Q21 — AWS SAA-C03 Ch.15

Question 21 of 100 | ← Chapter 15

Q1121. A company is designing a non-production application that runs on an Amazon EC2 instance that runs Windows Server.The EC2 instance has an Amazon Elastic Block Store(Amazon EBS) volume attached.The EC2 instance also has an instance profile. The instance needs to download and process large files from an Amazon S3 bucket.Which solution will meet these requirements in the MOST operationally efficient way?

• A. Use the AWS CLI to transfer the files from Amazon S3 to the EBS volume. ✓
• B. Mount the S3 bucket as a file system on the EC2 instance by using Amazon Elastic File System (Amazon EFS).
• C. Use AWS Batch jobs to transfer the files from Amazon S3 to the EBS volume.
• D. Replace the EBS volume with an instance store volume. Use AWS Batch jobs to transfer the files from Amazon S3 to the instance store volume.

Correct Answer: A. Use the AWS CLI to transfer the files from Amazon S3 to the EBS volume.

Explanation

The best solution to meet the requirements for downloading and processing large files from an Amazon S3 bucket in the most operationally efficient way is:A. Use the AWS CLI to transfer the files from Amazon S3 to the EBS volume.Explanation:AWS CLI: Using the AWS Command Line Interface (CLI) provides a straightforward and efficient way to transfer files directly from S3 to the EBS volume attached to the EC2 instance. It allows for quick and easy command execution without needing complex configurations.- This method is operationally efficient as it doesn't require additional services or infrastructure changes. The CLI can handle large file transfers effectively while maintaining a simple setup.Why Other Options Are Not Suitable:B: Mounting the S3 bucket as a file system using Amazon EFS would introduce unnecessary complexity and potential performance issues. EFS is not designed for this type of access and may not provide the best performance for large file transfers.C: Using AWS Batch jobs for this task is overkill for simply transferring files. AWS Batch is intended for running batch processing jobs, which is unnecessary for the straightforward file transfer operation.D: Replacing the EBS volume with an instance store volume is not a viable solution, as instance store volumes are ephemeral and can lead to data loss if the instance fails or is stopped. Additionally, using AWS Batch jobs for a simple file transfer is not efficient.Thus, option A is the most efficient and effective solution for downloading and processing large files from S3 in this scenario.