Crucial Exams

AWS Certified Solutions Architect Professional SAP-C02 Practice Question

A retail company is re-architecting its monolithic e-commerce platform into a distributed microservices architecture on AWS. A critical business process is order fulfillment, which involves a sequence of steps: validating the order, processing payment, updating inventory, and arranging shipping with a third-party logistics (3PL) provider via an external API.

The new design requires the following:

  • The Order Service must initiate the workflow.
  • Several other microservices, such as Analytics and Customer Notifications, need to be independently notified when a new order is successfully processed.
  • The interaction with the 3PL provider's API must be resilient, with built-in support for retries and error handling.
  • The entire fulfillment process must be traceable from start to finish, with clear visibility into the state of each order's workflow.
  • The architecture must allow for easy integration of future services that might also need to react to order events.

A solutions architect needs to select the most appropriate combination of AWS services to orchestrate this workflow and handle event distribution. Which combination of services best meets all these requirements?

  • Use a single AWS Lambda function to orchestrate the entire process and call the different microservices and APIs directly. Use an Amazon SNS topic for fan-out.

  • Use AWS Step Functions to orchestrate the sequential order fulfillment process. Use Amazon EventBridge to publish a final event, allowing various independent services to subscribe and react to completed orders.

  • Use a single Amazon SNS topic to trigger multiple Amazon SQS queues, one for each microservice in the order process, to process the steps in parallel.

  • Use Amazon SQS queues between each microservice to handle the sequence and an Amazon SNS topic to fan out notifications.

AWS Certified Solutions Architect Professional SAP-C02
Accelerate Workload Migration and Modernization
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