AWS Certified Solutions Architect - Associate
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A travel ticketing web application, currently hosted in a single North American data center, seeks a scalable solution for global expansion on AWS. The solution must support multi-region deployment, a globally consistent primary reservation database, and ensure update latencies under 1 second. Which AWS service configuration is recommended?
Explanation:
The correct answer is B. Amazon Aurora MySQL with read replicas across multiple regions is well-suited for this scenario because it provides high availability, low latency, and global consistency for the reservation database. Aurora supports multi-region read replicas, which means the primary database can stay consistent across regions while providing low-latency reads and writes. Unlike DynamoDB, which is a NoSQL database, Aurora MySQL is an SQL-based database, making it easier to migrate the current setup to Aurora.