AWS Certified Cloud Practitioner — Question 136

Which of the following is an AWS key-value database offering consistent single-digit millisecond performance at any scale?

Answer options

• A. Amazon RDS
• B. Amazon Aurora
• C. Amazon DynamoDB
• D. Amazon Redshift

Correct answer: C

Explanation

The correct answer is Amazon DynamoDB, as it is specifically designed as a key-value database that provides consistent single-digit millisecond performance at scale. In contrast, Amazon RDS and Amazon Aurora are relational database services that do not focus on key-value storage, while Amazon Redshift is a data warehouse service optimized for analytics rather than key-value access patterns.