AWS Certified Cloud Practitioner — Question 975

What type of database is Amazon DynamoDB?

Answer options

• A. In-memory
• B. Relational
• C. Key-value
• D. Graph

Correct answer: C

Explanation

Amazon DynamoDB is a fully managed NoSQL database service that supports key-value and document data structures, offering single-digit millisecond performance at any scale. While services like Amazon ElastiCache provide in-memory storage, Amazon RDS handles relational data, and Amazon Neptune is designed for graph databases, DynamoDB's primary model is key-value.