VALID 1Z0-915-1 TEST DISCOUNT | 1Z0-915-1 TEST SAMPLE ONLINE

Valid 1z0-915-1 Test Discount | 1z0-915-1 Test Sample Online

Valid 1z0-915-1 Test Discount | 1z0-915-1 Test Sample Online

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Oracle 1z0-915-1 Exam Syllabus Topics:

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

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Oracle MySQL HeatWave Implementation Associate Rel 1 Sample Questions (Q38-Q43):

NEW QUESTION # 38
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 must have at least 10 characters.
  • B. The username cannot contain non-alphanumeric characters, such as a period.
  • C. The username can contain only uppercase characters.
  • 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 # 39
You want to migrate an on-premises MySQL database to MySQL HeatWave by exporting the MySQL database with MySQL Shell util.dumpInstance.
What is the purpose of the ocimds: true option?

  • A. It launches a new DB system and imports the data concurrently with the export operation.
  • B. It stores the exported files in OCI Object Storage.
  • C. It enables all MySQL HeatWave compatibility options.
  • D. It returns an error if the database has any incompatibilities with MySQL HeatWave.

Answer: B

Explanation:
The purpose of theocimds: trueoption in theutil.dumpInstancecommand is to:
D:It stores the exported files in OCI Object Storage: This option ensures that the exported database files are stored directly in Oracle Cloud Infrastructure Object Storage.


NEW QUESTION # 40
You create a MySQL DB system with default port numbers, and attach it to a subnet.
Which configuration is required on the subnet to enable client applications to connect to the DB system?

  • A. Create an egress rule that allows stateful connections on port 3306 and 33060.
  • B. Create an egress rule that allows stateless connections on port 3306 and 33060.
  • C. Create an ingress rule that allows stateless connections on port 3306 and 33060.
  • D. Create an ingress rule that allows stateful connections on port 3306 and 33060.

Answer: D

Explanation:
To enable client applications to connect to a MySQL DB system that uses default port numbers and is attached to a subnet, you need tocreate an ingress rule that allows stateful connections on port 3306 and 33060(Answer C).
* Ingress Rule: An ingress rule specifies the types of inbound connections that are allowed to a resource within a subnet.
* Stateful Connections: Stateful connections keep track of the state of network connections passing through them, allowing return traffic to pass automatically.
Steps:
* Navigate to the Virtual Cloud Network (VCN) in the OCI Console.
* Open the subnet to which the MySQL DB system is attached.
* Add an ingress rule to the subnet's security list to allow traffic on port 3306 (MySQL) and 33060 (MySQL X Protocol).
* Ensure the rule is stateful to maintain the connection state.
References:
* OCI Networking Documentation
* MySQL X Protocol Documentation


NEW QUESTION # 41
You have successfully provisioned a MySQL DB system on Oracle Cloud Infrastructure by using OCI Console. You have installed the standard MySQL client libraries and MySQL Shell on your workstation that is not connected to any VPN, FastConnect, or SSH tunnel.
You CANNOT connect directly to the DB system endpoint from your workstation connected to the Internet.
What is the reason?

  • A. MySQL DB system cannot use the standard MySQL client libraries.
  • B. MySQL DB system endpoint does not have a public IP address.
  • C. MySQL DB system allows only SSL-encrypted connections.
  • D. MySQL DB system allows only connections through a proxy server.

Answer: B

Explanation:
If you cannot connect directly to the MySQL DB system endpoint from your workstation connected to the Internet, the reason is thatMySQL DB system endpoint does not have a public IP address(Answer B).
* Private Subnet: The MySQL DB system is provisioned in a private subnet, which means it is not directly accessible from the Internet.
* Network Accessibility: To access the DB system, you need to establish a secure connection via a VPN, FastConnect, or SSH tunnel.
References:
* Connecting to a MySQL DB System
* OCI Networking Documentation


NEW QUESTION # 42
Which feature do you use to copy transactions from an on-premises MySQL instance to a DB system?

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

Answer: C

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 # 43
......

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