Free Oracle 1Z0-915-1 Exam Questions

Become Oracle Certified with updated 1Z0-915-1 exam questions and correct answers

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Total 200 Questions | Updated On: Mar 11, 2026

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Question 1

You're migrating a high-volume transactional database to MySQL HeatWave using replication. To minimize downtime on the source system, what replication configuration would be MOST effective?

A : Configure continuous replication with minimal lag between source and target.

B : Implement snapshot replication with periodic data synchronization at scheduled intervals.

C : Set up asynchronous replication with manual data synchronization when downtime is acceptable.

D : Utilize statement-based replication with delayed commit on the HeatWave target system.

Answer: B

Question 2

What additional configuration is needed alongside IAM integration to enable users to connect to the MySQL HeatWave DB system using IAM credentials?

A : Configure a Bastion session with the DB system-s private subnet as the target resource.

B : Set up SSH key authentication on the DB system and specify the key pair during IAM user creation.

C : Create a dedicated security list rule allowing inbound traffic from the OCI Console IP address range.

D : Configure virtual private cloud (VPC) peering between the DB system-s VCN and the IAM service VCN.

E : Assign the heatwave_user role to IAM users intended to access the HeatWave layer.

Answer: E

Question 3

You want to set up automatic backups for your MySQL HeatWave service in OCI. Which three configuration options are essential for a robust backup strategy?

A : Retention policy for archived backups

B : Encryption options for backup files

C : Scheduling for incremental backups

D : Backup storage destination in OCI Object Storage

E : Integration with Oracle Cloud Infrastructure Notifications

Answer: A,B,D

Question 4

Which AutoML feature can address overfitting in a MySQL HeatWave deployment with a model exhibiting high accuracy?

A : Feature Importance

B : Early Stopping

C : Hyperparameter Tuning

D : Explainability

Answer: B

Question 5

You need to update the query_cache_size configuration parameter in your MySQL HeatWave service. Which of the following methods is recommended for a production environment with minimal disruption?

A : Modify the my.cnf file and restart the HeatWave service

B : Use the ALTER SYSTEM statement directly in the HeatWave SQL shell

C : Update the parameter through the Oracle Cloud Infrastructure (OCI) Console

D : Use the SET GLOBAL statement in a MySQL client session

Answer: C

Page: 1 / 40

Total 200 Questions | Updated On: Mar 11, 2026

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