Crucial Exams

AWS Certified Developer Associate DVA-C02 Practice Question

A developer has deployed a new web application using AWS Elastic Beanstalk with a default t3.medium instance configuration. Before the production launch, the developer needs to ensure the underlying EC2 instances are right-sized to handle expected traffic efficiently and cost-effectively. What is the MOST effective approach to determine the optimal instance type and size?

  • Use a load testing service to simulate production traffic against the Elastic Beanstalk environment. Analyze the application's performance metrics in Amazon CloudWatch and review the recommendations provided by AWS Compute Optimizer.

  • Switch the instance type to one used by an older, existing application with similar functionality, assuming the performance characteristics will be identical.

  • Vertically scale the instance to the largest size available in its family to preemptively avoid performance issues, then set a budget alarm using AWS Budgets to monitor for excessive costs.

  • Rely on the default Elastic Beanstalk managed scaling policies to handle load. Review the AWS Cost and Usage Report after the first month of production to make adjustments.

AWS Certified Developer Associate DVA-C02
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