Question 650
What outcome would most directly confirm the intended AWS benefit? A shopping application needs its running instance count to rise during promotions and decline overnight.
Explanation
Correct Answer
The fleet grows under increased demand and shrinks during low utilization. This directly addresses the question rather than a different AWS use case. Amazon EC2 Auto Scaling adjusts instance capacity according to configured scaling policies. Recognize the requirement: Look for EC2 fleet sizes that should respond to changes in workload demand. At a high level, configure suitable EC2 Auto Scaling capacity and scaling criteria. The intended outcome is: The fleet grows under increased demand and shrinks during low utilization. Keep in mind: Scaling thresholds and health configuration must be appropriate to the application.
Incorrect Answers
Amazon EC2 provides resizable virtual server capacity with configurable instance families. That addresses a different mechanism; this question turns on The fleet grows under increased demand and shrinks during.
Amazon Elastic Container Service is an AWS container orchestration service. In the present case the governing issue is The fleet grows under increased demand and shrinks during, which this does not resolve.
Amazon Elastic Kubernetes Service provides managed Kubernetes control plane capabilities. It does not verify the requested outcome; here the decisive check concerns The fleet grows under increased demand and shrinks during.