Q71 — AWS SAA-C03 Ch.17

Question 71 of 89 | ← Chapter 17

Q1371. A company hosts an application on AWS. The application has generated approximately 2.5 TB of data over the previous 12 years. The company currently stores the data on Amazon EBSThe company wants a cost-effective backup solution for long-term storage. The company must be able to retrieve the data within minutes when required for audits.Which solution will meet these requirements?

Correct Answer: C. Create an Amazon S3 bucket. Use the S3 Glacier Flexible Retrieval storage class to back up the data.

Explanation

Let's analyze each option based on the requirements of cost - effectiveness, long - term storage, and the ability to retrieve data within minutes for audits:Option A: Create EBS snapshots to back up the dataAmazon EBS snapshots are point - in - time copies of EBS volumes. While they are useful for backing up EBS data, they are not the most cost - effective solution for long - term storage of 2.5 TB of data over many years. EBS snapshots are stored in Amazon S3, but the cost structure is designed more for short - to medium - term backup and recovery scenarios rather than long - term archival. Additionally, restoring large amounts of data from EBS snapshots can be time - consuming and may not meet the requirement of retrieving data within minutes in all cases. So, this option is not ideal.Option B: Create an Amazon S3 bucket. Use the S3 Glacier Deep Archive storage class to back up the dataThe S3 Glacier Deep Archive storage class is designed for long - term data archiving with the lowest storage cost among S3 storage classes. However, the retrieval time for data stored in S3 Glacier Deep Archive can be several hours (typically 12 hours or more). This does not meet the requirement of retrieving data within minutes for audits. So, this option is incorrect.Option C: Create an Amazon S3 bucket. Use the S3 Glacier Flexible Retrieval storage class to back up the dataThe S3 Glacier Flexible Retrieval storage class offers low - cost long - term storage. It has different retrieval options, including expedited retrieval which can retrieve data within 1 - 5 minutes. This meets the requirement of being able to retrieve the data within minutes when required for audits. Also, it is more cost - effective for long - term storage compared to EBS snapshots and standard S3 storage classes. So, this option is correct.Option D: Create an Amazon EFS file system to back up the data Amazon EFS (Elastic File System) is a scalable, fully managed file storage service. It is not primarily designed as a backup solution for long - term storage. EFS is more suitable for providing shared file storage for multiple EC2 instances. The cost of using EFS for long - term storage of 2.5 TB of data over 12 years would be relatively high compared to using S3 Glacier Flexible Retrieval. Moreover, it does not offer the same level of cost - optimized long - term archival features as S3 Glacier. So, this option is incorrect.Therefore, the solution that will meet the requirements is to create an Amazon S3 bucket and use the S3 Glacier Flexible Retrieval storage class to back up the data, and the answer is C.