ExpertMedium1 markMultiple Choice
AWS SAA-C03 · Question 22 · Domain 2.1: Scalable Architectures
An e-commerce application processes orders asynchronously. The order processing system must ensure that every order is processed exactly once and in the exact order it was received.<br/><br/>Which AWS service should be used to decouple the application?
An e-commerce application processes orders asynchronously. The order processing system must ensure that every order is processed exactly once and in the exact order it was received.<br/><br/>Which AWS service should be used to decouple the application?
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
Look for the keywords 'exactly once' and 'exact order'.
Full Answer
B.Amazon SQS FIFO queue✓ Correct
Amazon SQS FIFO (First-In-First-Out) queues are designed to guarantee that messages are processed exactly once, in the exact order that they are sent.
Common mistakes
Choosing SQS Standard, which allows occasional duplicates and out-of-order delivery.
Practice the full AWS SAA-C03 Practice Exam 6
65 questions · hints · full answers · grading
More questions from this exam
Q01A company has multiple AWS accounts in an AWS Organizations organization. The security team wants...MediumQ02A company has two AWS accounts: Account A for development and Account B for production. Developer...MediumQ03A mobile application needs to authenticate users using their social media accounts (Facebook, Goo...EasyQ04A company is running an application on Amazon EC2 instances. The application needs to connect to ...MediumQ05A company has 50 AWS accounts managed by AWS Organizations. The IT team wants to implement a cent...Easy