Exam AWS Certified Developer Associate topic 1 question 11 discussion

C) - Correct - Messages that fail delivery will be stored in the SQS dead-letter queue, ensuring they are retained for later processing. This mechanism allows reprocessing of undelivered messages.

the answer should be C

Absolutely C because SQS has a dead-letter-queue service that stores messages failed.

C for SQS any message can be stored in DLQ , for this set up SQS with SNS , like To set up SNS with SQS, create an SNS topic, subscribe an SQS queue to it, and publish messages to the topic, which will be automatically delivered to the subscribed queue for processing.

When an SNS topic sends messages to a subscriber there can be many issues on the way. For example, the subscriber is down, the subscriber doesn't accept a message, the network is down, the topic does not have sufficient permission to send messages, etc.. It is a good practice to set a Dead Letter Queue (DLQ) to send in this queue the messages that can't be processed. A DLQ for SNS should be SQS (I tried but there is no way to set a SNS as DLQ). So the C is the correct one!

SQS is the right answer

should be C

SQS Dead letter queue

C "Amazon SNS stops retrying the delivery and discards the message—unless a dead-letter queue is attached to the subscription. " "A dead-letter queue is an Amazon SQS queue "

I'd use an SNS Dead Letter Queue...but okay - SQS it is...

SQS is correct

We needs a SQS

SQS is right using fan-out and also SQS has the storage

agreed with C.. Amazon SQS is async messaging bus that suitable with this case