ExpertEasy1 markMultiple Choice
AWS SAA-C03 · Question 21 · Domain 2.3: Decoupling
A company is building an order processing system. Messages must be processed exactly once and in the exact order they were received. Which AWS service should be used?
A company is building an order processing system. Messages must be processed exactly once and in the exact order they were received. 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 Firehose
How to approach this question
Match 'exactly once' and 'exact order' to the queue type.
Full Answer
B.Amazon SQS FIFO queue✓ Correct
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.
Common mistakes
Choosing Standard SQS, which allows duplicates and out-of-order delivery.
Practice the full AWS SAA-C03 Practice Exam 2
65 questions · hints · full answers · grading
More questions from this exam
Q01A company wants to ensure that no AWS resources can be created in the ap-northeast-1 region acros...EasyQ02A web application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The com...EasyQ03A company is storing highly sensitive data in an Amazon S3 bucket. The security team requires tha...MediumQ04An application running on an EC2 instance needs to access an Amazon DynamoDB table in a different...HardQ05A company needs to store database credentials securely. The credentials must be automatically rot...Medium