Free Practice Oracle 1Z0-084 Exam Questions 2025

Stay ahead with 100% Free Oracle Database 19c: Performance Management and Tuning 1Z0-084 Dumps Practice Questions

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Total 378 Questions | Updated On: Jul 24, 2023

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Question 1

Which of the following statements accurately describes the Automatic Workload Repository (AWR) feature in Oracle Database 19c for performance management and tuning?

A : AWR provides historical performance data that can be used for diagnosing performance issues and identifying trends.

B : AWR captures and stores all SQL statements executed in the database along with their execution plans.

C : AWR automatically generates recommendations for performance tuning based on the collected performance data.

D : AWR provides real-time monitoring of database performance and generates alerts for potential issues.

Answer: A

Question 2

Which of the following statements is true about the optimizer index skip scan feature in Oracle Database 19c?

A : The optimizer index skip scan feature allows the optimizer to skip over one or more leading columns of an index in order to improve query performance.

B : The optimizer index skip scan feature allows the optimizer to skip over only the first column of an index in order to improve query performance.

C : The optimizer index skip scan feature allows the optimizer to scan an index in reverse order, starting from the last column instead of the first column.

D : The optimizer index skip scan feature is not available in Oracle Database 19c.

Answer: A

Question 3

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 : Partition the SALES table.

B : Increase PCTFREE for the SALES table.

C : Re-create the SALES table.

D : Compress the SALES table.

E : Coalesce all sales table indexes.

Answer: A,D

Question 4

Which feature of Oracle Database 19c can be used to maximize query performance by automatically creating and maintaining optimal indexes?

A : Table Compression

B : Query Rewrite

C : Real Application Testing

D : Automatic Indexing

Answer: D

Question 5

Which is the default memory management mode in Oracle Database 19c?

A : Automatic Shared Memory Management (ASMM)

B : Automatic Memory Management (AMM)

C : Manual Memory Management

D : Dynamic Memory Management

Answer: B

Page: 1 / 76

Total 378 Questions | Updated On: Jul 24, 2023

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