1Z0-084 Practice Online

Question 1

Which of the following is considered a best practice for performance management and tuning in Oracle Database 19c?

A : gularly gather optimizer statistics

B : crease the size of the shared pool size

C : able Automatic Memory Management

D : a larger block size for all tablespaces

Answer: A

Question 2

Which statement about Undo and Redo Management is correct?

A : UNDO_RETENTION parameter determines the minimum amount of time that undo data will be retained in the undo tablespace.

B :

The MAXTRANS parameter determines the maximum number of transactions that can be concurrently active on a given data block.

C : UNDO_TABLESPACE parameter specifies the name of the default tablespace used for storing undo data.

D : LOG_BUFFER parameter determines the size of the redo log buffer in memory.

Answer: A

Question 3

Which of the following describes the benefit of using Resource Manager to manage resources in Oracle Database 19c?

A : ource Manager enables the classification of users, making tasks such as user authentication and role management more manageable.

B : ource Manager enables the prioritization of database server hardware, ensuring that more important tasks are given priority access to computing resources while lesser tasks are relegated until the primary request is done.

C : ource Manager enables dynamic switching between different workloads on the database, ensuring that the server always has the resources to handle traffic spikes.

D : ource Manager enables the definition of shared pool sizes and enables automatic distribution of resources between databases based on the workload and prior resource usage.

Answer: B

Question 4

Which of the following is a best practice for index management and tuning in Oracle Database 19c?

A : gularly rebuild all indexes to improve performance.

B : a higher PCTFREE value to reduce the frequency of index block splits.

C : index-organized tables (IOTs) for small lookup tables with few updates.

D : eate bitmap indexes on large tables with low cardinality columns.

Answer: C

Question 5

You must configure and enable Database Smart Flash Cache for a database.

You configure these flash devices:

Examine these parameter settings:

What must be configured so that the database uses these devices for the Database Smart Flash Cache?

A : Set DB_FLASH_CACHE_SIZE to 192G and MEMORY_TARGET to 256G.

B : Set DB_FLASH_CACHE_SIZE parameter to 192G.

C : Disable Automatic Memory Management and set SGA_TARGET to 256G.

D : Set DB_FLASH_CACHE_SIZE to 256G and change device /dev/sdk to 128G.

E : Set DB_FLASH_CACHE_SIZE parameter to 128G, 64G.

Answer: E

Name:	Oracle Database 19c: Performance Management and Tuning
Exam Code:	1Z0-084
Certification:	Oracle Database
Vendor:	Oracle
Total Questions:	378
Last Updated:	Mar 13, 2025

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