SAA-C03 Q316 · DR

Question

A company runs an application on several Amazon EC2 instances that store persistent data on an Amazon Elastic File System (Amazon EFS) file system. The company needs to replicate the data to another AWS Region by using an AWS managed service solution. Which solution will meet these requirements MOST cost-effectively?

Accepted Answer

**Option D: AWS Backup with cross-Region replication** meets all requirements:

1. **AWS Managed Service**: AWS Backup is a fully managed backup service — no custom scripts, no self-managed infrastructure. It directly satisfies the 'AWS managed service solution' requirement.

2. **Cross-Region Replication**: AWS Backup natively supports **cross-Region copy** as part of backup rules. You define a backup plan, add a rule with a copy action targeting another Region, and AWS handles the rest.

3. **EFS Support**: Amazon EFS is a supported resource type in AWS Backup. You simply assign the EFS file system to the backup plan.

4. **Cost-Effectiveness**: AWS Backup charges only for backup storage and data transfer. There's no need for intermediate storage (like S3), no extra compute resources, an

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📘 Key Concepts

🏗️ Architecture

⚙️ Operations

💰 Cost

🔒 Security

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