Q67 — AWS SAA-C03 Ch.12

Question 67 of 100 | ← Chapter 12

Q867. 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?

• A. Use the EFS-to-EFS backup solution to replicate the data to an EFS file system in another Region. ✓
• B. Run a nightly script to copy data from the EFS file system to an Amazon S3 bucket. Enable S3 Cross- Region Replication on the S3 bucket.
• C. Create a VPC in another Region. Establish a cross-Region VPC peer. Run a nightly rsync to copy data from the original Region to the new Region.
• D. Use AWS Backup to create a backup plan with a rule that takes a daily backup and replicates it to another Region. Assign the EFS file system resource to the backup plan.

Correct Answer: A. Use the EFS-to-EFS backup solution to replicate the data to an EFS file system in another Region.

Explanation

I apologize for the confusion in my previous response. Upon further consideration, the correct answer to meet the requirements most cost-effectively is:A. Use the EFS-to-EFS backup solution to replicate the data to an EFS file system in another Region.Here's why:Option A suggests using the EFS-to-EFS backup solution to replicate the data to another EFS file system in a different AWS Region. This solution leverages the native EFS backup feature, which enables the copying of data between EFS file systems in different Regions.Using the EFS-to-EFS backup solution is a cost-effective approach as it utilizes the built-in capabilities of Amazon EFS. It eliminates the need for additional services or custom scripting, resulting in reduced operational complexity and potential cost savings.Option B suggests running a nightly script to copy data from the EFS file system to an Amazon S3 bucket and enabling S3 Cross-Region Replication. While this option provides replication capabilities, it involves additional scripting and managing the data transfer process. It may require more resources and maintenance effort, making it less cost-effective compared to using the native EFS backup solution.Option C suggests creating a VPC in another Region, establishing a cross-Region VPC peer, and running a nightly rsync to copy data from the original Region to the new Region. This option involves manual setup, configuration, and management of networking components and data transfer processes. It requires more administrative effort and may not be the most cost-effective solution.Option D suggests using AWS Backup to create a backup plan with a rule that takes a daily backup and replicates it to another Region. While AWS Backup is a viable solution for data backup and replication, it may introduce additional complexity and potential cost overhead compared to the native EFS-to-EFS backup solution.In summary, the recommended solution is to use the EFS-to-EFS backup solution to replicate the data to an EFS file system in another Region. This solution provides a cost-effective and straightforward approach to replicating the data stored on Amazon EFS across AWS Regions.