Rick Shaw Rick Shaw's Profile Page

Rick Shaw Rick Shaw

0 Course Enrolled • 0 Course Completed

Biography

Valid Dumps 1z1-084 Questions Exam Pass Certify | Oracle 1z1-084: Oracle Database 19c Performance and Tuning Management

BONUS!!! Download part of Prep4sures 1z1-084 dumps for free: https://drive.google.com/open?id=1u7uSKvuoIC05SBNKX3b1DWnorKXqByhn

If you buy our 1z1-084 preparation questions, we can promise that you can use our study materials for study in anytime and anywhere. Because our study system can support you study when you are in an offline state. In addition, Our 1z1-084 training quiz will be very useful for you to improve your learning efficiency, because you can make full use of your all spare time to do test. It will bring a lot of benefits for you beyond your imagination if you buy our 1z1-084 Study Materials.

It will improve your skills to face the difficulty of the 1z1-084 exam questions and accelerate the way to success in IT filed with our latest study materials. Free demo of our 1z1-084 dumps pdf can be downloaded before purchase and 24/7 customer assisting support can be access. Well preparation of 1z1-084 Practice Test will be closer to your success and get authoritative certification easily.

>> Valid Dumps 1z1-084 Questions <<

100% Pass 2025 Oracle 1z1-084: Newest Valid Dumps Oracle Database 19c Performance and Tuning Management Questions

In this Desktop-based Oracle 1z1-084 practice exam software, you will enjoy the opportunity to self-exam your preparation. The chance to customize the Oracle Database 19c Performance and Tuning Management (1z1-084) practice exams according to the time and types of Oracle Database 19c Performance and Tuning Management (1z1-084) practice test questions will contribute to your ease. This format operates only on Windows-based devices. But what is helpful is that it functions without an active internet connection. It copies the exact pattern and style of the real Oracle 1z1-084 Exam to make your preparation productive and relevant.

Oracle 1Z0-084 exam covers a wide range of topics, including performance analysis and tuning, resource management, and database monitoring. Candidates are expected to demonstrate their knowledge of best practices for tuning database performance, as well as their ability to identify and resolve performance issues in Oracle Database 19c.

Oracle Database 19c Performance and Tuning Management Sample Questions (Q19-Q24):

NEW QUESTION # 19
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: D

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 # 20
You need to collect and aggregate statistics for the ACCTG service and PAYROLL module, and execute:

Where do you find the output of this command?

A. In $ORACLE_BASE/diag/rdbms/<db unique name>/<instance name>/trace
B. By viewing V$SERVICE_STATS
C. In the current working directory
D. By viewing V$SERV_MOD_ACT_STATS

Answer: D

Explanation:
When you enable statistics gathering for a specific service and module using DBMS_MONITOR.SERV_MOD_ACT_STAT_ENABLE, the output is aggregated and can be viewed using theV$SERV_MOD_ACT_STATSdynamic performance view. This view contains the cumulative statistics of database activity broken down by service and module, which is exactly what you collect when executing the provided command.
* B (Incorrect):While many types of trace files are located in the Diagnostic Destination directory (
$ORACLE_BASE/diag), the aggregated statistics for services and modules are not written to trace files but are instead viewable through dynamic performance views.
* C (Incorrect):TheV$SERVICE_STATSview provides service-level statistics but does not provide the
* combined service/module-level breakdown.
* D (Incorrect):The output of the PL/SQL block is not written to a file in the current working directory; it is stored in the data dictionary and accessible via dynamic performance views.
References:
* Oracle Database PL/SQL Packages and Types Reference:DBMS_MONITOR
* Oracle Database Reference:V$SERV_MOD_ACT_STATS

NEW QUESTION # 21
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: HW - contention
C. enq: TX - allocate ITL entry
D. enq: SQ - contention

Answer: B

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 asession 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 # 22
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. Increase PCTFREE for the SALES table.
B. Re-create the SALES table.
C. Compress the SALES table.
D. Partition the SALES table.
E. Coalesce all sales table indexes.

Answer: C,D

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 # 23
Which two statements are true about disabling Automatic Shared Memory Management (ASMM)?

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

Answer: A,C

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 # 24
......

Fantasy can make people to come up with many good ideas, but it can not do anything. So when you thinking how to pass the Oracle 1z1-084 Exam, It's better open your computer, and click the website of Prep4sures, then you will see the things you want. Prep4sures's products have favorable prices, and have quality assurance, but also to ensure you to 100% pass the exam.

1z1-084 Pdf Torrent: https://www.prep4sures.top/1z1-084-exam-dumps-torrent.html

BTW, DOWNLOAD part of Prep4sures 1z1-084 dumps from Cloud Storage: https://drive.google.com/open?id=1u7uSKvuoIC05SBNKX3b1DWnorKXqByhn

Rick Shaw Rick Shaw

Biography

Support