Explanation:
Since the application is stateless, it is a good candidate for Spot instances. However, because a minimum of 6 instances are needed to meet service requirements (maintaining uptime), providing those 6 as On-Demand capacity within a Spot Fleet ensures the baseline requirement is always met reliably, while any additional instances can be Spot to maximize cost-effectiveness.
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Question 37. A company has a stateless application that is hosted on a fleet of 10 Amazon EC2 On-Demand Instances in an Auto Scaling group. A minimum of 6 instances are needed to meet service requirements. Which action will maintain uptime for the application MOST cost-effectively?
A
Use a Spot Fleet with an On-Demand capacity of 6 instances.
B
Update the Auto Scaling group with a minimum of 6 On-Demand Instances and a maximum of 10 On-Demand Instances.
C
Update the Auto Scaling group with a minimum of 1 On-Demand Instance and a maximum of 6 On-Demand Instances.
D
Use a Spot Fleet with a target capacity of 6 instances.
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