM - contention
B. enq: SQ - contention
C. enq: TX - allocate ITL entry
D. enq: HW - contention

Answer: D

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 # 42
What is the right time to stop tuning an Oracle database?

A. When the buffer cache and library cache hit ratio is above 95%
B. When the I/O is less than 10% of the DB time
C. When the tuning goal has been met
D. When the allocated budget for performance tuning has been exhausted
E. When all the concurrency waits are eliminated from the Top 10

Answer: C

Explanation:
The objective of performance tuning in Oracle Database is to meet specific performance goals. These goals may vary based on the requirements of the system and business objectives. Let's evaluate each option in detail to understand why E is correct and others are not.
Option Analysis:
* A. When the allocated budget for performance tuning has been exhausted
* Why it's incorrect:
* Tuning should not stop simply because the budget is exhausted. If performance goals are not met, the database might still experience performance issues, impacting the end-users or business-critical processes. Budget is a constraint, but it shouldn't define when tuning stops.
* B. When all the concurrency waits are eliminated from the Top 10
* Why it's incorrect:
* Concurrency waits (such as locks or latches) are just one aspect of database performance tuning. Eliminating these waits does not necessarily mean the system meets its performance goals. Other factors like query optimization, I/O performance, and CPU usage might still need attention.
* C. When the buffer cache and library cache hit ratio is above 95%
* Why it's incorrect:
* Cache hit ratios are often overemphasized as a performance metric. While a high hit ratio indicates efficient memory usage, it doesn't guarantee optimal performance. A high ratio could still mask inefficient SQL queries, suboptimal execution plans, or other bottlenecks.
* D. When the I/O is less than 10% of the DB time
* Why it's incorrect:
* While reducing I/O is beneficial, it is not always a sufficient indicator that tuning can stop.
Certain workloads may inherently have high or low I/O percentages. The real question is whether the database is meeting its required service levels, not just reducing I/O.
* E. When the tuning goal has been met
* Why it's correct:
* The purpose of performance tuning is to meet the specific performance goals set by the business or the database administrators. Once the database meets these goals (e.g., query response times, throughput requirements, or SLA commitments), tuning can stop. This ensures effort is focused on achieving measurable outcomes, rather than chasing arbitrary metrics.
The Importance of Defining a Tuning Goal
Performance tuning should be driven by clear goals such as:
* Reducing response time for specific critical queries.
* Meeting SLAs for application performance.
* Supporting a target number of concurrent users.
* Reducing resource contention for improved scalability.
Tuning should stop once these goals are achieved because continuous tuning without purpose can lead to unnecessary complexity and resource usage.
Reference to Oracle Documentation:
* Oracle Database 19c Performance Tuning Guide:
* Section: Establishing Performance Goals and Metrics.
* Discussion on focusing tuning efforts on business requirements and goals.
* Oracle Database Concepts Guide:
* Best practices for balancing performance improvements with system complexity.

NEW QUESTION # 43
......

Before making a final purchase decision, customers of BraindumpsPass can download a free demo to test the validity of the Oracle Database 19c Performance and Tuning Management (1z1-084) exam questions we offer. If the 1z1-084 certification test's topics change after you have purchased our 1z1-084 Dumps, we will provide you with free updates for up to 365 days. We guarantee the authenticity of our test questions and pledge to help you prepare for Oracle 1z1-084 exam quickly and cost-effectively.

1z1-084 Best Study Material: https://www.braindumpspass.com/Oracle/1z1-084-practice-exam-dumps.html

What's more, part of that BraindumpsPass 1z1-084 dumps now are free: https://drive.google.com/open?id=1wHYf0JTlBloTxQaFCGZoWSXJfFqQd_ZA

Gus Fox Gus Fox

Biography

Quick Links

Resources

Support