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Oracle 1z0-915-1 Exam Syllabus Topics:

Topic
Details

Topic 1

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 2

Read Replicas: For database architects and replication specialists, this domain of the exam covers creating and managing read replicas, describing the read replica load balancer, connecting to a read replica, etc.

Topic 3

Backing up and restoring DB systems: For database administrators and disaster recovery specialists, this section of the exam covers backing up and restoring a DB system, managing automatic backups, and performing point-in-time recovery.

Topic 4

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 5

Managing DB systems: For network administrators and cloud infrastructure specialists, this domain of the exam covers demonstrating a command of DRG and DRG Attachments, applying BGP in the OCI environment, evaluating OCI VPN Services, and validating the various FastConnect products from OCI.

Topic 6

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.

Topic 7

Inbound Replication: For database administrators and replication experts, this section of the exam covers setting up and troubleshoot inbound replication and creating channels.

Topic 8

High Availability: For system reliability engineers and database architects, this domain of the exam covers how to enable and disable the high availability of a DB system, explain placement considerations for a high availability DB system, distinguish between switchover and failover, etc.

Topic 9

HeatWave Cluster: For database performance specialists and cloud architects, this section of the exam covers

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Oracle MySQL HeatWave Implementation Associate Rel 1 Sample Questions (Q12-Q17):

NEW QUESTION # 12
Which two are true about data loaded into a MySQL HeatWave cluster? (Choose two.)

A. Data rows are sorted on the primary key to speed up range search.
B. Data is stored locally in each cluster node's solid state disks (SSD) to increase I/O performance.
C. Data is partitioned across cluster nodes for scalability.
D. Data is stored in hybrid columnar format to speed up analytic queries.
E. Data is replicated across cluster nodes for high availability.

Answer: C,D

Explanation:
Data loaded into a MySQL HeatWave cluster:
B:Data is partitioned across cluster nodes for scalability: This allows the system to distribute the workload and handle large datasets efficiently. D.Data is stored in hybrid columnarformat to speed up analytic queries: The hybrid columnar format optimizes storage and speeds up query performance, especially for analytic workloads.

NEW QUESTION # 13
Which two methods can be used to stop a DB system? (Choose two.)

A. Execute the mysql db-system stop command from OCI CLI.
B. Run the shutdown command from a mysqladmin client logged in as the admin user.
C. Run the SHUTDOWN SQL statement from any connected client logged in as the admin user.
D. Use the STOP action on the DB system details page in the OCI Console.

Answer: A,D

Explanation:
You can stop a MySQL DB system using the following methods:
A:Use the STOP action on the DB system details page in the OCI Console: This is a straightforward way to stop the DB system via the Oracle Cloud Infrastructure web interface. D.Execute themysql db-system stop command from OCI CLI: This command uses the Oracle Cloud Infrastructure Command Line Interface to stop the DB system programmatically.

NEW QUESTION # 14
You want to create a new DB system with data import. How do you prepare the data?

A. Export the data into the file system with the mysqldump client utility.
B. Back up the database into an Object Storage bucket with MySQL Enterprise Backup.
C. Export the data into anObject Storage bucket with a MySQL Shell dump utility.
D. Export the data into the file system with a MySQL Shell dump utility

Answer: C

Explanation:
To prepare data for a new DB system with data import in OCI, you shouldexport the data into an Object Storage bucket with a MySQL Shell dump utility(Answer B). This method allows you to store the data in a scalable and durable object storage service before importing it into the new DB system.
Steps:
* Use MySQL Shell dump utility to export the data.
* Save the export files to an Object Storage bucket in OCI.
* Import the data from the Object Storage bucket into the new DB system.
References:
* MySQL Shell Documentation
* OCI Object Storage Documentation

NEW QUESTION # 15
You have obtained a new tenancy on Oracle Cloud Infrastructure. You first create a VCN by using the VCN Wizard, and then create a MySQL DB system. You want to create a Connection in Database tools to use the SQL Worksheet feature.
Which three steps are required? (Choose three.)

A. Import an X.509 certificate into the OCI vault.
B. Create an OCI password.
C. Create an encryption key.
D. Create an OCI secret.
E. Create an OCI vault.

Answer: A,B,D

Explanation:
To create a connection in Database Tools to use the SQL Worksheet feature, the following steps are required:
* Create an OCI password(Answer A): This password is necessary for authentication when connecting to the MySQL DB system.
* Create an OCI secret(Answer D): Secrets are used to store sensitive information like passwords securely. The secret will contain the database credentials.
* Import an X.509 certificate into the OCI vault(Answer E): This certificate is required for secure connections to the database, ensuring encrypted communication.
References:
* OCI Database Tools Documentation
* Using OCI Secrets
* X.509 Certificates Documentation

NEW QUESTION # 16
Which placement is NOT valid for a high-availability DB system? (Note: AD refers to availability domain and FD refers to fault domain.)

A. Primary instance: AD1-FD3; Secondary instance 1: AD1-FD2; Secondary instance 2: AD1-FD3
B. Primary instance: AD1-FD1; Secondary instance 1: AD2-FD2; Secondary instance 2: AD3-FD3
C. Primary instance: AD1-FD1; Secondary instance 1: AD1-FD2; Secondary instance 2: AD1-FD3
D. Primary instance: AD1-FD3; Secondary instance 1: AD2-FD2; Secondary instance 2: AD3-FD3

Answer: A

Explanation:
In a high-availability DB system, the placement of primary and secondary instances should ensure redundancy across different availability domains (ADs) and fault domains (FDs) to minimize downtime and data loss. The placement mentioned in option D is not valid because itplaces the primary and secondary instances in the same availability domain and fault domain, which does not provide high availability.

NEW QUESTION # 17
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