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Answer: Snapshot EC2 EBS volumes every 2 hours and use RDS automated backups with point-in-time recovery.
The correct answer is D. This solution meets the company's RPO of 2 hours by taking snapshots of the EC2 instances' EBS volumes every 2 hours and enabling automated backups of the Amazon RDS for PostgreSQL with point-in-time recovery. This setup ensures that the entire configuration, both at the web tier and database tier, adheres to the RPO and ensures scalability and optimized resource utilization. Option A does not cover point-in-time recovery for RDS, Option B is close but does not explicitly mention point-in-time recovery, and Option C talks about retaining AMIs which is not necessary for stateless web applications.
Author: LeetQuiz Editorial Team
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A company requires a scalable and resource-optimized backup strategy for a stateless web application on EC2 with an AutoScaling group and a PostgreSQL RDS database, without local storage needs, and an RPO of 2 hours.
A
Snapshot EC2 EBS volumes and the database every 2 hours.
B
Implement a snapshot lifecycle policy for EBS and enable RDS automated backups.
C
Maintain latest AMIs for web/app tiers and use RDS automated backups with point-in-time recovery.
D
Snapshot EC2 EBS volumes every 2 hours and use RDS automated backups with point-in-time recovery.
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