ExpertEasy1 markMultiple Choice
AWS SAA-C03 · Question 23 · Domain 2.1: Scalable Architectures
A company is building a decoupled application where a producer sends messages to a queue, and a consumer processes them. The order of the messages is critical, and duplicate processing must be avoided. Which AWS service should be used?
A company is building a decoupled application where a producer sends messages to a queue, and a consumer processes them. The order of the messages is critical, and duplicate processing must be avoided. Which AWS service should be used?
Answer options:
A.
Amazon SQS standard queue
B.
Amazon SQS FIFO queue
C.
Amazon SNS
D.
Amazon Kinesis Data Streams
How to approach this question
Match 'order is critical' and 'no duplicates' with SQS FIFO.
Full Answer
B.Amazon SQS FIFO queue✓ Correct
Amazon SQS FIFO queue
Amazon SQS FIFO (First-In-First-Out) queues are designed to enhance messaging between applications when the order of operations and events is critical, or where duplicates can't be tolerated. They provide exactly-once processing and strict ordering.
Common mistakes
Choosing SQS Standard, which does not guarantee order and may deliver duplicates.
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