AWS Certified Solutions Architect – Associate (SAA-C03) — Question 177

An ecommerce company hosts its analytics application in the AWS Cloud. The application generates about 300 MB of data each month. The data is stored in JSON format. The company is evaluating a disaster recovery solution to back up the data. The data must be accessible in milliseconds if it is needed, and the data must be kept for 30 days.

Which solution meets these requirements MOST cost-effectively?

Answer options

• A. Amazon OpenSearch Service (Amazon Elasticsearch Service)
• B. Amazon S3 Glacier
• C. Amazon S3 Standard
• D. Amazon RDS for PostgreSQL

Correct answer: C

Explanation

Amazon S3 Standard is the most suitable option because it allows for quick access to data and meets the 30-day retention requirement at a lower cost compared to other solutions. Amazon OpenSearch Service is not designed specifically for storage and retrieval of JSON data, Amazon S3 Glacier is intended for long-term archival with slower access times, and Amazon RDS for PostgreSQL is a relational database solution that may incur higher costs and complexity for this use case.