Q7 — AWS SAA-C03 Ch.15

Question 7 of 100 | ← Chapter 15

Q1107. A company has a large workload that runs every Friday evening. The workload runs on Amazon EC2 instances that are in two Availability Zones in the us-east-l Region. Normally,the company must run no more than two instances at all times.However, the company wants to scale up to six instances each Friday to handle a regularly repeating increased workload. Which solution will meet these requirements with the LEAST operational overhead?

Correct Answer: B. Create an Auto Scaling group that has a scheduled action.

Explanation

To meet the company's requirements with the least operational overhead for scaling EC2 instances from two to six each Friday evening, the best solution is:B. Create an Auto Scaling group that has a scheduled action.Analysis:Requirement Breakdown:The company has a large workload that runs every Friday evening. The workload runs on EC2 instances in two Availability Zones in the us-east-1 region.Normally, no more than two instances are required.The company wants to scale up to six instances each Friday to handle the increased workload.Operational Overhead:The solution should minimize manual intervention and provide a reliable, automated way to scale the instances.Evaluation of Options:A. Create a reminder in Amazon EventBridge to scale the instances:EventBridge can be used to trigger events, but it doesn't inherently manage the scaling of EC2 instances. This would require additional logic (likely a Lambda function) to handle the scaling, which increases complexity and operational overhead.B. Create an Auto Scaling group that has a scheduled action:Auto Scaling groups provide a way to automatically manage the number of EC2 instances based on demand.Scheduled actions within an Auto Scaling group allow for predefined scaling policies to be executed at specific times or dates.This meets the requirement of scaling up to six instances on Friday evenings without requiring manual intervention.C. Create an Auto Scaling group that uses manual scaling:While an Auto Scaling group can be created, using manual scaling would defeat the purpose of automation.It would require someone to manually adjust the desired capacity each Friday, which increases operational overhead.D. Create an Auto Scaling group that uses automatic scaling:Automatic scaling adjusts the number of instances based on real-time demand and defined thresholds. While this can be effective for variable workloads, it's not ideal for a predictable, recurring workload like the one described.It might lead to unnecessary scaling events during the week when only two instances are needed.Conclusion:Option B, creating an Auto Scaling group with a scheduled action, is the most suitable solution. It minimizes operational overhead by automatically scaling the instances to six each Friday evening based on a predefined schedule, without requiring any manual intervention. This ensures that the company can handle the increased workload without any additional effort or complexity.