A company is building a highly available web application. They need a database that provides single-digit millisecond latency at any scale, supports key-value data models, and automatically replicates data across multiple AWS Regions for active-active usage. Which database should they choose?

Answer options:

Amazon Aurora Global Database

Amazon DynamoDB with Global Tables

Amazon RDS for PostgreSQL with Cross-Region Read Replicas

Amazon DocumentDB

How to approach this question

Match 'single-digit millisecond', 'key-value', and 'active-active multi-region' with DynamoDB Global Tables.

Full Answer

B.Amazon DynamoDB with Global Tables✓ Correct

Amazon DynamoDB is a key-value and document database that delivers single-digit millisecond performance at any scale. DynamoDB Global Tables provide a fully managed solution for deploying a multi-region, active-active database.

Common mistakes

Confusing Aurora Global Database (relational) with DynamoDB Global Tables (NoSQL).

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