AWS Certified Solutions Architect - Associate
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A company's infrastructure consists of Amazon EC2 instances and an Amazon RDS DB instance in a single AWS Region. The company wants to back up its data in a separate Region.
Which solution will meet these requirements with the LEAST operational overhead?
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UAnonymous
A
Use AWS Backup to copy EC2 backups and RDS backups to the separate Region.
B
Use Amazon Data Lifecycle Manager (Amazon DLM) to copy EC2 backups and RDS backups to the separate Region.
C
Create Amazon Machine Images (AMIs) of the EC2 instances. Copy the AMIs to the separate Region. Create a read replica for the RDS DB instance in the separate Region.
D
Create Amazon Elastic Block Store (Amazon EBS) snapshots. Copy the EBS snapshots to the separate Region. Create RDS snapshots. Export the RDS snapshots to Amazon S3. Configure S3 Cross-Region Replication (CRR) to the separate Region.
Explanation:
Explanation
Correct Answer: A
AWS Backup is a fully managed backup service that makes it easy to centralize and automate the backup of data across AWS services in the AWS Cloud and on premises. It provides:
- Single service for multiple AWS services - AWS Backup supports EC2 instances, EBS volumes, RDS databases, DynamoDB tables, EFS file systems, and more
- Cross-region backup copy - You can easily configure backup copies to be automatically replicated to another AWS Region
- Least operational overhead - AWS Backup handles all the underlying processes automatically, including:
- Scheduling backups
- Managing retention policies
- Copying backups to another Region
- Monitoring backup jobs
Why other options are not optimal:
B. Amazon DLM - While DLM can automate EBS snapshot creation and management, it only works for EBS volumes and EC2 instances. It doesn't natively support RDS database backups or cross-region copying of RDS backups.
C. AMIs and RDS read replicas - This approach has significant operational overhead:
- Creating AMIs requires manual or scripted processes
- Copying AMIs across regions is manual
- RDS read replicas are for read scaling, not backup purposes
- Read replicas don't provide point-in-time recovery capabilities
D. Manual EBS snapshots + RDS snapshots + S3 CRR - This involves multiple manual steps:
- Creating EBS snapshots
- Copying them to another region
- Creating RDS snapshots
- Exporting RDS snapshots to S3
- Configuring S3 Cross-Region Replication
- Managing all these processes separately
Key Benefits of AWS Backup:
- Centralized management - Single console for all backups
- Policy-based automation - Define backup policies once and apply to multiple resources
- Cross-region backup - Built-in capability to copy backups to another region
- Compliance and monitoring - Built-in reporting and compliance tools
- Cost optimization - Can help optimize storage costs with lifecycle policies
For a company wanting to back up both EC2 instances and RDS databases to a separate region with the least operational overhead, AWS Backup is the most appropriate solution as it provides a unified, automated approach for both services.
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