AWS Certified Database – Specialty — Question 181

A retail company is about to migrate its online and mobile store to AWS. The company's CEO has strategic plans to grow the brand globally. A Database
Specialist has been challenged to provide predictable read and write database performance with minimal operational overhead.
What should the Database Specialist do to meet these requirements?

Answer options

• A. Use Amazon DynamoDB global tables to synchronize transactions
• B. Use Amazon EMR to copy the orders table data across Regions
• C. Use Amazon Aurora Global Database to synchronize all transactions
• D. Use Amazon DynamoDB Streams to replicate all DynamoDB transactions and sync them

Correct answer: A

Explanation

The correct answer is A because Amazon DynamoDB global tables allow seamless synchronization of data across AWS Regions, providing the required performance and low operational overhead. Option B is incorrect as Amazon EMR is not designed for transactional consistency, while option C, although a viable option, does not align as closely with the need for low operational overhead as DynamoDB. Option D is also not suitable since DynamoDB Streams is primarily for capturing changes rather than synchronizing transactions across regions.