SAA-C03 Design High-Performing Architectures Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✓

  Use an Amazon S3 Gateway Endpoint.

  Why this is correct

  A Gateway Endpoint allows traffic to route privately and directly from a VPC to S3 within the same region. By keeping traffic within the AWS network, it avoids public internet congestion, leading to improved throughput and lower latency for data-intensive operations like image processing, directly addressing the identified bottleneck.

• ✗

  Increase the EC2 instance size.

  Why it's wrong here

  Increasing the instance size provides more CPU and RAM but does not inherently improve network throughput if the bottleneck is the path to S3. While larger instances have higher network limits, the fundamental issue of network routing remains. Optimizing the network path via VPC endpoints is more effective.

• ✗

  Enable S3 Transfer Acceleration.

  Why it's wrong here

  S3 Transfer Acceleration is designed for long-distance uploads to S3 from client machines over the public internet using CloudFront edge locations. It is not intended for high-speed data transfer between AWS services within the same internal network, making it an inappropriate solution for this specific EC2-to-S3 bottleneck.

• ✗

  Use CloudFront to cache the images.

  Why it's wrong here

  CloudFront is excellent for distributing content to users, but for an EC2 instance pulling data for processing, adding a caching layer adds architectural complexity without guaranteeing performance improvements. The instance should be pulling directly from S3, ideally via a VPC endpoint, for the most efficient, low-latency performance.