AWS Certified Solutions Architect – Associate (SAA-C02) — Question 547

A company has a remote factory that has unreliable connectivity. The factory needs to gather and process machine data and sensor data so that it can sense products on its conveyor belts and initiate a robotic movement to direct the products to the right location. Predictable low-latency compute processing is essential for the on-premises control systems.
Which solution should the factory use to process the data?

Answer options

• A. Amazon CloudFront Lambda@Edge functions
• B. An Amazon EC2 instance that has enhanced networking enabled
• C. An Amazon EC2 instance that uses an AWS Global Accelerator
• D. An Amazon Elastic Block Store (Amazon EBS) volume on an AWS Snowball Edge cluster

Correct answer: D

Explanation

An AWS Snowball Edge device with Amazon EBS volumes provides local block storage and compute capabilities that can operate entirely offline, making it ideal for low-latency, on-premises processing in remote environments with unreliable connectivity. In contrast, Amazon CloudFront Lambda@Edge and standard Amazon EC2 options (even with enhanced networking or AWS Global Accelerator) require a stable, high-performance internet connection to the AWS cloud, which is not feasible under the specified constraints.