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: Sep 11, 2025

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Question 1

You have provisioned a MySQL HeatWave DB system in your VCN and want to connect using MySQL Shell from your local machine. Which additional configuration is necessary to establish a secure connection?

A : Configure a bastion service in your VCN and access the DB system through the bastion instance-s internal IP address.

B : Enable SSH public key authentication on the DB system and utilize the \connect command with the public endpoint IP address and private key.

C : Grant your user account the connect privilege for the database and use the mysql command with the DB system-s public endpoint IP address and username/password.

D : Create a route table entry in your VCN routing traffic from your local machine-s subnet to the DB system-s subnet directly.

E : Configure a VPN connection between your local machine and the VCN containing the DB system and connect using the private endpoint IP address.

Answer: B

Question 2

Which type of configuration variables CANNOT be modified in MySQL custom configurations?

A : Initialization variables

B : User variables

C : System variables

D : Default user variables

Answer: A

Question 3

You are successfully connected to your MySQL HeatWave DB system using MySQL Shell. Which command can you use to verify the connection and confirm you are accessing the HeatWave layer?

A : SHOW SCHEMAS; - This command lists all available schemas in the database.

B : SELECT * FROM SYS.STORAGE_POOL; - This command retrieves information about the HeatWave storage pool.

C : SHOW ENGINE; - This command displays the currently active storage engine, indicating HeatWave if connected correctly.

D : SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES; - This command counts the total number of tables in the database.

E : SHOW VARIABLES WHERE VARIABLE_NAME LIKE '%HEATWAVE%'; - This command displays all MySQL variables related to HeatWave settings.

Answer: C

Question 4

You have a MySQL DB system with five active read replicas. The workload consists of 5% writes and 95%

reads.

Which connection method provides the fastest query response time?

A : Connect to the source DB system to perform read-only operations.

B : Connect to a specific read replica to perform read-only operations.

C : Connect to the read replica load balancer to perform read-only operations.

D : Connect to the read replica load balancer to perform read/write operations.

Answer: C

Question 5

Which statement accurately describes the data distribution and processing within a HeatWave cluster?

A : Data is replicated across all nodes, and each node processes all queries independently.

B : Data is partitioned and stored on specific nodes, while queries are executed in parallel on all nodes.

C : A single node stores and processes all data, while other nodes act as standby replicas.

D : Data is cached in-memory on one node, and queries are offloaded to the database system for execution.

E : Queries are divided into subtasks and distributed to available nodes for parallel execution.

Answer: B

Page: 1 / 40

Total 200 Questions | Updated On: Sep 11, 2025

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