AWS Certified Cloud Practitioner — Question 724

A company needs to store data from a recommendation engine in a database.

Which AWS service provides this functionality with the LEAST operational overhead?

Answer options

• A. Amazon RDS for PostgreSQL
• B. Amazon DynamoDB
• C. Amazon Neptune
• D. Amazon Aurora

Correct answer: B

Explanation

Amazon DynamoDB is a fully managed, serverless NoSQL database service that provides fast, predictable performance with minimal administrative effort, making it the option with the least operational overhead. In contrast, relational options like Amazon RDS for PostgreSQL and Amazon Aurora, as well as Amazon Neptune, require more management effort for provisioning, scaling, and database maintenance. Therefore, DynamoDB is the optimal choice for storing recommendation data with minimal operational burden.