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SAA-C03 · Question #337

A company uses an Amazon EC2 instance to handle requests for a public web application. The application routes traffic to multiple application pages by using URL paths. The company begins to…

The correct answer is A. Create an Amazon Machine Image (AMI) of the web application instance. Use the AMI to create. To handle unpredictable traffic surges and improve scalability, Auto Scaling is essential. Creating an AMI and deploying it into an Auto Scaling group behind an Application Load Balancer (ALB) allows AWS to automatically scale the number of EC2 instances based on demand. This…

Submitted by stefanr· Mar 4, 2026Design High-Performing Architectures

Question

A company uses an Amazon EC2 instance to handle requests for a public web application. The application routes traffic to multiple application pages by using URL paths. The company begins to experience large surges of traffic at unpredictable times. The traffic surges cause the web application to experience issues and to occasionally become unavailable. The company needs to make the web application more scalable to handle sudden increases in traffic. Which solution will meet this requirement?

Options

  • ACreate an Amazon Machine Image (AMI) of the web application instance. Use the AMI to create
  • BCreate a Docker image of the application. Use Amazon Elastic Container Service (Amazon ECS)
  • CCreate an Amazon Machine Image (AMI) of the web application instance. Use the AMI to create
  • DCreate an Application Load Balancer (ALB). Set the web application instance as the target.

How the community answered

(28 responses)
  • A
    82% (23)
  • B
    4% (1)
  • C
    11% (3)
  • D
    4% (1)

Explanation

To handle unpredictable traffic surges and improve scalability, Auto Scaling is essential. Creating an AMI and deploying it into an Auto Scaling group behind an Application Load Balancer (ALB) allows AWS to automatically scale the number of EC2 instances based on demand. This architecture improves availability and responsiveness by distributing traffic and launching instances when needed. Option A satisfies the need for high scalability and resilience. Other options either lack Auto Scaling or are more complex without added benefit in this context.

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