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Oracle 1z0-915-1 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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 3	Inbound Replication: For database administrators and replication experts, this section of the exam covers setting up and troubleshoot inbound replication and creating channels.
Topic 4	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 5	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 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	HeatWave Cluster: For database performance specialists and cloud architects, this section of the exam covers
Topic 8	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 9	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.

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Oracle MySQL HeatWave Implementation Associate Rel 1 Sample Questions (Q31-Q36):

NEW QUESTION # 31
Which table option defines a Lakehouse external table based on a CSV file?

A. ENGINE=lakehouse SECONDARY_ENGINE=rapid ENGINE_ATTRIBUTE='{"file": [{"region":
"us-ashburn-1", "namespace": "mytenant", "bucket": "bucket01", "name": "airport.csv"}] }'
B. ENGINE=csv SECONDARY_ENGINE=rapid ENGINE_ATTRIBUTE='{"file": [{"region":
"us-ashburn-1", "namespace": "mytenant", "bucket": "bucket01", "name": "airport.csv"}] }'
C. ENGINE=lakehouse SECONDARY_ENGINE=csv ENGINE_ATTRIBUTE='{"file": [{"region":
"us-ashburn-1", "namespace": "mytenant", "bucket": "bucket01", "name": "airport.csv"}] }'
D. ENGINE=csv SECONDARY_ENGINE=lakehouse ENGINE_ATTRIBUTE='{"file": [{"region":
"us-ashburn-1", "namespace": "mytenant", "bucket": "bucket01", "name": "airport.csv"}] }'

Answer: D

Explanation:
B:ENGINE=csv SECONDARY_ENGINE=lakehouse ENGINE_ATTRIBUTE='{"file": [{"region":
"us-ashburn-1", "namespace": "mytenant", "bucket": "bucket01", "name": "airport.csv"}] }': This table option defines a Lakehouse external table based on a CSV file. It specifies thecsvengine for the table and uses thelakehouseas the secondary engine, along with the file's location details in OCI Object Storage.

NEW QUESTION # 32
A DB system has been deleted successfully. Which two operations are allowed on the deleted DB system?
(Choose two.)

A. View the API call logs on the Audit page.
B. View the metrics.
C. Restore the DB system from an existing manual backup.
D. Change the storage size.
E. Create a manual backup.

Answer: A,C

Explanation:
When a DB system has been successfully deleted, the following operations are allowed:
* Restore the DB system from an existing manual backup(Answer C): Even after the DB system is deleted, you can restore it from any existing manual backups. This allows you to recover the data and configuration from a point-in-time backup.
* View the API call logs on the Audit page(Answer E): You can view the API call logs related to the deleted DB system on the Audit page. These logs provide a record of actions taken on the DB system, including the deletion event.
References:
* OCI Backup and Restore Documentation
* OCI Audit Documentation

NEW QUESTION # 33
You have an inbound replication channel that replicates data from one DB system to another DB system. Both DB systems are created with the default configuration.
You encountered the following error on the target DB system:

What is the possible cause?

A. The channel has been disabled for more than 2 hours.
B. The missingGTID set has been archived to object storage and is no longer available.
C. The administrator has deleted the binary log files from the source DB system.
D. The target DB system relay log file destination is full.

Answer: C

Explanation:
The error message indicates that the source has purged required binary logs, making it impossible to replicate the missing transactions. This happens when the administrator manually deletes binary log files from the source DB system, or the binary log expiration period is too short, causing automatic purging before the replica can fetch the transactions.

NEW QUESTION # 34
Which is true about dynamic variables in MySQL HeatWave configurations?

A. Dynamic variables in a custom configuration can be changed without copying the configuration to a new configuration.
B. Initialization variables are not dynamic.
C. Changes in dynamic variables require a server restart.
D. All user variables are dynamic.

Answer: A

Explanation:
In MySQL HeatWave configurations, dynamic variables can be changed without requiring the configuration to be copied to a new configuration. This allows for more flexible and immediate adjustments to system settings without the need for a server restart or creating a new configuration instance.

NEW QUESTION # 35
You create a new MySQL DB system. It fails because you use mysql.sys as the administrator username.
What is the reason?

A. The username can contain only uppercase characters.
B. The username must have at least 10 characters.
C. The username cannot contain non-alphanumeric characters, such as a period.
D. mysql.sys is a reserved username that cannot be used in customer-defined user accounts.

Answer: D

Explanation:
The MySQL usermysql.sysis a reserved username used by the system for internal purposes. It cannot be used as a customer-defined user account to prevent conflicts with the system operations and maintain the integrity of the database's internal workings.

NEW QUESTION # 36
......

Achieving the Oracle MySQL HeatWave Implementation Associate Rel 1 (1z0-915-1) certification can significantly impact your career progression and earning potential. This certification showcases your expertise and knowledge to employers, making you a valuable asset in the Oracle 1z0-915-1 industry. With the rapidly evolving nature of the Oracle world, staying up-to-date with the latest technologies and trends is crucial. The 1z0-915-1 Certification Exam enables you to learn these changes and ensures you remain current in your field.

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