AWS Certified Data Engineer – Associate (DEA-C01) — Question 100

An insurance company stores transaction data that the company compressed with gzip.

The company needs to query the transaction data for occasional audits.

Which solution will meet this requirement in the MOST cost-effective way?

Answer options

• A. Store the data in Amazon Glacier Flexible Retrieval. Use Amazon S3 Glacier Select to query the data.
• B. Store the data in Amazon S3. Use Amazon S3 Select to query the data.
• C. Store the data in Amazon S3. Use Amazon Athena to query the data.
• D. Store the data in Amazon Glacier Instant Retrieval. Use Amazon Athena to query the data.

Correct answer: A

Explanation

The correct choice, A, allows for cost-effective long-term storage with Amazon Glacier Flexible Retrieval while enabling occasional queries using Amazon S3 Glacier Select. Options B and C involve Amazon S3 which typically incurs higher storage costs, and option D utilizes a more expensive retrieval method without providing the same cost efficiency as option A.