AWS Certified Solutions Architect - Associate
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Ultimate access to all questions.
A business-critical web application on EC2 instances with an Application Load Balancer and an Auto Scaling group uses a single-zone Aurora PostgreSQL database. The company seeks a highly available setup with minimal downtime and data loss, and minimal operational effort. What is the optimal solution?
A
Distribute EC2 instances across different AWS Regions, implement Route 53 health checks for traffic redirection, and enable Aurora PostgreSQL Cross-Region Replication.
B
Expand the Auto Scaling group to multiple Availability Zones, configure the database in Multi-AZ mode, and integrate an Amazon RDS Proxy for the database.
C
Maintain the Auto Scaling group in a single Availability Zone, create hourly database snapshots, and establish a recovery process from these snapshots upon failure.
D
Deploy the Auto Scaling group across multiple AWS Regions, store application data in Amazon S3, and use S3 Event Notifications to invoke an AWS Lambda function for database data entry.