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Disaster Recovery Strategy for AWS: A SAA-C03 Exam Walkthrough
Explore a critical AWS SAA-C03 exam question on disaster recovery strategies and learn how to select the right services.
You may find disaster recovery strategies tricky on the AWS Certified Solutions Architect - Associate exam. Many candidates struggle to identify which services work best together for restoring applications quickly after a disaster.
The question
You are designing a disaster recovery strategy for an application hosted on AWS. The application requires the ability to recover quickly from a disaster. Which AWS services can be combined to create an effective disaster recovery solution?
- A. Amazon S3 and AWS Elastic Beanstalk.
- B. AWS Backup and Amazon RDS.
- C. Amazon Route 53 and Amazon S3.
- D. AWS CloudFormation and Amazon EC2.
Think before you scroll
Before you look at the answer, consider what each service does. Focus on speed of recovery and data integrity. Not all services are designed for disaster recovery.
The answer
The correct option is B. AWS Backup and Amazon RDS. This combination offers automated backups and quick recovery options, essential for ensuring data integrity and availability after a disaster.
Why the other options lose
- A. Amazon S3 and AWS Elastic Beanstalk. While S3 is excellent for storage, it does not handle backups for applications. Elastic Beanstalk is for application deployment, not disaster recovery.
- C. Amazon Route 53 and Amazon S3. Route 53 is a DNS service and S3 is a storage service. This option lacks the necessary components for a solid disaster recovery plan, focusing instead on routing and storage.
- D. AWS CloudFormation and Amazon EC2. CloudFormation automates infrastructure deployment, and EC2 provides compute resources. However, this option does not address data recovery, which is critical in a disaster scenario.
The concept behind it
An effective disaster recovery strategy involves services that can ensure fast recovery of both data and applications. AWS Backup and Amazon RDS are specifically designed to work together for automated backups and rapid restoration, which is vital during disasters.
Exam trap to remember
Remember: For disaster recovery, focus on services that prioritize both data integrity and speed of recovery. AWS Backup and RDS are your go-to combination for a reliable solution.