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SAA-C03 · Question #263

A company is building a serverless web application with multiple interdependent workflows that millions of users worldwide will access. The application needs to handle bursts of traffic. Which…

The correct answer is B. Deploy an Amazon API Gateway HTTP API with a usage plan and throttle settings. Use AWS. Express Workflows in AWS Step Functions are optimized for high-throughput, short-duration, and low-cost workflows. They are suitable for applications with large volumes of parallel and interdependent tasks. When paired with HTTP APIs from API Gateway, which are more cost…

Submitted by salim_om· Mar 4, 2026Design Cost-Optimized Architectures

Question

A company is building a serverless web application with multiple interdependent workflows that millions of users worldwide will access. The application needs to handle bursts of traffic. Which solution will meet these requirements MOST cost-effectively?

Options

  • ADeploy an Amazon API Gateway HTTP API with a usage plan and throttle settings. Use AWS
  • BDeploy an Amazon API Gateway HTTP API with a usage plan and throttle settings. Use AWS
  • CDeploy an Amazon API Gateway HTTP API without a usage plan. Use AWS Step Functions with
  • DDeploy an Amazon API Gateway HTTP API without a usage plan. Use AWS Step Functions and

How the community answered

(37 responses)
  • A
    3% (1)
  • B
    84% (31)
  • C
    8% (3)
  • D
    5% (2)

Explanation

Express Workflows in AWS Step Functions are optimized for high-throughput, short-duration, and low-cost workflows. They are suitable for applications with large volumes of parallel and interdependent tasks. When paired with HTTP APIs from API Gateway, which are more cost- efficient than REST APIs, this setup offers scalability and cost-effectiveness.

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