PASS GUARANTEED QUIZ 2025 ORACLE FANTASTIC 1Z0-084 RELIABLE MOCK TEST

Pass Guaranteed Quiz 2025 Oracle Fantastic 1Z0-084 Reliable Mock Test

Pass Guaranteed Quiz 2025 Oracle Fantastic 1Z0-084 Reliable Mock Test

Blog Article

Tags: 1Z0-084 Reliable Mock Test, 1Z0-084 Exam Fees, 1Z0-084 Valid Test Cram, 1Z0-084 Exam Questions Fee, Latest 1Z0-084 Practice Questions

DOWNLOAD the newest TorrentVCE 1Z0-084 PDF dumps from Cloud Storage for free: https://drive.google.com/open?id=1nw1BttvMVT5ascAQC1bEJLiIt7HkgEiQ

If you are a college student, you can learn and use online resources through the student learning platform over the 1Z0-084 study materials. And for an office worker, the 1Z0-084 study engine is desighed to their different learning arrangement as well, such extensive audience greatly improved the core competitiveness of our 1Z0-084 practice quiz, which is according to their aptitude, on-demand, maximum to provide users with better suited to their specific circumstances.

The Oracle 1Z0-084 exam consists of 60 multiple-choice questions, which must be answered within 105 minutes. The questions are divided into three sections: System Infrastructure, Database Performance Management, and Optimizing Database Performance. To pass the exam, the candidate must score at least 63% (38 out of 60 questions) or higher. Oracle recommends that candidates have at least two years of relevant experience in database administration or development before taking 1Z0-084 exam, as well as experience with Oracle Database 19c. With the right study tools and experience, candidates can prepare for and pass the Oracle 1Z0-084 exam and demonstrate their expertise in performance and tuning management.

To pass the Oracle 1Z0-084 Exam, candidates must have a strong understanding of Oracle Database 19c architecture, performance tuning, and management techniques. They must be able to identify and resolve performance issues and optimize database performance for efficient data processing. 1Z0-084 exam also requires proficiency in SQL tuning, resource management, and diagnosing performance problems. Successful candidates will have the knowledge and skills needed to design and implement high-performance systems and ensure the optimal operation of Oracle Database 19c. Overall, the 1Z0-084 exam is an essential certification for professionals who want to demonstrate their expertise in managing Oracle Database performance and tuning.

>> 1Z0-084 Reliable Mock Test <<

Realistic 1Z0-084 Reliable Mock Test - Pass 1Z0-084 Exam

If you are going to purchasing the 1Z0-084 training materials, and want to get a general idea of what our product about, you can try the free demo of our website. Once you have decide to buy the 1Z0-084 training materials, if you have some questions, you can contact with our service, and we will give you suggestions and some necessary instruction. You will get the 1Z0-084 Exam Dumps within ten minutes. And if you didn’t receive it, you can notify us through live chat or email, we will settle it for you.

Oracle Database 19c Performance and Tuning Management certification exam, also known as 1Z0-084, is a certification program designed for IT professionals who specialize in Oracle database performance and tuning management. Oracle Database 19c Performance and Tuning Management certification exam is intended for individuals who have prior experience in database administration and are looking to expand their knowledge and skillset in the area of performance management.

Oracle Database 19c Performance and Tuning Management Sample Questions (Q11-Q16):

NEW QUESTION # 11
What are the least elevated values of statistics_level and C0NTR0LJ4ANAGEMENT_PACK_ACCESS that allow the usage of Monitoring of Database Operations?

  • A. STATISTICS_LEVEL=TYPICAL and CONTROL_MANAGEMENT_PACK_ACCESS-
    DIAGOSTIC*TUNING
  • B. STATISTICS_LEVEL=BASIC and CONTROL_MANAGEMENT_PACK ACCESS=DIAGOSTIC
  • C. STATISTICS_LEVEL=TYPICAL and CONTROL_MANAGEMENT_PACK_ACCESS=DIAGOSTIC
  • D. STATISTICS_LEVEL=ALL and
    CONTROL_MANAGEMENT_PACK_ACCESS=DIAGOSTIC+TUNING

Answer: D

Explanation:
Monitoring of Database Operations requires that the STATISTICS_LEVEL parameter be set to ALL and CONTROL_MANAGEMENT_PACK_ACCESS be set to DIAGNOSTIC+TUNING. These settings enable all the advisory features and automatic tuning features within the Oracle Database, including the Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the full functionality of the SQL Tuning Advisor and SQL Access Advisor, which are components of the Diagnostic and Tuning packs.
* STATISTICS_LEVEL=ALL: This setting enables the collection of all system statistics for problem detection and self-tuning purposes.
* CONTROL_MANAGEMENT_PACK_ACCESS=DIAGNOSTIC+TUNING: This grants access to both the Diagnostic Pack and the Tuning Pack, which are essential for detailed performance monitoring and tuning capabilities.
References:
* Oracle Database Reference: STATISTICS_LEVEL
* Oracle Database Licensing Information User Manual: Oracle Database Management Packs


NEW QUESTION # 12
Examine this code block, which executes successfully:
DBMS_SERVER_ALERT. SET_THRESHOLD (
DBMS_SERVER_ALERT.CPU_TIME_PER_CALL, DBMS_SERVER_ALERT. OPERATOR_GE, '8000', DBMS_SERVER_ALERT.OPERATOR_GE, '10000', 1, 2, 'inst1', DBMS_SERVER_ALERT.OBJECT_TYPE_SERVICE, 'main.regress.rdbms.dev.us.example.com') ;

What will happen?

