Topic 1 Question 464
A company hosts an online shopping application that stores all orders in an Amazon RDS for PostgreSQL Single-AZ DB instance. Management wants to eliminate single points of failure and has asked a solutions architect to recommend an approach to minimize database downtime without requiring any changes to the application code.
Which solution meets these requirements?
Convert the existing database instance to a Multi-AZ deployment by modifying the database instance and specifying the Multi-AZ option.
Create a new RDS Multi-AZ deployment. Take a snapshot of the current RDS instance and restore the new Multi-AZ deployment with the snapshot.
Create a read-only replica of the PostgreSQL database in another Availability Zone. Use Amazon Route 53 weighted record sets to distribute requests across the databases.
Place the RDS for PostgreSQL database in an Amazon EC2 Auto Scaling group with a minimum group size of two. Use Amazon Route 53 weighted record sets to distribute requests across instances.
ユーザの投票
コメント(5)
- 正解だと思う選択肢: A
i guess aa
👍 3nosense2023/05/16 - 正解だと思う選択肢: A
Compared to other solutions that involve creating new instances, restoring snapshots, or setting up replication manually, converting to a Multi-AZ deployment is a simpler and more streamlined approach with lower overhead.
Overall, option A offers a cost-effective and efficient way to minimize database downtime without requiring significant changes or additional complexities.
👍 2LONGMEN2023/05/18 A for HA, but also read replica can convert itself to master if the master is down... so not sure if C?
👍 1Efren2023/05/17
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