SOA-C02 · Question #524
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…
The correct answer is A. Use a Spot Fleet with an On-Demand capacity of 6 instances. Amazon EC2 Auto Scaling allocates your Spot Instances from the N number of pools per Availability Zone that you specify and from the Spot Instance pools with the lowest price in each Availability Zone…
Question
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?
Options
- AUse a Spot Fleet with an On-Demand capacity of 6 instances.
- BUpdate the Auto Scaling group with a minimum of 6 On-Demand Instances and a maximum of 10
- CUpdate the Auto Scaling group with a minimum of 1 On-Demand Instance and a maximum of 6
- DUse a Spot Fleet with a target capacity of 6 instances.
How the community answered
(52 responses)- A71% (37)
- B15% (8)
- C10% (5)
- D4% (2)
Explanation
Amazon EC2 Auto Scaling allocates your Spot Instances from the N number of pools per Availability Zone that you specify and from the Spot Instance pools with the lowest price in each Availability Zone. https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-mixed-instances-
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