Standard SQS Fifo Queue

Question 1

What are Amazon SQS Standard Queues?

Answer 1

Standard queues offer maximum throughput, best-effort ordering, and at-least-once delivery. They ensure messages are delivered at least once but do not guarantee the order or prevent duplicates.

Example sentence: This type of queue is suitable for applications where the order of processing is less critical.

Question 2

What are Amazon SQS FIFO Queues?

Answer 2

FIFO (First-In-First-Out) queues guarantee that messages are processed in the exact order they are sent and a message is delivered once and remains available until a consumer processes and deletes it. They prevent duplicates and maintain the order, making them suitable for tasks where order and exact processing are critical.

Additional information: FIFO queues are ideal for applications that require strict message ordering and exactly-once processing semantics.