Verified 1z1-084 Dumps Q&As – 1z1-084 Test Engine with Correct Answers [Q13-Q29]

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Verified 1z1-084 Dumps Q&As – 1z1-084 Test Engine with Correct Answers

Pass Your 1z1-084 Dumps as PDF Updated on 2025 With 57 Questions

Oracle 1Z0-084 Certification Exam is an important certification for IT professionals who want to validate their skills and knowledge in Oracle Database 19c performance and tuning management. 1z1-084 exam is designed to test the candidate’s understanding of the Oracle Database 19c performance tuning concepts, best practices, and tools. It is also designed to validate the candidate’s ability to analyze the database performance issues and suggest the best tuning solutions.

Oracle 1Z0-084 exam consists of 60 multiple-choice questions that must be completed within 105 minutes. 1z1-084 exam is highly focused on performance and tuning management, and the questions are designed to test the candidate’s ability to identify and troubleshoot performance issues in an Oracle database. Successful completion of this certification exam demonstrates a candidate’s proficiency in database performance and tuning management, making them a valuable asset to any organization that uses Oracle database 19c. Oracle Database 19c Performance and Tuning Management certification is recognized globally and can greatly enhance a professional’s career opportunities and earning potential.

NEW QUESTION 13
This error occurred more than four hours ago in the database:
ORA-04036 PGA memory used by theinstance exceedsPGA_AGGREGATE_LIMIT
You want to know which process and query were at fault.
Which two views should you use for this purpose?

DBA_HIST_ACTIVE_SESS_HISTORY

DBA_HIST_SQLSTAT

DBA_HIST_SQLTEXT

DBA_HIST_PGASTAT

DBA_HIST_PROCESS_MEM_SUMMARY

NEW QUESTION 14
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

increasing the value of DB_FILE_MULTIBLOCK_READ_COUNT to 128

Increasing the size of MEMORYTARGET

setting dbwr_io_slaves to 64

increasing the value of DBWRITERPROCESSES to 64,

reducing the values of DB_FILE_MULTILOCK_READ_COUNT to 64

NEW QUESTION 15
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?

By viewing V$SERV_MOD_ACT_STATS

In $ORACLE_BASE/diag/rdbms/<db unique name>/<instance name>/trace

By viewing V$SERVICE_STATS

In the current working directory

NEW QUESTION 16
Examine this statement and its corresponding execution plan:

Which phase introduces the CONCATENATION step?

SQL Semantic Check

SQL Execution

SQL Row Source Generation

SQL Transformation

SQL Adaptive Execution

NEW QUESTION 17
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?

Set the parameter OPTIMIZER_ADAPTIVE_STATISTICS to FALSE.

Use DBMS_AUTO_TASK_ADMIN. DISABLE to disable the AUTO_STATS_ADVISOR_TASK task.

Set the AUTO_STATS_ADVISOR_TASK global statistics preference to FALSE.

Use DBMS STATS.DROP ADVISOR TASK to drop the AUTO_STATS_ADVISOR_TASK task.

NEW QUESTION 18
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?

By viewing V$SERV_MOD_ACT_STATS

In $ORACLE_BASE/diag/rdbms/<db unique name>/<instance name>/trace

By viewing V$SERVICE_STATS

In the current working directory

NEW QUESTION 19
What is the right time to stop tuning an Oracle database?

When the allocated budget for performance tuning has been exhausted

When all the concurrency waits are eliminated from the Top 10

When the buffer cache and library cache hit ratio is above 95%

When the I/O is less than 10% of the DB time

When the tuning goal has been met

NEW QUESTION 20
A database instance is suffering poor I/O performance on two frequently accessed large tables.
No Big Table caching occurs in the database.
Examine these parameter settings:

Which are two actions either one of which will allow Big Table caching to occur?

Increasing DB_BIG_TABLE_CACHE_PERCENT_TARGET to at least 50

Setting DB_KEEP_CACHE_SIZE to at least 50M

Increasing DB_BIG_TABLE_CACHE_PERCENT_TARGET to at least 25

Increasing DB_CACHESIZE to 1 G

Setting PARALLEL_DEGREE_POLICYADAPTIVE

Setting PARALLEL_DEGREE_POLICYAUTO

NEW QUESTION 21
Examine this statement and output:

Which two situations can trigger this error?

The user lacks the required privileges to execute the DBMS WORKLOAD CAPTURE package or the directory.

There is a file in the capture directory.

The syntax is incomplete.

The capture directory is part of the root file system.

The instance is unable to access the capture directory.

NEW QUESTION 22
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?

enq: SQ – contention

enq: TM – contention

enq: HW – contention

enq: TX – allocate ITL entry

NEW QUESTION 23
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

increasing the value of DB_FILE_MULTIBLOCK_READ_COUNT to 128

Increasing the size of MEMORYTARGET

setting dbwr_io_slaves to 64

increasing the value of DBWRITERPROCESSES to 64,

reducing the values of DB_FILE_MULTILOCK_READ_COUNT to 64

NEW QUESTION 24
Database performance degraded between 23:15 and 23:30 for the last three nights. The awr snapshot interval is one hour. The AODM report contains nothing about this performance problem.
With which tool can you further analyze this problem?

SQL Performance Analyzer

AWR Compare Periods report

SQL Tuning Advisor

Active Session History report

NEW QUESTION 25
Examine these commands, which execute successfully:

Which statement is true?

AD DM is enabled for all pluggable databases.

ADDM, AWR, and ASH reports can be purged automatically.

AWR- snapshots in all pluggable databases will be purged automatically after every 60 mins.

AWR snapshots can be purged manually in pluggable databases.

NEW QUESTION 26
You need to transport performance data from a Standard Edition to an Enterprise Edition database. What is the recommended method to do this?

Export the data by using expdp from Statspack and import it by using $ORACLE_HOME/rdbms/admin
/awrload into the AWR repository.

Export the data by using expdp from the ftatspack repository and import it by using impdp into the AWR repository.

Export the data by using the expdp utility and parameter file spuexp.par from the Statspack repository and import it by using impdp into Export the data by using expdp from the Statspack repository and import it by using impdp into the AWR repository.

Export the data by using the exp utility and parameter file spuexp.par from the Statspack repository and import it by using imp into a dedicated Statspack schema on the destination.

NEW QUESTION 27
Examine these commands, which execute successfully:

Which statement is true?