Question 1

A company is designing a microservices architecture. Service A needs to publish events that are consumed by Service B and Service C. Service B processes events immediately, while Service C batches them and processes them hourly. If Service C is down, events must not be lost.

Which TWO AWS services should be combined to build this architecture? (Select TWO.)

Accepted Answer

Identify the 'fan-out' pattern, which uses SNS to publish to multiple SQS queues.

Question 2

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

Accepted Answer

Thinking SNS alone is enough. SNS does not buffer messages; if the consumer is down, the message is lost unless an SQS queue is used.

How to approach this question

Full Answer

Common mistakes

Practice the full AWS SAA-C03 Practice Exam 4

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