  • A. A warning alert will be issued when CPU time exceeds 1 minute for each user call.
  • B. A critical alert will be issued when CPU time exceeds 2 minutes for each user call.
  • C. A warning alert will be issued only when CPU time exceeds 10000 microseconds for each user call.
  • D. A critical alert will be issued when CPU time exceeds 10000 microseconds for each user call.

Answer: D

Explanation:
In the provided code block, theDBMS_SERVER_ALERT.SET_THRESHOLDprocedure is used to set alert thresholds for the CPU time per call in Oracle Database. This procedure is a part of Oracle's Database Server Alert system, which monitors various metrics and generates alerts when certain thresholds are exceeded.
The parameters passed to theSET_THRESHOLDprocedure are as follows:
* The first parameterDBMS_SERVER_ALERT.CPU_TIME_PER_CALLspecifies the metric for which the threshold is being set, in this case, the CPU time consumed per database call.
* The second and third parametersDBMS_SERVER_ALERT.OPERATOR_GEand'8000'specify the warning threshold level and its value, respectively. However, these are not relevant to the answer as they are overridden by the critical threshold settings.
* The fourth and fifth parametersDBMS_SERVER_ALERT.OPERATOR_GEand'10000'set the critical threshold level and its value. This means that a critical alert will be generated when the CPU time per call exceeds 10000 microseconds.
* The remaining parameters specify the warning and critical alert intervals, the instance name, the object type, and the service name. These are not directly relevant to the behavior described in the options.
Thus, the correct answer is B, as the critical threshold for CPU time per call is set to 10000 microseconds, and the system is configured to issue a critical alert when this threshold is exceeded.
References:
* Oracle Database 19c documentation on theDBMS_SERVER_ALERT.SET_THRESHOLDprocedure, which details the parameters and usage of this procedure for setting alert thresholds within Oracle Database monitoring system.
* Oracle Database Performance Tuning Guide, which provides best practices and methodologies for monitoring and tuning Oracle Database performance, including the use of server alerts and thresholds.


NEW QUESTION # 13
You are informed that the RMAN session that is performing the database duplication is much slower than usual. You want to know the approximate time when the rman operation will be completed.
Which view has this information?

  • A. V$SESSTAT
  • B. V$RMAN_BACKUP_JOB_DETAILS
  • C. V$SESSION_LONGOPS
  • D. V$SESSION

Answer: C

Explanation:
In Oracle Database, theV$SESSION_LONGOPSview provides insights into various operations within the database that are expected to take more than six seconds to complete. These include operations related to RMAN (Recovery Manager), such as database duplication tasks. This view displays information about the progress of these long-running operations, including the start time, elapsed time, and estimated time to completion.
When an RMAN session is performing a database duplication and is observed to be slower than usual, checking theV$SESSION_LONGOPSview can give an approximation ofwhen the RMAN operation might complete. This view includes fields likeTIME_REMAININGandELAPSED_SECONDSthat help in estimating the completion time of the operation based on its current progress.
References:
* Oracle Database Reference:V$SESSION_LONGOPS
* Oracle Database Backup and Recovery User's Guide:Monitoring RMAN Jobs


NEW QUESTION # 14
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. 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.
  • B. Replace the FETCH FIRST clause with ROWNUM to enable the use of an index on SALES.
  • C. Create an index on SALES.TIME_ID to force the return of rows in the order specified by the ORDER BY clause.
  • D. Collect a new set of statistics on PRODUCT, CUSTOMERS, and SALES because the current stats are inaccurate.
  • 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 # 15
Which three statements are true about using the in Memory (IM) column store?

  • A. It can improve OLTP workload performance by avoiding the use of indexes.
  • B. It does not improve performance for queries using user-defined virtual column results.
  • C. It does not improve performance for queries using cached results of function evaluations on columns from the same table.
  • D. It does not improve performance for queries that use join groups on columns from different tables.
  • E. It improves performance for queries joining several tables using bloom filter joins.
  • F. It does not require all database data to fit in memory to improve query performance.

Answer: A,E,F

Explanation:
The Oracle In-Memory (IM) column store feature enhances the performance of databases by providing a fast columnar storage format for analytical workloads while also potentially benefiting OLTP workloads.
* C (True): It can improve OLTP workload performance by providing a faster access path for full table scans and reducing the need for indexes in certain scenarios, as the In-Memory store allows for efficient in-memory scans.
* E (True): The In-Memory column store does not require all database data to fit in memory. It can be used selectively for performance-critical tables or partitions, and Oracle Database will manage the population and eviction of data as needed.
* F (True): In-Memory column store can significantly improve performance for queries joining several tables, especially when bloom filters are used, as they are highly efficient with the columnar format for large scans and join processing.
The other options provided are not correct in the context of the In-Memory column store:
* A (False): While In-Memory column store is designed for analytical queries rather than caching results of function evaluations, it does not specifically avoid improving performance for queries using cached results of function evaluations.
* B (False): In-Memory column store can improve the performance of queries that use join groups, which can be used to optimize joins on columns from different tables.
* D (False): In-Memory column store can improve the performance of queries using expressions, including user-defined virtual columns, because it supports expression statistics which help in optimizing such queries.
References:
* Oracle Database In-Memory Guide: In-Memory Column Store in Oracle Database
* Oracle Database In-Memory Guide: In-Memory Joins
* Oracle Database In-Memory Guide: In-Memory Aggregation


NEW QUESTION # 16
......

1Z0-084 Exam Fees: https://www.torrentvce.com/1Z0-084-valid-vce-collection.html

P.S. Free & New 1Z0-084 dumps are available on Google Drive shared by TorrentVCE: https://drive.google.com/open?id=1nw1BttvMVT5ascAQC1bEJLiIt7HkgEiQ

Report this page