Question 1

Your inbound replication from an on-premises MySQL database to your HeatWave service is experiencing errors and delays. How can you troubleshoot the issue effectively?

Options :

A : Monitor HeatWave resource utilization and adjust resource allocation if needed.

B : Analyze HeatWave redo logs for errors related to replication activity.

C : Check the on-premises database logs for connectivity issues and replication errors.

D : Review all GoldenGate logs and configuration settings for potential inconsistencies.

Answer: D

Question 2

How does the MySQL HeatWave architecture handle data distribution and access across multiple HeatWave Compute Nodes?

Options :

A : Broadcast: All nodes receive and process every query, leading to redundant work and potentially decreased performance.

B : Master-slave: One node acts as the master and receives all queries, while other nodes act as slaves and only execute the tasks assigned by the master.

C : Hash partitioning: Data is distributed and stored on specific nodes based on a hashing algorithm, ensuring efficient data access and parallel query execution.

D : Round-robin: Queries are sent to nodes in a circular fashion, potentially leading to uneven workloads and performance bottlenecks

Answer: C

Question 3

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

Options :

A : Feature Importance

B : Early Stopping

C : Hyperparameter Tuning

D : Explainability

Answer: B

Question 4

You plan to update the HeatWave service version with minimal downtime for ongoing queries. Which update approach and strategy should you utilize to achieve this goal?

Options :

A : Perform a rolling update with online schema migration followed by service restart.

B : Apply the update directly to the running service and accept potential query interruptions.

C : Schedule the update during a maintenance window and fully restart the HeatWave service.

D : Migrate queries to a standby HeatWave cluster before updating the primary service.

Answer: A

Question 5

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?

Options :

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

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