DOP-C02 · Question #390
A company needs to update its order processing application to improve resilience and availability. The application requires a stateful database and uses a single-node Amazon RDS DB instance to store c
The correct answer is D. Modify the RDS DB instance to be a Multi-AZ deployment. Verify automatic failover to the standby. Enabling Multi-AZ on the existing RDS instance provisions a synchronous standby in a different Availability Zone. AWS automatically fails over to the standby if the primary becomes unavailable, delivering high availability with minimal operational effort.
Question
A company needs to update its order processing application to improve resilience and availability. The application requires a stateful database and uses a single-node Amazon RDS DB instance to store customer orders and transaction history. A DevOps engineer must make the database highly available. Which solution will meet this requirement?
Options
- AMigrate the database to Amazon DynamoDB global tables. Configure automatic failover between
- BMigrate the database to Amazon EC2 instances in multiple Availability Zones. Use Amazon
- CUse the RDS DB instance as the source instance to create read replicas in multiple Availability
- DModify the RDS DB instance to be a Multi-AZ deployment. Verify automatic failover to the standby
How the community answered
(35 responses)- A14% (5)
- B9% (3)
- C6% (2)
- D71% (25)
Explanation
Enabling Multi-AZ on the existing RDS instance provisions a synchronous standby in a different Availability Zone. AWS automatically fails over to the standby if the primary becomes unavailable, delivering high availability with minimal operational effort.
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