AWS Solutions Architect Associate Practice Test

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Study for the AWS Solutions Architect Associate Test. Our comprehensive quiz offers multiple-choice questions that replicate the exam environment. Benefit from detailed explanations and hints. Prepare confidently for your AWS certification exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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In AWS, which service is used for scaling applications automatically?

CloudFormation
Elastic Load Balancing
Auto Scaling
Elastic Beanstalk

The correct answer is: Auto Scaling

The correct answer is Auto Scaling, which is a crucial service in AWS for managing the scalability of applications automatically. Auto Scaling allows you to adjust the number of Amazon EC2 instances in response to changing application demand. By setting policies and adjustment thresholds, Auto Scaling can automatically increase or decrease the number of instances based on metrics like average CPU usage or request count. This ensures that your application can handle fluctuations in traffic efficiently, maintaining performance while also optimizing costs by only using the resources required at any given time. In contrast, while CloudFormation manages infrastructure provisioning through code and orchestration, it does not automatically scale resources based on traffic patterns. Elastic Load Balancing distributes incoming application traffic across multiple targets, such as EC2 instances, helping ensure fault tolerance, but does not automatically adjust the number of instances. Elastic Beanstalk simplifies application deployment and management but relies on Auto Scaling capabilities under the hood for handling scaling automatically. Thus, Auto Scaling is specifically designed for the purpose of dynamically adjusting the application's capacity.