Question 1

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?

Options :

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 2

You're setting up inbound replication from an on-premises MySQL database to your MySQL HeatWave service in OCI. Which connectivity option offers the highest security and reliability for data transfer?

Options :

A : Configure direct TCP/IP connection between the on-premises database and HeatWave service.

B : Utilize Oracle GoldenGate with Secure Sockets Layer (SSL) encryption for data replication.

C : Establish connection through OCI VPN Connect with IPSec tunnel encryption.

D : Implement Oracle Cloud Infrastructure Object Storage as an intermediate staging point for data.

Answer: B

Question 3

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 4

You want to add a node to your HeatWave cluster for both transactions and analytics. What's the best approach?

Options :

A : Deploy a standalone node.

B : Create a new cluster and migrate data.

C : Add the node to the existing cluster.

D : Configure the node as a HeatWave proxy.

Answer: C

Question 5

You need to modify the data filtering of an existing inbound replication channel in your MySQL HeatWave service. What two methods can you use to achieve this?

Options :

A : Update the channel definition using the ALTER HEATWAVE CHANNEL statement.

B : Modify the filter rules directly on the source database replication plugin.

C : Recreate the replication channel with the desired data filtering applied.

D : Utilize the Oracle Cloud Infrastructure (OCI) Console to edit the channel properties.

Answer: A,B

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