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Oracle 1z0-915-1模擬問題集、1z0-915-1問題サンプル

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Oracle 1z0-915-1 認定試験の出題範囲：

トピック	出題範囲
トピック 1	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.
トピック 2	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.
トピック 3	Inbound Replication: For database administrators and replication experts, this section of the exam covers setting up and troubleshoot inbound replication and creating channels.
トピック 4	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.
トピック 5	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.
トピック 6	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.
トピック 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.
トピック 8	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.
トピック 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 認定 1z0-915-1 試験問題 (Q25-Q30):

質問 # 25
You want to replicate data from an on-premises MySQL server to a MySQL DB system. The on-premises MySQL server runs in your corporate network. The MySQL server accepts incoming connections from the Internet on a public IP endpoint.
The DB system runs in Oracle Cloud Infrastructure. The DB system endpoint is connected to a privatesubnet of a VCN.
Which network configuration is required?

A. Create a service gateway in the VCN and configure the DB system subnet to route Internet-bound traffic to the service gateway.
B. Configure an OCI network load balancer to accept incoming connections on a public IP and route to the DB system private IP address.
C. Create a NAT gateway in the VCN and configure the DB system subnet to route Internet-bound traffic to the NAT gateway.
D. Create an Internet gateway in the VCN and configure the DB system subnet to route Internet-bound traffic to the Internet gateway.

正解：C

解説：
To replicate data from an on-premises MySQL server to a MySQL DB system running in Oracle Cloud Infrastructure (OCI), where the DB system is connected to a private subnet of a Virtual Cloud Network (VCN), you need to enable the DB system to communicate with the Internet securely. The correct configuration is tocreate a NAT gateway in the VCN and configure the DB system subnet to route Internet-bound traffic to the NAT gateway(Answer D).
* NAT Gateway: A Network Address Translation (NAT) gateway enables instances in a private subnet to initiate outbound traffic to the Internet, but it prevents the Internet from initiating connections to those instances.
* Route Table Configuration: You need to update the route table for the private subnet to direct traffic destined for the Internet to the NAT gateway.
Steps:
* Create a NAT gateway in the OCI Console.
* Update the route table associated with the private subnet to include a route rule that directs all Internet-bound traffic (0.0.0.0/0) to the NAT gateway.
References:
* OCI NAT Gateway Documentation
* Configuring Routing for Private Subnets

質問 # 26
You have a MySQL DB system with five active read replicas. The workload consists of 5% writes and 95% reads.
Which connection method provides the fastest query response time?

A. Connect to the read replica load balancer to perform read-only operations.
B. Connect to a specific read replica to perform read-only operations.
C. Connect to the source DB system to perform read-only operations.
D. Connect to the read replica load balancer to perform read/write operations.

正解：A

解説：
For a MySQL DB system with five active read replicas and a workload consisting mostly of reads, the fastest query response time is achieved by:
C:Connect to the read replica load balancer to perform read-only operations: The read replica load balancer distributes the read workload across all replicas, optimizing performance and response time.

質問 # 27
The following statements are executed successfully:

Which two are true? (Choose two.)

A. The fields in the airport.tbl file are delimited by comma.
B. Every row in the airport table has a unique airport_id value.
C. The airport.tbl file is in CSV format.
D. The data placement key of the airport table is airport_id.
E. The data of the airport table is loaded into the MySQL DB system.

正解：D、E

解説：
Based on the provided SQL statements, the following two are true:
* The data placement key of the airport table is airport_id(Answer A): The primary keyairport_idis used as the data placement key in theairporttable. This means that the data in the table is organized based on theairport_idvalues.
* The data of the airport table is loaded into the MySQL DB system(Answer D): TheALTER TABLE airport SECONDARY_LOAD;statement successfully loads the data from the specified object storage file into the MySQL DB system.
References:
* MySQL HeatWave Documentation
* MySQL Engine Attributes

質問 # 28
You want to create a second user called admin2 with the same privileges as the administrator specified when creating the DB system.
Which statement helps you achieve this?

A. CREATE USER admin2 IDENTIFIED BY 'Password' DEFAULT ROLE 'administrator';
B. CREATE USER admin2 IDENTIFIED BY 'Password'; GRANT SUPER ON *.* TO admin2 WITH GRANT OPTION;
C. CREATE USER admin2 IDENTIFIED BY 'Password'; GRANT ALL PRIVILEGES ON *.* TO admin2 WITH GRANT OPTION;
D. CREATE USER admin2 IDENTIFIED BY 'Password'; GRANT AUDIT_ADMIN,
BACKUP_ADMIN, SESSION_VARIABLES_ADMIN ON *.* TO admin2 WITH GRANT OPTION;

正解：C

解説：
To create a second user calledadmin2with the same privileges as the administrator, you can use the following statement:
D:CREATE USER admin2 IDENTIFIED BY 'Password'; GRANT ALL PRIVILEGES ON *.* TO admin2 WITH GRANT OPTION; This creates the useradmin2and grants all privileges, along with the ability to grant those privileges to other users.

質問 # 29
Which type of configuration variables CANNOT be modified in MySQL custom configurations?

A. Default user variables
B. Initialization variables
C. User variables
D. System variables

正解：B

解説：
Initialization variables(Answer A) cannot be modified in MySQL custom configurations. These variables are set at the start of the MySQL service and are not changeable without restarting the service.
* Initialization variables are parameters that define how the MySQL server initializes.
* Changes to these variables require restarting the MySQL server to take effect.
* Examples include variables likeinnodb_buffer_pool_size, which determine memory allocation settings on startup.
References:
* MySQL Configuration Variables Documentation

質問 # 30
......

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Lee Tate Lee Tate

Biography

Oracle 1z0-915-1模擬問題集、1z0-915-1問題サンプル

Oracle 1z0-915-1 認定試験の出題範囲：

1z0-915-1問題サンプル & 1z0-915-1合格率

Oracle MySQL HeatWave Implementation Associate Rel 1 認定 1z0-915-1 試験問題 (Q25-Q30):

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Lee Tate Lee Tate

Biography

Oracle 1z0-915-1模擬問題集、1z0-915-1問題サンプル

Oracle 1z0-915-1 認定試験の出題範囲：

1z0-915-1問題サンプル & 1z0-915-1合格率

Oracle MySQL HeatWave Implementation Associate Rel 1 認定 1z0-915-1 試験問題 (Q25-Q30):

Address

Important Link

Student Info

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