Distributed web application is using multiple Amazon SQS standard & FIFO queues created in various AWS regions. There is an additional requirement to create a Dead-letter queue and these queues to isolate & debug problematic messages. While creating a dead-letter queue, which of the following is the TRUE statement? (Select Three).

Answer options:

A.For the FIFO queue, FIFO Dead Letter queue should be created.
B.For Standard queue, FIFO or Standard Dead-Letter queue can be created.
C.Use the same AWS Account to create Dead-Letter & standard queue.
D.Dead-Letter queue & Standard queue should reside in the same AWS region.
E.Dead-Letter queue & FIFO queue can reside in any AWS region.

Correct Answer – A, C, D
While creating the Dead-Letter queue, it should be the same as an original queue which will send a message to the Dead-Letter queue that is for standard queue, standard dead-letter queue should be created & for FIFO queue, FIFO dead-letter queue. Also, the same AWS account needs to create both these queues & both these queues should reside in the same AWS region.
Option B is incorrect as for the standard queue, a dead letter queue should also be a standard queue & not FIFO queue.
Option E is incorrect as FIFO queue & Dead-letter queue should need to be in the same AWS region.
For more information on DLQ with Amazon SQS, refer to the following URL-
https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-dead-letter-queues.html