AWS Certified Solutions Architect – Associate (SAA-C02) — Question 166

A company collects temperature, humidity, and atmospheric pressure data in cities across multiple continents. The average volume of data collected per site each day is 500 GB. Each site has a high-speed internet connection. The company's weather forecasting applications are based in a single Region and analyze the data daily.
What is the FASTEST way to aggregate data from all of these global sites?

Answer options

• A. Enable Amazon S3 Transfer Acceleration on the destination bucket. Use multipart uploads to directly upload site data to the destination bucket.
• B. Upload site data to an Amazon S3 bucket in the closest AWS Region. Use S3 cross-Region replication to copy objects to the destination bucket.
• C. Schedule AWS Snowball jobs daily to transfer data to the closest AWS Region. Use S3 cross-Region replication to copy objects to the destination bucket.
• D. Upload the data to an Amazon EC2 instance in the closest Region. Store the data in an Amazon Elastic Block Store (Amazon EBS) volume. Once a day take an EBS snapshot and copy it to the centralized Region. Restore the EBS volume in the centralized Region and run an analysis on the data daily.

Correct answer: A

Explanation

The fastest way to aggregate data is to enable Amazon S3 Transfer Acceleration, which speeds up uploads to S3 by using Amazon's network of edge locations. While other options may also facilitate data transfer, they introduce additional steps or delays, such as cross-Region replication or using AWS Snowball, which is not as immediate as direct uploads with transfer acceleration.