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1z0-915-1 Excellect Pass Rate, Official 1z0-915-1 Practice Test

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Oracle 1z0-915-1 Exam Syllabus Topics:

Topic
Details

Topic 1

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 2

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 3

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

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

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 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

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.

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Oracle MySQL HeatWave Implementation Associate Rel 1 Sample Questions (Q65-Q70):

NEW QUESTION # 65
Which three are features of MySQL AutoPilot? (Choose three.)

A. Auto provisioning
B. Auto encoding
C. Auto backup
D. Auto thread pooling
E. AutoML

Answer: A,B,E

Explanation:
The following are features of MySQL AutoPilot:
* Auto encoding(Answer C): MySQL AutoPilot automatically determines the best encoding for data to optimize storage and performance.
* Auto provisioning(Answer D): MySQL AutoPilot can automatically provision additional resources based on workload demands, ensuring optimal performance.
* AutoML(Answer E): MySQL AutoPilot includes AutoML capabilities, which automate the process of machine learning model selection, training, and deployment.
References:
* MySQL HeatWave AutoPilot Documentation
* MySQL AutoPilot Features

NEW QUESTION # 66
Which feature do you use to copy transactions from an on-premises MySQL instance to a DB system?

A. Inbound replication
B. Read replica
C. Outbound replication
D. HeatWave cluster

Answer: A

Explanation:
To copy transactions from an on-premises MySQL instance to a DB system, you useinbound replication(Answer B).
* Inbound Replication: This feature allows the MySQL DB system to receive and apply changes (transactions) from an external MySQL instance.
* Replication Configuration: You need to set up replication between the on-premises MySQL instance and the MySQL DB system by configuring the master (on-premises) and the slave (DB system) appropriately.
References:
* MySQL Replication Documentation
* OCI MySQL Database Service Documentation

NEW QUESTION # 67
Which three operations can be performed on a MySQL HeatWave backup? (Choose three.)

A. Move an active backup to another compartment.
B. Change the retention period of an active manual backup.
C. Restore an active backup to a new DB system in another region.
D. Delete an active manual backup when point-in-time recovery is enabled on the DB system.
E. Change the retention period of an active automatic backup.

Answer: A,B,C

Explanation:
Three operations that can be performed on a MySQL HeatWave backup are:
B:Change the retention period of an active manual backup: You can adjust how long the backup is retained.
C:Restore an active backup to a new DB system in another region: You can restore backups to different regions for disaster recovery or data migration. E.Move an active backup to another compartment: You can organize and manage backups by moving them to different compartments.

NEW QUESTION # 68
You want to restore the backup of a stand-alone DB system to a new DB system.
Which two changes are allowed? (Choose two.)

A. Use a different subnet for the new DB system.
B. Use a different shape for the new DB system.
C. Use a different tenancy for the new DB system.
D. Use a smaller data storage size for the new DB system.
E. Use a different region for the new DB system.

Answer: A,B

Explanation:
When restoring the backup of a stand-alone DB system to a new DB system, the following changes are allowed:
* Use a different subnet for the new DB system(Answer B): You can select a different subnet within the same VCN or a different VCN for the new DB system, providing flexibility in network configuration.
* Use a different shape for the new DB system(Answer C): You can choose a different compute shape for the new DB system, allowing you to scale the compute resources according to the requirements.
References:
* OCI MySQL Database Service Backup and Restore Documentation

NEW QUESTION # 69
Why would you select "Source cannot use GTID auto-positioning" when creating a channel?

A. The binary log offset is unknown.
B. Some tables have no primary key
C. The target DB system is a high-availability DB system.
D. The source gtid mode is OFF.

Answer: D

Explanation:
When creating a replication channel and selecting "Source cannot use GTID auto-positioning", it typically indicates that the source's GTID mode is off. GTID (Global Transaction Identifier) auto-positioning allows for automated recovery and positioning of transactions in replication, but it requires that GTID mode be enabled on the source database.

NEW QUESTION # 70
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