Question 1

A company is building an order processing system. Orders are placed by users via a web interface and sent to a backend processing tier. It is critical that orders are processed exactly once and in the exact order they were received.

Which AWS service should the solutions architect use to decouple the web tier from the processing tier?

Accepted Answer

Look for the keywords 'exactly once' and 'exact order'. This always points to SQS FIFO.

Question 2

What mistakes do candidates make on this AWS SAA-C03 question?

Accepted Answer

Choosing SQS Standard, which does not guarantee order or exactly-once delivery.

How to approach this question

Full Answer

Common mistakes

Practice the full AWS SAA-C03 Practice Exam 4

More questions from this exam