Discover which AWS service is a key-value database offering single-digit millisecond latency at any scale. Learn why Amazon DynamoDB is the ideal choice for high-performance, scalable applications.
Table of Contents
Question
Which AWS service is a key-value database that delivers single-digit millisecond latency at any scale?
A. Amazon DynamoDB
B. Amazon Aurora
C. Amazon DocumentDB (with MongoDB compatibility)
D. Amazon Neptune
Answer
A. Amazon DynamoDB
Explanation
The correct answer is A because Amazon DynamoDB is a key-value database that delivers single-digit millisecond latency at any scale. Amazon DynamoDB is a fully managed, serverless, and scalable NoSQL database service that supports both key-value and document data models.
The other options are incorrect because they are not key-value databases. Amazon Aurora is a relational database that is compatible with MySQL and PostgreSQL. Amazon DocumentDB (with MongoDB compatibility) is a document database that is compatible with MongoDB. Amazon Neptune is a graph database that supports property graph and RDF graph models.
Why Amazon DynamoDB?
Amazon DynamoDB is a fully managed NoSQL database service specifically designed to provide key-value and document database capabilities. It delivers consistent single-digit millisecond latency at any scale, making it ideal for applications that require fast and predictable performance. Key features include:
- High Performance: DynamoDB is optimized for low-latency operations, ensuring that single-item read and write requests are processed within milliseconds, even under heavy workloads.
- Scalability: It automatically scales up or down to handle millions of requests per second without manual intervention.
- Serverless Architecture: Being serverless, it eliminates the need for provisioning or managing servers, simplifying database management.
- Use Cases: Common use cases include real-time bidding, gaming leaderboards, IoT applications, and e-commerce platforms.
Amazon DynamoDB stands out as the best choice for applications requiring a key-value database with single-digit millisecond latency, thanks to its scalability, performance, and serverless design. The other options—Aurora, DocumentDB, and Neptune—serve different database needs and are not optimized for key-value storage or ultra-low latency.
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