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Amazon Web Services AWS Certified Solutions Architect - Associate (SAA-C03) SAA-C03 Question # 127 Topic 13 Discussion

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Amazon Web Services AWS Certified Solutions Architect - Associate (SAA-C03) SAA-C03 Question # 127 Topic 13 Discussion

SAA-C03 Exam Topic 13 Question 127 Discussion:
Question #: 127
Topic #: 13

A company has an ecommerce checkout workflow that writes an order to a database and calls a service to process the payment. Users are experiencing timeouts during the checkout process. When users resubmit the checkout form, multiple unique orders are created for the same desired transaction.

How should a solutions architect refactor this workflow to prevent the creation of multiple orders?
A.

Configure the web application to send an order message to Amazon Kinesis Data Firehose. Set the payment service to retrieve the message from Kinesis Data Firehose and process the order.

B.

Create a rule in AWS CloudTrail to invoke an AWS Lambda function based on the logged application path request Use Lambda to query the database, call the payment service, and pass in the order information.

C.

Store the order in the database. Send a message that includes the order number to Amazon Simple Notification Service (Amazon SNS). Set the payment service to poll Amazon SNS. retrieve the message, and process the order.

D.

Store the order in the database. Send a message that includes the order number to an Amazon Simple Queue Service (Amazon SQS) FIFO queue. Set the payment service to retrieve the message and process the order. Delete the message from the queue.

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Actual exam question for Amazon Web Services SAA-C03 exam by Rael2895 at Aug 2, 2025, 12:00:00 AM

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