SAA-C03 Question 75

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose A1

  B. Analyze performance with CloudWatch and increase EC2 instance size: Vertical scaling (increasing instance size) can address temporary performance issues but is less cost-effective and scalable. It does not modernize the architecture or address dropped transactions due to overloading. C. Use SNS with EC2 instances and Auto Scaling: While SNS can facilitate messaging, it is a publish/subscribe model, which is less suited for tier-to-tier decoupling. SQS is a better fit for reliable message queuing and processing. D. Use SQS with EC2 instances and Auto Scaling: While this addresses decoupling and scaling, it retains the burden of managing and scaling EC2 instances. A serverless solution like Lambda and API Gateway provides greater operational efficiency and modernization.

• Chose A1

  Clearly A, it significantly reduces operational work. All the other options involve some maintenance and cause additional operational work to maintain the EC2instances and ASG.

• Chose A1

  Using serverless services like API Gateway and AWS Lambda and SQS helps resolve this problem with the least operational overhead.