RELIABLE TEST 1Z0-084 TEST | EXAM 1Z0-084 SAMPLE

Reliable Test 1Z0-084 Test | Exam 1Z0-084 Sample

Reliable Test 1Z0-084 Test | Exam 1Z0-084 Sample

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Tags: Reliable Test 1Z0-084 Test, Exam 1Z0-084 Sample, Valid Test 1Z0-084 Tutorial, 1Z0-084 Latest Practice Questions, 1Z0-084 Standard Answers

The Actual4Dumps is one of the leading platforms that has been offering real and valid Oracle Database 19c Performance and Tuning Management (1Z0-084) exam practice test questions. These Oracle Database 19c Performance and Tuning Management (1Z0-084) exam questions are designed and verified by Oracle 1Z0-084 subject matter experts. They work closely together and put all their expertise to check the Oracle 1Z0-084 exam questions one by one.

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.

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Exam 1Z0-084 Sample - Valid Test 1Z0-084 Tutorial

Our Oracle Database 19c Performance and Tuning Management (1Z0-084) practice exam simulator mirrors the 1Z0-084 exam experience, so you know what to anticipate on 1Z0-084 certification exam day. Our Oracle Database 19c Performance and Tuning Management (1Z0-084) practice test software features various question styles and levels, so you can customize your Oracle 1Z0-084 exam questions preparation to meet your needs.

Oracle 1Z0-084 certification exam is an important credential for IT professionals who work with Oracle databases. By passing 1Z0-084 exam, candidates can prove their expertise in database performance and tuning management, which can lead to better job opportunities, higher salaries, and increased credibility in the IT industry.

Oracle 1Z0-084 certification exam is an essential certification for individuals who work with Oracle Database 19c. It tests their knowledge and skills in performance tuning and management, and earning this certification validates their expertise in this area. By passing 1Z0-084 Exam, individuals can increase their career opportunities and demonstrate their proficiency in Oracle Database 19c performance and tuning management.

Oracle Database 19c Performance and Tuning Management Sample Questions (Q10-Q15):

NEW QUESTION # 10
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=ALL and
    CONTROL_MANAGEMENT_PACK_ACCESS=DIAGOSTIC+TUNING
  • B. STATISTICS_LEVEL=TYPICAL and CONTROL_MANAGEMENT_PACK_ACCESS-
    DIAGOSTIC*TUNING
  • C. STATISTICS_LEVEL=TYPICAL and CONTROL_MANAGEMENT_PACK_ACCESS=DIAGOSTIC
  • D. STATISTICS_LEVEL=BASIC and CONTROL_MANAGEMENT_PACK ACCESS=DIAGOSTIC

Answer: A

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 # 11
Examine this statement and its corresponding execution plan:

Which phase introduces the CONCATENATION step?

  • A. SQL Row Source Generation
  • B. SQL Semantic Check
  • C. SQL Execution
  • D. SQL Transformation
  • E. SQL Adaptive Execution

Answer: D

Explanation:
The CONCATENATION step in an execution plan is introduced during the SQL Transformation phase. This phase is part of the optimizer's query transformations which can include various techniques to rewrite the query for more efficient execution. The CONCATENATION operation is used to combine the results of two separate SQL operations, typically when there is an OR condition in the WHERE clause, as seen in the provided query.
References:
* Oracle Database SQL Tuning Guide, 19c
* Oracle Database Concepts, 19c


NEW QUESTION # 12
Which three statements are true about tuning dimensions and details of v$sys_time_model and DB time?

  • A. Parse Time Elapsed accounts for successful soft and hard parse operations only.
  • B. The proportion of WAIT TIME to CPU TIME always increases with increased system load.
  • C. Statspack cannot account for high CPU time when CPU TIME is a Top 10 event in DB time. When CPU time is high, SQL tuning may improve performance.
  • D. Systems in which CPU time is dominant need more tuning that those in which WAIT TIME is dominant.
  • E. When WAIT TIME is high, instance tuning may improve performance.
  • F. DB Time accounts for all time used by background processes and user sessions.

Answer: C,E,F

Explanation:
A: Statspack is a performance diagnostic tool that can help identify high CPU usage issues. High CPU time may indicate that SQL statements need to be tuned for better performance.
D: High wait times can often be reduced by instance tuning, such as adjusting database parameters or improving I/O performance.
F: DB Time is a cumulative time metric that includes the time spent by both user sessions and background processes executing database calls.References:
* Oracle Database Performance Tuning Guide, 19c
* Oracle Database Concepts, 19c


NEW QUESTION # 13
Which three statements are true about server-generated alerts?

  • A. They are notifications from the Oracle Database Server of an existing or impending problem.
  • B. They can be viewed only from the Cloud Control Database home page.
  • C. They are logged in the alert log.
  • D. They may contain suggestions for correcting the identified problems.
  • E. They provide notifications but never any suggestions for correcting the identified problems.
  • F. Their threshold settings can be modified by using DBMS_SERVER_ALERT.

Answer: A,C,D

Explanation:
Server-generated alerts in Oracle Database are designed to notify DBAs and other administrators about issues within the database environment. These alerts can be triggered by a variety of conditions, including threshold-based metrics and specific events such as ORA- error messages. Here's how these options align with the statements provided:
* A (True):Server-generated alerts are indeed notifications from the Oracle Database Server that highlight existing or impending issues. These alerts are part of Oracle's proactive management capabilities, designed to inform administrators about potential problems before they escalate.
* C (True):These alerts are logged in the alert log of the Oracle Database. The alert log is a crucial diagnostic tool that records major events and changes in the database, including server-generated alerts.
This log is often the first place DBAs look when troubleshooting database issues.
* F (True):Server-generated alerts may include suggestions for correcting identified problems. Oracle Database often provides actionable advice within these alerts to assist in resolving issues more efficiently. These suggestions can range from adjusting configuration parameters to performing specific maintenance tasks.
Options B, D, and E do not accurately describe server-generated alerts:
* B (False):While the statement might have been true in some contexts, Oracle's server-generated alerts often include corrective suggestions, making this statement incorrect.
* D (False):Server-generated alerts can be viewed from various interfaces, not just the Cloud Control Database home page. They are accessible through Enterprise Manager, SQL Developer, and directly within the database alert log, among other tools.
* E (False):While it's true that threshold settings for some alerts can be modified, the method specified, usingDBMS_SERVER_ALERT, is not correct. Threshold settings are typically adjusted through Enterprise Manager or by modifying specific initialization parameters directly.
References:
* Oracle Database Documentation:Oracle Database 19c: Performance Management and Tuning
* Oracle Base: Alert Log and Trace Files
* Oracle Support:Understanding and Managing Server-Generated Alerts


NEW QUESTION # 14
Which two types of performance problems are reported by ADDM for PDBS?

  • A. Top SQL statements
  • B. User I/O waits
  • C. I/O capacity limits
  • D. SGA sizing issues
  • E. Excessive checkpoint writes

Answer: B,C

Explanation:
The Automatic Database Diagnostic Monitor (ADDM) analyzes and reports on various types of performance problems. For Pluggable Databases (PDBs), it can identify issues such as I/O capacity limits which may hinder the overall performance by causing bottlenecks. Additionally, ADDM can report on user I/O waits, which can indicate performance issues related to the time it takes for user queries to read data from the disk.
References:
* Oracle Multitenant Administrator's Guide, 19c
* Oracle Database Performance Tuning Guide, 19c


NEW QUESTION # 15
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