SAP-C02 Question 486
Select 3Your company runs a global e-commerce platform using AWS, with customers accessing the platform from multiple regions. To ensure data durability and high availability, you need to replicate data across regions while maintaining low latency and ensuring eventual consistency. Which combination of AWS services and replication methods is the best fit to meet this requirement?
- A
Amazon DynamoDB Global Tables to replicate data across multiple regions with eventual consistency
- B
Amazon S3 Cross-Region Replication (CRR) to replicate bucket data asynchronously to another region
- C
Amazon RDS Multi-AZ deployment to replicate data synchronously across regions
- D
Amazon Aurora Global Database to replicate data across regions with low latency
- E
AWS Storage Gateway to replicate data between on-premises and AWS regions
Show answer and explanation
Correct answers: A, B, D
Explanation
When designing a global application that requires multi-region data replication, it is important to choose services and replication methods that align with your application's durability, availability, and latency requirements. Amazon DynamoDB Global Tables provide eventual consistency for distributed databases, while Amazon S3 CRR is ideal for asynchronous replication of object storage. Amazon Aurora Global Database supports low-latency cross-region replication for relational databases. RDS Multi-AZ and AWS Storage Gateway do not meet the requirements for multi-region replication.
- A. Correct.
Correct. Amazon DynamoDB Global Tables provide automatic, fully-managed, multi-region replication with eventual consistency, making it well-suited for globally distributed applications.
- B. Correct.
Correct. Amazon S3 Cross-Region Replication (CRR) enables asynchronous replication of S3 bucket data to another region, ensuring data durability and availability across regions, though it is not suitable for real-time low-latency use cases.
- C. Incorrect.
Incorrect. Amazon RDS Multi-AZ deployment provides synchronous replication, but it is constrained to a single region and does not replicate across regions.
- D. Correct.
Correct. Amazon Aurora Global Database supports low-latency, cross-region replication by replicating data to secondary regions with a typical latency of less than 1 second, making it a good choice for globally distributed applications requiring low-latency access.
- E. Incorrect.
Incorrect. AWS Storage Gateway is designed for hybrid cloud storage use cases, such as extending on-premises storage to AWS, and is not suitable for multi-region replication of application data.