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Question 36

A solutions architect is designing an application for a two-step order process. The first step is synchronous and must return to the user with little latency. The second step takes longer, so it will be implemented in a separate component. Orders must be processed exactly once and in the order in which they are received.How should the solutions architect integrate these components?

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Explanation

FIFO (First-In-First-Out) queues are designed to enhance messaging between applications when the order of operations and events is critical, or where duplicates can't be tolerated, for example:

Ensure that user-entered commands are executed in the right order.

Display the correct product price by sending price modifications in the right order.

Prevent a student from enrolling in a course before registering for an account.

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