Topic 1 Question 182
A company wants to migrate its MySQL database from on premises to AWS. The company recently experienced a database outage that significantly impacted the business. To ensure this does not happen again, the company wants a reliable database solution on AWS that minimizes data loss and stores every transaction on at least two nodes.
Which solution meets these requirements?
Create an Amazon RDS DB instance with synchronous replication to three nodes in three Availability Zones.
Create an Amazon RDS MySQL DB instance with Multi-AZ functionality enabled to synchronously replicate the data.
Create an Amazon RDS MySQL DB instance and then create a read replica in a separate AWS Region that synchronously replicates the data.
Create an Amazon EC2 instance with a MySQL engine installed that triggers an AWS Lambda function to synchronously replicate the data to an Amazon RDS MySQL DB instance.
ユーザの投票
コメント(15)
- 正解だと思う選択肢: B
Amazon RDS MySQL DB instance with Multi-AZ functionality enabled to synchronously replicate the data Standby DB in Multi-AZ- synchronous replication
Read Replica always asynchronous. so option C is ignored.
👍 13rjam2022/11/16 Multi-AZ will give at least two nodes as required by the question. The answer is B.
Amazon RDS provides high availability and failover support for DB instances using Multi-AZ deployments with a single standby DB instance. https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.MultiAZSingleStandby.html
👍 3bammy2022/12/18I curios to know why A isn't right. Is it just that it would take more effort?
👍 3JayBee652023/01/08
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