1Z0-915-1 Practice Online

Question 1

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?

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 2

Which backup method utilizes minimal network resources and complies with security best practices?

A : Offline backup using the HeatWave Administration Console

B : Online backup with RMAN to Object Storage via a public endpoint

C : Online backup with the HEATWAVE_FULL_BACKUP tool to a local NVMe disk

D : Online backup with Data Guard to another HeatWave service in a separate VCN

Answer: A

Question 3

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

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

Your VCN already contains multiple subnets for various purposes. What additional resource should you configure within the chosen subnet before provisioning your MySQL HeatWave DB system?

A : A NAT gateway to enable outbound internet access for the database.

B : A security list with inbound and outbound rules specific to the MySQL HeatWave service.

C : A route table linking the subnet to a virtual private cloud (VPC) in another region.

D : An internet gateway to enable direct public connectivity for the database instance.

E : Additional network security groups for granular access control within the subnet.

Answer: B

Question 5

Your application is configured to connect to the primary instance of your MySQL HeatWave service. You want to switch to a read replica for read-heavy workloads. Which approach is recommended for minimizing application downtime during the switch?

A : Update the application's connection string directly to point to the read replica endpoint.

B : Modify the read replica load balancer configuration to route all traffic to the desired replica.

C : Implement a DNS failover mechanism to automatically switch to the read replica in case of the primary outage.

D : Use a database proxy with read replica awareness to transparently redirect read queries to the replica.

Answer: D

Name:	MySQL HeatWave Implementation Associate Rel 1
Exam Code:	1Z0-915-1
Certification:	Oracle MySQL
Vendor:	Oracle
Total Questions:	135
Last Updated:	May 16, 2024

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