A solutions architect is building a web application that uses an Amazon RDS for PostgreSQL DB instance. The DB instance is expected to receive many more reads than writes. The solutions architect needs to ensure that the large amount of read traffic can be accommodated and that the DB instance is highly available.
Which steps should the solutions architect take to meet these requirements? (Choose three.)

Question

A solutions architect is building a web application that uses an Amazon RDS for PostgreSQL DB instance. The DB instance is expected to receive many more reads than writes. The solutions architect needs to ensure that the large amount of read traffic can be accommodated and that the DB instance is highly available.

Which steps should the solutions architect take to meet these requirements? (Choose three.)

Ed Quinn · Accepted Answer

Create multiple read replicas in different Availability Zones.

Ed Quinn · Accepted Answer

Create an Application Load Balancer (ALB) and put the read replicas behind the ALB.

Ed Quinn · Accepted Answer

Configure an Amazon CloudWatch alarm to detect a failed read replicas. Set the alarm to directly invoke an AWS Lambda function to delete its Route 53 record set.

Ed Quinn · Answer

Create multiple read replicas and put them into an Auto Scaling group.

Ed Quinn · Answer

Create an Amazon Route 53 hosted zone and a record set for each read replica with a TTL and a weighted routing policy.

Ed Quinn · Answer

Configure an Amazon Route 53 health check for each read replica using its endpoint.

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