AWS-CSAP Pass Marks.pdf

Amazon Route 53 health checks and routing policies allow for failover and latency-based routing. When a health check fails, Route 53 chooses another resource record set based on weight and checks its health. If the health check for a latency alias resource record set fails, Route 53 stops responding to queries using any of the weighted resource record sets in the alias target.

To implement an order fulfillment process, use Amazon SWF with an Auto Scaling group of activity workers and a decider instance, and use Amazon SES to send emails to customers.

For a read-only news reporting site with unpredictable traffic demands, use stateless instances for the web and application tier, synchronized using ElastiCache Memcached, in an autoscaling group monitored with CloudWatch, and RDS with read replicas.

To configure security for a photo-sharing mobile app storing pictures in an Amazon S3 bucket, use IAM policies, bucket policies, and CORS to control access and ensure secure uploads and downloads.