RELIABLE AND GUARANTEE REFUND OF ORACLE 1Z1-084 EXAM DUMPS ACCORDING TO TERMS AND CONDITIONS

Reliable and Guarantee Refund of Oracle 1z1-084 Exam Dumps According to Terms and Conditions

Reliable and Guarantee Refund of Oracle 1z1-084 Exam Dumps According to Terms and Conditions

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Oracle 1Z0-084 exam is challenging, and candidates need a thorough understanding of performance and tuning concepts, and in-depth knowledge of Oracle Database 19c. 1z1-084 Exam is 120 minutes long, consists of 85 questions, and requires a passing score of 62%. Candidates who pass the exam demonstrate their skills and knowledge of performance and tuning management, which is highly valued by employers and recognized as an industry-standard certification in the field of Oracle Databases.

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Oracle Database 19c Performance and Tuning Management Sample Questions (Q36-Q41):

NEW QUESTION # 36
Which two statements are true about space usage in temporary tablespaces?

  • A. A sort will fail if a sort to disk requires more disk space and no additional extent can be found/allocated in/for the sort segment.
  • B. When a session consumes all temporary tablespace storage, then the session would hang until the temporary space used by that session is cleared.
  • C. Lack of temporary tablespace space for sort operations can be prevented by using temporary tablespace groups.
  • D. When a global temporary table instantiation is too large to fit in memory, space is allocated in a temporary tablespace.
  • E. Temporary tablespaces setting Includes quotas to limit temporary space used by a session for that Temporary tablespace.

Answer: C,D

Explanation:
Regarding space usage in temporary tablespaces, the following statements are true:
* A (Correct):When a global temporary table or a sort operation exceeds the available memory, Oracle Database allocates space in a temporary tablespace to store the temporary data or intermediate results.
* E (Correct):Using temporary tablespace groups can prevent insufficient temporary tablespace for sort operations by providing a collective pool of space from multiple temporary tablespaces, which can be used for user sorting operations.
The other options provided have inaccuracies:
* B (Incorrect):Oracle does not provide a mechanism for setting quotas on temporary tablespaces. Quotas can be set for permanent tablespaces but not for temporary ones.
* C (Incorrect):A sort operation may fail due to insufficient space, but Oracle will attempt to allocate space in the temporary tablespace dynamically. If no space can be allocated, an error is returned rather than a sort failure.
* D (Incorrect):If a session consumes all available temporary tablespace storage, Oracle will not hang the session; it will return an error to the session indicating that it has run out of temporary space.
References:
* Oracle Database Administrator's Guide:Managing Space for Schema Objects
* Oracle Database Concepts:Temporary Tablespaces


NEW QUESTION # 37
You must produce a consolidated formatted trace file by combining all trace files generated by all clients for a single service.
Which combination of utilities does this?

  • A. Autotrace and TKPROF
  • B. Trace Analyzer and Tracsess
  • C. TKPROF and Trace Analyzer
  • D. Trcsess and TKPROF

Answer: D

Explanation:
To produce a consolidated formatted trace file from multiple trace files generated by all clients for a single service, the combination oftrcsessandTKPROFutilities is used. Thetrcsessutility consolidates trace files based on specified criteria such as session, client identifier, or service name. This results in a single trace file that combines the desired tracing information. Next,TKPROFis used to format the output of the trace file generated bytrcsess, providing a readable summary of the trace, including execution counts, execution times, and SQL statement text along with execution plans.
Steps:
* Usetrcsessto combine trace files:
* Command:trcsess output=consolidated.trc service=your_service_name *.trc
* UseTKPROFto format the consolidated trace file:
* Command:tkprof consolidated.trc output.txt explain=user/password sys=no sort=prsela,fchela References:
* Oracle Database Performance Tuning Guide, 19c
* Oracle Database Utilities, 19c


NEW QUESTION # 38
Which statement is true about DB time in V$$YS_TIME_MODEL?

  • A. DB time includes the time spent executing the RMAN backup and restore command.
  • B. DB time can be many times greater than the elapsed time since the database instance started.
  • C. DB time is organized as a simple list of statistics and any time period is attributable to only one statistic.
  • D. DB tine excludes the time spent waiting for a CPU in the operating system run queue.

Answer: B

Explanation:
DB time includes the time spent on user and background processes. It can be greater than the elapsed time because it accumulates the active time of all the processes. For example, if two sessions are each active for 2 seconds at the same time, DB time would accumulate 4 seconds, while the elapsed time would be only 2 seconds.References:
* Oracle Database Performance Tuning Guide, 19c
* Oracle Database Reference, 19c


NEW QUESTION # 39
A Standard Edition production database has performance problems for two hours on the same day each week.
Which tool must you use to diagnose the problem?

  • A. Statspack report
  • B. Database Replay
  • C. AWR Compare Periods report
  • D. SQL Performance Analyzer

Answer: A

Explanation:
For a Standard Edition production database, the Statspack tool is available to diagnose performance problems.
The Automatic Workload Repository (AWR) and its related tools like AWR Compare Periods report and SQL Performance Analyzer are features of the Oracle Database Enterprise Edition and are not available in Standard Edition. Database Replay is also a feature of the Enterprise Edition. Statspack is a performance diagnostic tool provided for earlier versions and Standard Editions of the Oracle Database to collect, store, and analyze performance data.
References
* Oracle Database 19c Administrator's Guide - Using Statspack to Diagnose Database Performance Issues


NEW QUESTION # 40
You want to reduce the amount of db file scattered read that is generated in the database.You execute the SQL Tuning Advisor against the relevant workload. Which two can be part of the expected result?

  • A. recommendations regarding the creation of materialized views
  • B. recommendations regarding the creation of additional indexes
  • C. recommendations regarding the creation of SQL Patches
  • D. recommendations regarding partitioning the tables
  • E. recommendations regarding rewriting the SQL statements

Answer: A,B

Explanation:
The SQL Tuning Advisor provides recommendations for improving SQL query performance. This may include suggestions for creating additional indexes to speed up data retrieval and materialized views to precompute and store query results.References:
* Oracle Database SQL Tuning Guide, 19c


NEW QUESTION # 41
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