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Well-Prepared 1z0-915-1 Valid Test Labs - Pass 1z0-915-1 Once - Perfect 1z0-915-1 Trustworthy Dumps

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Oracle 1z0-915-1 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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 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
  • HeatWave Cluster: For database performance specialists and cloud architects, this section of the exam covers
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
  • 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 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.

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Oracle MySQL HeatWave Implementation Associate Rel 1 Sample Questions (Q45-Q50):

NEW QUESTION # 45
You want to import data into a DB system with MySQL Shell util.loadDump().
Which option can speed up the load?

  • A. updateGtidSet: off
  • B. deferTableIndexes: all
  • C. showMetadata: false
  • D. skipBinlog: true

Answer: B

Explanation:
To speed up the data load into a DB system usingMySQL Shell util.loadDump(), you can use the deferTableIndexes: alloption (Answer D). This option defers the creation of indexes until after the data has been loaded, which can significantly improve the speed of the loading process.
Steps:
* Export your data using MySQL Shell dump utility.
* Useutil.loadDump()to import the data and specify thedeferTableIndexes: alloption.
* The data is loaded without building indexes initially, reducing the time required for the import.
* After the data load is complete, indexes are created in a batch process, which is more efficient than creating them during the data load.
References:
* MySQL Shell Dump & Load Documentation


NEW QUESTION # 46
Which three are features of MySQL AutoPilot? (Choose three.)

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

Answer: C,D,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 # 47
Automatic backup retention of a DB system is disabled. Which operation deletes all automatic backups of the DB system?

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

Answer: A

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 # 48
Which two are true about creating a Bastion service to connect to a MySQL DB system? (Choose two.)

  • A. The Bastion CIDR block allowlist must include the IP address of all valid client machines.
  • B. The Bastion service must be in the same VCN as the DB system.
  • C. The Bastion service must have a public IP address.
  • D. The Bastion CIDR block allowlist must include the IP address of the DB system.
  • E. TheBastion subnet must have an ingress rule to allow stateful connections on the MvSQL DB system port number.

Answer: A,E

Explanation:
When creating a Bastion service to connect to a MySQL DB system, the following are true:
* The Bastion CIDR block allowlist must include the IP address of all valid client machines(Answer C):
This ensures that only the IP addresses specified in the allowlist can access the Bastion service, enhancing security by restricting access to known clients.
* The Bastion subnet must have an ingress rule to allow stateful connections on the MySQL DB system port number(Answer E): This allows the Bastion service to communicate with the MySQL DB system by permitting traffic through the necessary ports.
References:
* OCI Bastion Service Documentation
* Setting Up Bastion with MySQL DB System


NEW QUESTION # 49
You can perform a node estimate when adding a HeatWave cluster to a DB system in OCI Console. Which two tasks are performed by the node estimate process? (Choose two.)

  • A. Generate a load command to activate Auto Parallel Load.
  • B. Generate a set of alter statements to load selected tables into the HeatWave cluster.
  • C. Estimate the number of OCPUs required to process selected user tables.
  • D. Estimate the memory required for each user table.
  • E. Estimate the disk storage required for each user table.

Answer: C,D

Explanation:
When performing a node estimate while adding a HeatWave cluster to a DB system in OCI Console, the process undertakes the following tasks:
* Estimate the number of OCPUs required to process selected user tables(Answer B): The node estimation process calculates the necessary OCPUs based on the size and complexity of the tables selected by the user. This ensures that the cluster has adequate processing power for efficient performance.
* Estimate the memory required for each user table(Answer C): This task involves determining the memory requirements for each table that will be loaded into the HeatWave cluster. This ensures that there is sufficient memory to handle the data and execute queries efficiently.
References:
* OCI Console Documentation on HeatWave
* MySQL HeatWave User Guide


NEW QUESTION # 50
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