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Oracle 1z0-915-1 Exam Syllabus Topics:

Topic
Details

Topic 1

MySQL HeatWave Configurations: For database administrators and performance tuning specialists, this part of the exam covers creating custom configurations, comparing configurations, describing the effects of changing dynamic and non-dynamic variables, and updating a DB system configuration.

Topic 2

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 3

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 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

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

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 7

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 8

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 9

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 10

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 (Q16-Q21):

NEW QUESTION # 16
The following statements execute successfully:
CALL sys.ML_TRAIN('ml_data.iris', 'class', NULL, @model);
SELECT @model;
Which three are true? (Choose three.)

A. The statements validate the data set but do not create a model.
B. The generated model handle is shown in the output.
C. The statements create a classification model.
D. The target column is class.
E. The training data set is obtained from the ml_data table in the iris schema.

Answer: B,C,D

Explanation:
The statementsCALL sys.ML_TRAIN('ml_data.iris', 'class', NULL, @model);andSELECT @model;are used to create and retrieve a machine learning model in MySQL HeatWave AutoML. The following are true:
* The generated model handle is shown in the output(Answer B): After training the model, the handle (identifier) for the model is stored in the@modelvariable and can be retrieved with theSELECT
@model;statement.
* The statements create a classification model(Answer C): TheML_TRAINprocedure is used to create a classification model since the target column (class) indicates a classification problem.
* The target column is class(Answer E): The second argument in theML_TRAINcall specifies the target column for the machine learning model, which isclassin this case.
References:
* MySQL HeatWave AutoML Documentation
* ML_TRAIN Procedure Documentation

NEW QUESTION # 17
Which two are available when creating a new MySQL DB system in OCI Console? (Choose two.)

A. HeatWave cluster
B. High availability
C. Read replica
D. Lakehouse
E. Standalone server

Answer: B,E

Explanation:
When creating a new MySQL DB system in the OCI Console, you have the following options:
* High availability(Answer A): This option allows you to create a DB system that can automatically fail over to a standby instance in case of hardware or software failure, ensuring minimal downtime.
* Standalone server(Answer C): This option lets you create a DB system with a single instance, suitable for workloads that do not require high availability or read replicas.
References:
* OCI MySQL Database Service Documentation
* MySQL High Availability

NEW QUESTION # 18
You have successfully enabled high availability of a stand-alone DB system. Which is true?

A. The DB system provides new port numbers on the same endpoint to connect to the secondary instances for read-only connections.
B. The DB system performs load balancing by distributing client connections to all instances.
C. The DB system provides new endpoints to connect to the secondary instances for read-only connections.
D. The DB system has three instances running in different availability or fault domains.

Answer: D

Explanation:
When high availability is enabled for a stand-alone DB system,the DB system has three instances running in different availability or fault domains(Answer D).
* High Availability Configuration: This setup involves creating multiple instances of the DB system across different availability or fault domains to ensure redundancy and minimize the risk of downtime due to hardware or network failures.
* Instances: Typically, there are three instances-one primary and two replicas-ensuring that the system can failover seamlessly if one instance goes down.
References:
* OCI MySQL High Availability

NEW QUESTION # 19
Automatic backup retention of a DB system is disabled. Which operation deletes all automatic backups of the DB system?

A. Disabling delete protection
B. Deleting the DB system
C. Disabling point-in-time recovery
D. Enabling point-in-time recovery

Answer: B

Explanation:
When automatic backup retention of a DB system is disabled,deleting the DB system(Answer C) will delete all automatic backups of the DB system.
* Automatic Backups: These are backups created automatically by the OCI service to ensure data protection.
* Backup Deletion: If automatic backups are disabled and you delete the DB system, all associated automatic backups are also deleted. This operation is irreversible, and you should ensure that necessary backups are taken before deleting the DB system.
References:
* OCI MySQL Database Service Backup and Restore

NEW QUESTION # 20
You run this command to connect successfully to a DB system:
mysqlsh john@10.0.1.122 --auth-method=authentication_oci_client
Why does the command NOT require a password?

A. The correct password is saved in the local MySQL Shell secret store.
B. The credential is stored in an OCI vault secret.
C. The correct API key-pair is specified in the -/. oci. config file.
D. The operating system user credential is used to authenticate with the DB system.

Answer: C

Explanation:
The commandmysqlsh john@10.0.1.122 --auth-method=authentication_oci_clientdoes not require a password because it uses the OCI (Oracle Cloud Infrastructure) client authentication method. This method relies on the correct API key-pair specified in the~/.oci/configfile. This file contains the necessary credentials (user OCID, tenancy OCID, API keys, etc.) to authenticate with the OCI environment without needing a password for each connection.

NEW QUESTION # 21
......

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