Question

Which scenarios indicate that you should use an Amazon SQS standard queue? (Select TWO).

A. A message might need to be delivered more than once.
B. Message prioritization is necessary.
C. Messages must be processed in the order they are sent.
D. A message must be processed only once.
E. Messages can be sent in any order.

Answer 1

Amazon SQS standard queues should be used in scenarios where messages might need to be delivered more than once and where the order of messages is not important.

Step-by-step explanation:

Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. It allows you to send, store, and receive messages between software components at any volume, without losing messages or requiring other services to be available. When deciding to use an Amazon SQS standard queue, there are two scenarios to consider:

A. A message might need to be delivered more than once: SQS standard queues provide at-least-once delivery, which means that there is a possibility of a message being delivered more than once. This can be useful in cases where duplicate messages are acceptable and can enable fault tolerance in your system.

E. Messages can be sent in any order: SQS standard queues are designed to provide a best-effort guarantee of order of messages, which means that the order of the messages is not guaranteed. If the order of the messages is not important for your use case, you can use an SQS standard queue.