Question

SQS FIFO guarantees at least once delivery although there may be duplicate messages.

A. True
B. False

Answer 1

SQS FIFO guarantees at least once delivery although there may be duplicate messages.

Step-by-step explanation:

The statement 'SQS FIFO guarantees at least once delivery although there may be duplicate messages' is True. The FIFO (First-In-First-Out) queue in Amazon Simple Queue Service (SQS) ensures that messages are delivered in the same order they are sent, providing a guarantee of at least once delivery. However, due to potential factors like retries, network errors, and processing failures, there might be instances where duplicate messages are received. SQS FIFO mitigates this issue by providing deduplication based on the message's unique identifier (Message Deduplication ID), ensuring that only unique messages are processed.