Nov 07, 2025 Newest 1z0-915-1 Exam Dumps – Achieve Success in Actual 1z0-915-1 Exam [Q12-Q26]

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Nov 07, 2025 Newest 1z0-915-1 Exam Dumps – Achieve Success in Actual 1z0-915-1 Exam

Updated Oracle 1z0-915-1 Dumps – Check Free 1z0-915-1 Exam Dumps (2025)

Oracle 1z0-915-1 Exam Syllabus Topics:

Topic	Details
Topic 1	Data Migrations: For data migration specialists and database administrators, this part of the exam covers creating a DB system with data import, importing data into a DB system, and exporting data from MySQL servers and DB systems.
Topic 2	Provisioning and Connecting DB systems: For system administrators and database engineers, this part of the exam covers identifying VCN requirements for provisioning DB systems, connecting to DB systems with OCI Bastion, connecting to DB systems with MySQL Shell, connecting to DB systems with OCI Cloud Shell, connect to DB system with OCI SQL Worksheet, and authenticate DB system with OCI Identify Access Management credentials.
Topic 3	MySQL HeatWave Service: For database administrators, cloud architects, and DevOps engineers, this section of the exam covers identifying key features and benefits, describing MySQL HeatWave architecture, defining MySQL HeatWave terminology, and identifying MySQL HeatWave limitations.
Topic 4	Inbound Replication: For database administrators and replication experts, this section of the exam covers setting up and troubleshoot inbound replication and creating channels.
Topic 5	Describe the architecture of the HeatWave cluster, adding a HeatWave cluster to a DB system, and determine whether a query is offloaded to HeatWave cluster for execution.

Q12. Which operation is necessary before enabling a MySQL HeatWave cluster?

Start Cloud Shell in OCI Console connected to the DB system’s network.

Create all the schemas and tables in the DB system but do not load the data.

Offload the data to object storage to facilitate reloading into the cluster.

Create a DB system with a HeatWave shape.

Q13. The following statements execute successfully:
CALL sys.ML_TRAIN(‘ml_data.iris’, ‘class’, NULL, @model);
SELECT @model;
Which three are true? (Choose three.)

The statements validate the data set but do not create a model.

The generated model handle is shown in the output.

The statements create a classification model.

The training data set is obtained from the ml_data table in the iris schema.

The target column is class.

Q14. What happens when you perform a switchover of a high-availability DB system with an attached HeatWave cluster?

The HeatWave cluster is deleted and a new HeatWave cluster is attached to the new primary instance.

The HeatWave cluster is attached to the new primary instance.

The HeatWave cluster remains attached to the same DB system and the new primary instance redirects queries to that cluster.

The HeatWave cluster is no longer valid; you must re-create the HeatWave cluster.

Q15. You want to restore a stand-alone DB system to a high-availability DB system with a point-in-time recovery.
Which three are required? (Choose three.)

Every user table must have a primary key.

Point-in-time recovery must be enabled before the point in time to which you want to restore.

An automatic backup taken before the selected point in time must be available.

A manual backup taken before the selected point in time must be available.

The stand-alone DB system must remain active during the restore.

Q16. A MySQL DB system has an endpoint in an OCI VCN subnet. The VCN is not configured with VCN peering, VPN access, and FastConnect. You want to connect to the MySQL DB system directly from an OCI Cloud Shell session.
Which two are true? (Choose two.)

You must attach the Cloud Shell session to a VCN subnet that can connect to the MySQL DB system.

You must install mysql client programs in the Cloud Shell session.

The MySQL DB system subnet must be in the Cloud Shell tenancy home region.

The VCN subnet of the Cloud Shell session must have a Service Gateway in its route table.

The VCN subnet of the Cloud Shell session must have an Internet Gateway in its route table.

Q17. You have an inbound replication channel that replicates data from one DB system to another DB system. Both DB systems are created with the default configuration.
You encountered the following error on the target DB system:

What is the possible cause?

The missingGTID set has been archived to object storage and is no longer available.

The target DB system relay log file destination is full.

The channel has been disabled for more than 2 hours.

The administrator has deleted the binary log files from the source DB system.

Q18. Which two methods can be used to stop a DB system? (Choose two.)

Use the STOP action on the DB system details page in the OCI Console.

Run the shutdown command from a mysqladmin client logged in as the admin user.

Run the SHUTDOWN SQL statement from any connected client logged in as the admin user.

Execute the mysql db-system stop command from OCI CLI.

Q19. You want to train a model that predicts sales based on the available data the company holds.
This is an excerpt of thesalestable:

Which command trains the model?

CALL sys.ML_TRAIN(‘ml_data.sales’, ‘Sales’, JSON_OBJECT(‘task’, ‘anomaly_detection’),
@model);

CALL sys.mML_TRAIN(‘ml_data.sales’, ‘Sales’, JSON_OBJECT(‘task’, ‘forecasting’), @model);

CALL sys.ML_TRAIN(‘ml_data.sales’, ‘Sales’, JSON_OBJECT(‘task’, ‘classification’), @model);

CALL sys.ML_TRAIN(‘ml_data.sales’, ‘Sales’, JSON_OBJECT(‘task’, ‘regression’), @model);

Q20. Which two are true about creating a Bastion service to connect to a MySQL DB system? (Choose two.)

The Bastion service must have a public IP address.

The Bastion service must be in the same VCN as the DB system.

The Bastion CIDR block allowlist must include the IP address of all valid client machines.

The Bastion CIDR block allowlist must include the IP address of the DB system.

TheBastion subnet must have an ingress rule to allow stateful connections on the MvSQL DB system port number.

Q21. You run this command to connect successfully to a DB system:
mysqlsh [email protected] –auth-method=authentication_oci_client
Why does the command NOT require a password?

The credential is stored in an OCI vault secret.

The operating system user credential is used to authenticate with the DB system.

The correct API key-pair is specified in the -/. oci. config file.

The correct password is saved in the local MySQL Shell secret store.

Q22. Which sequence of steps must you perform to change the configuration of a high-availability DB system?

Disable high availability, edit the DB system, change the configuration, and enable high availability.

Stop the DB system, edit the DB system, change the configuration, and start the DB system.

Edit and change the configuration of all secondary instances, switch over to a secondary instance, andedit and change the configuration of the former primary instance.

Edit the DB system and change the configuration.

Q23. You want to create a custom configuration for the MySQL DB system in OCI Console. Which three can you set? (Choose three.)

Shape

VCN

Description

Subnet

Compartment

Q24. You want to enable high availability of a stand-alone DB system. Which two conditions are required? (Choose two.)

The DB system delete protection must be enabled.

The DB system crash recovery must be enabled.

The DB system point-in-time recovery must be enabled.

The DB system must be active.

The DB system automatic backup must be enabled.

Q25. Which two are true about data loaded into a MySQL HeatWave cluster? (Choose two.)

Data is replicated across cluster nodes for high availability.

Data is partitioned across cluster nodes for scalability.

Data is stored locally in each cluster node’s solid state disks (SSD) to increase I/O performance.

Data is stored in hybrid columnar format to speed up analytic queries.

Data rows are sorted on the primary key to speed up range search.

Q26. The following statements are executed successfully:

Which two are true? (Choose two.)

The data placement key of the airport table is airport_id.

The airport.tbl file is in CSV format.

The fields in the airport.tbl file are delimited by comma.

The data of the airport table is loaded into the MySQL DB system.

Every row in the airport table has a unique airport_id value.

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Oracle 1z0-915-1 Exam Syllabus Topics:

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